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