IanT

June 2016 – Summary

June was a month of two halves, the first being warm and dry with copious amounts of sunshine during which time we experienced record high temperatures for the time of year, the latter dull, wet and windy.

The month began with clear skies and 16 hours of sunshine on the 1st. The weather continued in this vein until the 17th, during which time there were 7 days when temperatures rose above 20°C, the highest being 23.3°C on the 5th, a record high for the month of June. We also recorded our highest June Heat Index (23.3°C), and highest Daily Temperature Range (12.2°C) on the same day . Our highest June Apparent Temperature (24.3°C) and Dew Point (18.0°C) was also recorded on the 6th and 7th respectively.

During this period, there were 12 dry days and only 8.4mm of rain. This minimal amount accompanied lower than average rainfall during the previous two months, prompting the local water company to issue a warning to every household regarding water usage and the need to conserve supplies. This was tantamount to a hosepipe ban and prompted discussions about a drought and the phrase “we need some rain” was to be heard for the first time in living memory.

Those who uttered the phrase were soon to have their wish granted as the wind veered to the south on the 18th bringing cloud, rain and lower temperatures until the end of the month. Despite the fall in temperatures, the month ended as our warmest June with an average temperature (1 minute) of 13.8°C.

Summary for June 2016

Temperature (°C):
Mean (1 minute)         13.8                        Record High for the month of June
Mean (min+max)        14.2                        Record High for the month of June
Mean Minimum           11.0
Mean Maximum          17.4                       Record High for the month of June
Minimum                        6.8          17th      Record High for the month of June
Maximum                     23.3           5th       Record High for the month of June
Highest Minimum        13.3            4th
Lowest Maximum        13.4          16th       Record High for the month of June
Air frosts                           0

Rainfall (mm):
Total for month         39.0
Wettest day               5.8           28th            Record Low for the month of June
High rain rate           63.6           29th
Rain days                 18

Days >= 2.0mm        6
Days >= 10.0mm      0
Days>= 20.0mm       0

Dry days        12

Wind (mph):
Highest Gust            34.0       15th
Average Speed        8.3
Wind Run            5991.2 miles
Gale days                  0

Pressure (mb):
Maximum            1032.28          1st
Minimum               997.33        30th

Days with snow falling                  0
Days with snow lying at 0900       0

Total hours of sunshine          153.4
No. of Sunshine Days              24
Sunniest Day          1st           16.0 hours

Spring 2016 – Summary

The snow and below average temperatures in April were countered by the clear skies and higher temperatures of May, which ensured that statistically, Spring 2016 passed without too much of note.

The passage of March was uneventful apart from it being the calmest here at Askernish. Temperatures struggled in April in a keen wind and there were four consecutive days when snow fell towards the end of the month. Although the winds remained northerly in May, the dry, clear weather resulted in record amounts of sunshine and days when the temperature rose above 15°C.

Summaries for the three months that constitute Spring precede this summary on the blog.

Statistical Summary for Spring 2016 (March – May 2016)

Temperature (°C):
Mean (1 minute)           8.4
Mean (min+max)          8.5
Mean Minimum            5.4
Mean Maximum         11.5
Minimum                      -1.4              26th April
Maximum                    26.7              9th May
Highest Minimum        13.4             10th May
Lowest Maximum         5.8              5th March
Days above 20˚C          5
Days above 15˚C         15                                          Record high for Spring
Days below 0˚C             2
Days below -5˚C            0
Air frosts                           2
Rainfall (mm):
Total for period              180.8
Wettest day                   17.0               25th March
High rain rate                  34.4                1st May
Rain days                          5
Days >= 2.0mm                29
Days >= 10.0mm               2
Days>= 20.0mm                0
Dry days                          38
Wind (mph):
Highest Gust                   47.0                    2nd March
Average Speed                9.8
Wind Run                  21623.1 miles
Gale days                         0
Predominant Direction             NNE

Pressure (mb):
Maximum                   1038.41              14th March
Minimum                      969.12               26th March                   Lowest recorded in Spring

Days with snow falling                    4                          Record high for Spring
Days with snow lying at 0900               0

Total hours of sunshine             502.0               Record high for Spring
No. of Sunshine Days                  80
Sunniest Day         25th May    15.8

May 2016 – Summary

Predominantly northerly winds are always associated with settled and clear conditions at this time of year. Such was the case this month, resulting in below average rainfall and record amounts of sunshine. Despite the same winds maintaining a keen edge, it could not prevent this May from being our warmest here at Askernish.

 

Northerly winds dominated the month of May, broken only by two brief spells (1st-5th and 16th-20th) when weak Atlantic fronts brought more humid conditions from the south. It was during these two spells that all but 1.8mm of the total months rain (39.2mm) fell with the wettest day being the 1st.

For the remainder of the month, it was clear, bright and sunny. Despite it feeling chill at times in the wind, temperatures reached 20°C on four consecutive days (8th-11th), with a high of 26.7°C on the 9th. It was on this day that the humidity fell to 33%, a record low for May and equaling our station record.

With the clear skies and long days, there was a station record high of 243.4 hours of sunshine with 15.8 hours on the 25th.

Statistical Summary for May 2016

Temperature (°C):
Mean (1 minute)            11.5                     Record high for May
Mean (min+max)           11.5                     Record high for May
Mean Minimum                8.0
Mean Maximum             15.0                     Record high for May
Minimum                           1.9       13th
Maximum                        26.7        9th
Highest Minimum           13.4       10th
Lowest Maximum            9.8        15th
Air frosts                              0

Rainfall (mm):
Total for month     39.2
Wettest day           7.8                 1st            Record low for May
High rain rate       34.4                1st
Rain days             13
Days >= 2.0mm      6
Days >= 10.0mm    0
Days>= 20.0mm     0

Dry days                18

Wind (mph):
Highest Gust          43.0    4th
Average Speed     10.2
Wind Run           7604.1 miles
Gale days            0

Pressure (mb):
Maximum                1032.07          31st
Minimum                   995.33          20th

Days with snow falling                 0
Days with snow lying at 0900      0

Total hours of sunshine        243.4     Our sunniest month
No. of Sunshine Days          27
Sunniest Day       25th         15.8 hours

April 2016 – Summary

Despite the chilly temperatures and snow that the predominantly northerly winds inflicted upon us, this April was not quite as cold as April 2013. One consolation was that with clearer skies, this was the sunniest April here at Askernish.

 

With the wind having a keen edge all month, April felt chill despite temperatures reaching double figures on numerous occasions. With a mean temperature of 7.0°C, as with the rest of the UK this April was not our coldest. That honour remains with the April of 2013 when the mean temperature was just 6.4°C.

Low temperatures towards the end of the month meant that any precipitation fell as snow as it did on four consecutive days (25th – 29th). Although it did not settle for any length of time except on the hills, this was a record number of days with snow falling for April.

With the northerlies came clearer skies resulting in 168.9 hours of sunshine, a record high for April at our station.

Rainfall of 52.2mm was a little above average but continued the trend of April becoming one of our driest months of the year.

An average wind speed of 10.2mph for the month was also a little above average, but a high gust of 39.0mph was the lowest recorded here in April.

 

Statistical Summary – April 2016

Temperature (°C):
Mean (1 minute)           7.0
Mean (min+max)          7.0
Mean Minimum             4.0
Mean Maximum          10.1
Minimum                       -1.4         26th
Maximum                     13.6         11th
Highest Minimum          7.2          10th          Lowest Recorded in April
Lowest Maximum          7.3          25th
Air frosts                           2

Rainfall (mm):
Total for month          52.2
Wettest day                9.0            1st
High rain rate            26.8            6th
Rain days                  20
Dry days                    10
Days >= 2.0mm           9
Days >= 10.0mm         0
Days>= 20.0mm          0

Wind (mph):
Highest Gust             39.0           1st            Lowest recorded in April
Average Speed       10.2
Wind Run              7350.9 miles
Gale days                   0
Predominant Direction       NW

Pressure (mb):
Maximum              1032.07        20th
Minimum               993.23          5th

Days with snow falling                      4        Record High for April
Days with snow lying at 0900          0

Total hours of sunshine         168.9           Record High for April
No. of Sunshine Days              29
Sunniest Day         10th       11.8 hours

March 2016 – Summary

Yet another month when many records tumbled, a continuing trend which shows no signs of abating. Most noticeable was that this was our calmest March and there were 10 consecutive days without rain.

A prolonged calm and dry spell ensured that this was our calmest March with an average wind speed of just 9.0mph resulting in a wind run of 6668.1 miles. During this period, no rain was recorded on 10 consecutive days between 13th – 22nd and the 16th was our sunniest March day with 10.1 hours of sunshine. Also the highest March temperature (15.4°C) and the highest March daily temperature range of 11.1°C (15.4°C – 4.3°C) was recorded on the 15th plus the highest March apparent temperature of 14.1°C occurred on the 16th.

Despite the prolonged dry spell, rainfall for the month was above average helped by 17mm falling on the 25th, our wettest March day.

2 other records of note were: the lowest March humidity of 39% recorded on the 15th and the lowest March pressure recorded, that of 969.1mb during the early hours of the 26th.

Apologies for the briefer than usual summary. This was due to the station being unmanned throughout the month.

Statistical Summary for March 2016

Temperature (°C):
Mean (1 minute)            6.7
Mean (min+max)           6.9
Mean Minimum              4.2
Mean Maximum             9.5
Minimum                         0.2    on 5th
Maximum                      15.4    on 15th
Highest Minimum           8.7    on 12th
Lowest Maximum           5.8    on 5th
Air frosts     0

Rainfall (mm):
Total for month        89.4
Wettest day            17.0    on 25th                      Record high for March
High rain rate          16.8    on 24th
Rain days         21
Dry days          10
Days >= 2.0mm     14
Days >= 10.0mm     2
Days>= 20.0mm      0

Wind (mph):
Highest Gust         47.0    on 2nd
Average Speed     9. 0                             Record low for March
Wind Run            6668.1 miles                  Record low for March
Gale days     0

Pressure (mb):
Maximum       1038.41       on 14th
Minimum          969.12       on 26th              Record low for March

Days with snow falling                   0
Days with snow lying at 0900       0

Total hours of sunshine      89.7
No. of Sunshine Days        24
Sunniest Day           10.1 hours on 16th          Sunniest March day

Winter 2015-16 – Summary

While the UK recorded its warmest winter, it was a phenomenon that passed us by. Temperatures here at Askernish were “average” with a mean (1 minute) temperature of 6.2°C for the winter period.

The only other statistics of note were that there were only 34 days when the sun shone, the fewest recorded in winter, 21.8mm of rain fell on the 28th December making it our wettest winter day, and the maximum pressure of 1031.94mb on the 15th February was the lowest maximum recorded for winter.

Apologies for the shorter than usual summary. This was due to the station being unmanned for most of the winter period.

Statistical summary for the winter period – (1st Dec 2015 to 29th Feb 2016)

Temperature (°C):
Mean (1 minute)         6.2
Mean (min+max)        5.9
Mean Minimum           3.6
Mean Maximum          8.3
Minimum                     -3.2 on 14th February
Maximum                    12.6 on 18th December
Highest Minimum       10.8 on 18th December
Lowest Maximum          3.9 on 13th January
Air frosts    8
Days above 20˚C   0
Days above 15˚C   0
Days below 0˚C     8
Days below -5˚C    0

Rainfall (mm):
Total for period        430.8
Wettest day            21.8 on 28th December                Record high for winter
High rain rate          192.0 on 10th February                Record high for this station
Rain days     84
Dry days       7
Days >= 2.0mm      60
Days >= 10.0mm    13
Days>= 20.0mm       1

Wind (mph):
Highest Gust         71.0 on 1st February
Average Speed    14.3
Wind Run        31192.4 miles
Gale days       3

Pressure (mb):
Maximum     1031.94 on 15th February                   Lowest winter maximum
Minimum       962.58 on 07th February

Days with snow falling    1
Days with snow lying at 0900    0

Total hours of sunshine     128.8
No. of Sunshine Days           34     Least number recorded in winter
Sunniest Day                        7.2 on 27th February

February 2016 – Summary

February was yet another month when many new records were set. Not only was it our coldest and sunniest February, it also produced our windiest day and highest rain rate ever here at Askernish.

Low temperatures dominated the month with the mercury never exceeding 10°C. With a mean temperature of just 4.8°C for the month, this was our coldest February and an overnight low of 3.2°C on 14th was our lowest February temperature. Clearing skies and low overnight temperatures later in the month produced not only our highest February daily temperature range of 11.7°C (9.9 to -1.2) but also our sunniest February day on the 27th.

The wind was a feature early in the month with winds gusting to 71mph on the 1st, our highest February wind speed. The average wind speed for that day was 33.9mph resulting in a wind run of 814 miles making it our windiest ever day here at Askernish.

Heavy rain fell on the 15th and 16th during which time 4.0mm of rain fell in 1 hour, our highest February hourly rain rate on the 16th and a rain rate of 192.0mm/hour occurred early on 11th , a record for this station

Apologies for the briefer than usual summary. This was due to the station being unmanned throughout the month.

Summary for February 2016

Temperature (°C):
Mean (1 minute)          4.8                          Record low for the month of February
Mean (min+max)        4.7                           Record low for the month of February
Mean Minimum           1.9                           Record low for the month of February
Mean Maximum          7.5
Minimum                     -3.2       14th            Record low for the month of February
Maximum                     9.9       27th
Highest Minimum        5.9         4th             Record low for the month of February
Lowest Maximum       5.1        24th
Air frosts         5

Rainfall (mm):
Total for month      106.8
Wettest day             15.8         16th
High rain rate          192.0        10th      Station record high rain rate
Rain days          26
Dry days             3
Days >= 2.0mm      15
Days >= 10.0mm      3
Days>= 20.0mm       0

Wind (mph):
Highest Gust    71.0      1st       Record high for the month of February
Average Speed     12.5
Wind Run       8723.0 miles
Gale days      1
Predominant Direction      SSW

Pressure (mb):
Maximum      1031.94      15th
Minimum        962.58       7th

Days with snow falling     0
Days with snow lying at 0900     0

Total hours of sunshine     76.8        Record high for the month of February
No. of Sunshine Days          23          Record high for the month of February
Sunniest Day       27th         7.2 hours

Henry and our windiest day

Storm Henry left its mark as it passed by our islands when winds peaked here at 71 mph, a record high for the month of February. With an average wind speed of 33.4 mph and a wind run of 814 miles, the 1st February became our windiest day ever, beating the previous record wind run of 795.0 miles recorded on the 10th December 2014.

January 2016 – Summary

It seems that hardly a month goes by these days without a record being broken. While the wind and rain continued to dominate our weather throughout January, no headline records were broken despite the best efforts of Gertrude, our seventh storm of the winter. There was however some very unseasonal high temperatures elsewhere in the UK and during one such period we recorded our highest ever January temperature. With so much cloud accumulation associated with these weather patterns and high temperatures, it was no surprise that this was our dullest January.

Looking back over the month, it was dull, wet and windy. It began in that fashion with slightly lower than average temperatures and rainfall, with winds gusting to 45mph in an easterly air steam until the wind backed North on the 10th. This brought calmer, clearer conditions with less cloud and wind during which time we experienced some sunshine but lower temperatures. Our only two air frosts of the month occurred on the 13th and then again on the 15th when temperatures fell to -2.2°C but oddly enough, the 15th was our sunniest ever January day with 4.0 hours of sunshine being recorded. Some cloud developed on the 16th raising the temperature slightly until Southerlies brought much warmer and humid conditions from the 22nd onwards.

Our highest ever January temperature of 11.2°C occurred on the 22nd, only to be superseded on 24th when the mercury reached 12.3°C. Several associated records were also broken for January, that of Heat Index (12.3°C) and Dew Point (11.4°C). We also recorded our highest ever January Minimum Temperature on same day when the temperature did not fall below 10.7°C.

A series of Atlantic fronts driving in from the south, dragging extremely moist air with it meant that certain parts of the UK again experienced high winds, torrential rain and flooding. For us, the heaviest rain fell early morning on the 23rd when 9.8mm fell in just 1 hour, another January record here at Askernish.

High winds and rain continued until the 28th when Gertrude arrived bringing lower temperatures, more rain, sleet and snow showers and stronger winds resulting in 2 consecutive gale days and our lowest ever January Apparent Temperature of -12.0°C on 29th.

Summary for January 2016

Temperature (°C):
Mean (1 minute)         5.9
Mean (min+max)        5.8
Mean Minimum           3.9
Mean Maximum         7.8
Minimum                     -2.2      13th
Maximum                   12.3      24th      Record High for the month of January
Highest Minimum      10.7       24th      Record High for the month of January
Lowest Maximum        3.9      13th
Air frosts    2

Rainfall (mm):
Total for month        149.8
Wettest day              17.2      22nd
High rain rate            71.6      22nd
Rain days                  28
Days >= 2.0mm        22
Days >= 10.0mm        4
Days>= 20.0mm         0
Dry days             3

Wind (mph):
Highest Gust              66.0      28th
Average Speed       14.4
Wind Run             10709.0 miles
Gale days          2
Predominant wind direction SSE

Pressure (mb):
Maximum            1030.21      15th
Minimum               969.63      10th

Days with snow falling                 1
Days with snow lying at 0900      0

Total hours of sunshine          22.9      Record Low for the month of January
No. of Sunshine Days              18
Sunniest Day    15th           4.0 hours     Our Sunniest January day ever

2015 – Summary

With El Niño conditions developing very early in the year, it was almost certain that it would influence the weather, but it is never easy to say how or what its influence might be here in the Northern Hemisphere. As most weather models suggest when El Niño conditions exist, 2015 experienced the full range of extreme weather events around the world, most notably it being, globally, the warmest year ever with 2016 forecast to be warmer still! Whether this was entirely due to El Niño or by man-made influences is a continuing debate, but man-made global warming is now being thought of as the prime influence. Whether you are a believer in global warming or not, with these conditions continuing, they are set to influence our weather into next year.

Rising temperatures was a phenomenon that passed us by here in Askernish. For us, 2015 was our windiest, wettest and dullest year. As the year progressed, a full range of monthly records tumbled with the more unwelcome easily outnumbering the more pleasant ones being broken. This contrast was best highlighted by the months of June which was our windiest, wettest, coldest and dullest on record compared with October which was our warmest. August was our driest but perversely had the most rain days to be recorded during that month. New monthly atmospheric pressure records both high and low also occurred throughout the year. These often pass unnoticed and are of little concern to most observers, but they too are an indication of changing weather patterns.

The persistent wind is what most people will remember about 2015. This awareness was heightened with the occurrence of another explosive cyclogenesis or “weather bomb” in December, and then the Met Office personalising the storms by naming them for the first time later in the year. What followed that decision was Abigail, Barney, Clodagh, Desmond, Eva and Frank, all of which occurred during the final two months of the year. All these storms resulted in strong winds and heavy rain ensuring that this was our windiest and wettest year.

Six of the twelve months, January, March, May, June, July and November were our windiest ever with these months experiencing their own record high wind speeds and wind gusts. There were 9 gale days during the year which is yet another record here at Askernish. There were 3 in January, 2 in March, our first ever in November and 3 in December, all of which (apart from December) are records for this station. The average wind speed for 2015 was 11.9 mph which produced a wind run in excess of 100,000 miles for the year for the very first time.

One exceptional respite from the winds occurred in October when the remnants of Hurricane Joaquin passed further south than expected and left us eerily becalmed for three days. During this period, with an average wind speed of 0.6 mph and a wind run of just 14.0 miles, the 16th October became our calmest ever day!

With the winds came the rain with March, June and July being our wettest on record. In total, 1152.2 mm of rain fell during the year on 291 rain days exceeding our previous record by 30.8mm set only last year. Again in complete contrast the months of October and August were the driest ever here in Askernish but there were 28 days in August when rain fell, a record high for that month. Another milestone occurred on the 14th December when no rain fell on that day making it our first dry December day since 26th December 2012!

With wind and rain, there is always the associated cloud which seemed to shroud our islands for long periods during the year. It was therefore no surprise that 2015 was our dullest year with the months of June, July, October and November setting their own records by being our dullest. In February there were 5 consecutive days when NO sunshine was recorded, yetanother station record. One bright spot, literally and contrary to the gloom, May was oursunniest on record.

Globally, 2015 was the warmest year ever but not here. January, May, June and July were our coldest ever and only October and December broke any records, both being our warmest. There
were only 4 days during the year when the temperature reached 20°C and 61 when it exceeded 15°C, the latter being the lowest ever recorded in a year. There were 7 days when snow fell during the year, a record annual high.

A summary of each and every month plus the four seasons precede this post on the blog.

Statistical Summary – 2015

Temperature (°C):
Mean (1 minute)         9.3
Mean (min+max)        9.3
Mean Minimum           6.8
Mean Maximum        11.7
Minimum                     -3.3       18th Jan
Maximum                    24.7      23rd Aug
Highest Minimum       13.5       30th Jun          Lowest recorded in a year
Lowest Maximum        2.8          3rd Feb
Days above  20˚C          4
Days above  15˚C        61                                 Lowest annual total
Days below  0˚C           11
Days below  -5˚C           0
Air frosts                         10

Rainfall (mm):
Total for year           1152.2                              Highest annual rainfall
Wettest day                22.6     5th May
High rain rate              67.0     9th Dec
Rain days                     291                              Highest number recorded in a year
Days >= 2.0mm            167                              Highest number recorded in a year
Days >= 10.0mm            26
Days>= 20.0mm               2
Dry days                         74                              Lowest number recorded in a year

Wind (mph):
Highest Gust                 76.0      8th Jan
Average Speed           11.9                            Highest annual average wind speed
Wind Run             105417.9 miles                   Highest annual wind run
Gale days                  9                                   Highest number recorded in a year

Pressure (mb):
Maximum             1043.65         7th Feb
Minimum                947.68        14th Jan

Days with snow falling                  7               Highest number recorded in a year
Days with snow lying at 0900      4

Total hours of sunshine           1011.0            Lowest annual total
Sunshine days                           265