May 2023 was warmer than average (12.44°C versus an average of 11.48), drier than average (25.60 mm versus an average total of 43.11) and calmer than average (a wind run of 1601 miles versus an average of 2611).
The highest temperature in the month was 23.3°C recorded at 18:48 on the 27th with the lowest temperature being 4.9°C at 05:14 on the 3rd. The average temperature in the month was 12.4°C, 0.8°C above the mean. The average daily high temperature was 17.3°C, 1.2°C above the mean, and the average daily low temperature was 8.0°C, 0.8°C above the mean.
The warmest day was the 7th with an average temperature of 15.4°C. The coldest day was the 3rd with an average temperature of 9.2°C. There were no frost days.The average wind chill was 12.3°C, 0.6°C above the mean.. The highest wind chill was 23.3°C recorded at 18:48 on the 27th, with the lowest wind chill being 3.4°C at 03:14 on the 4th.The maximum dew point was 14.6°C recorded at 13:19 on the 28th, with the average dew point being 8.9°C. The lowest dew point was 3.5°C recorded at 05:14 on the 3rd. There were 234.5 hours of sunshine, with the sunniest day being the 24th with 11.5 hours.
Rainfall in the month was 25.6 millimetres, all of which fell in the first 11 days of the month. This was 16.0 millimetres below the month average. The highest rain rate was 39.4 millimetres per hour recorded at 12:38 on the 5th. The wettest day was the 11th with 7.2 millimetres. There was no snow recorded in the month. The total yearly rainfall was 229.0 millimetres, 105% of the average at the end of May.
The highest barometric pressure was 1031.8 millibars recorded at 08:17 on the 26th. The lowest barometric pressure was 1006.5 millibars at 18:28 on the 9th. The average pressure in the month was 1021.8 millibars. The highest humidity was 97% and the monthly average humidity was 80%. The lowest humidity was 40% at 17:02 on the 27th.
Wind speeds were below average, with the highest wind gust speed of 28 mph being reccorded at 14:08 on the 4th. The maximum wind speed was 12 mph at 15:39 on the 4th. The wind run was 2558.9 miles, well below the average of 1600.7 miles, 1143 miles below the average and a low for May. The average gust speed in the month was 3.8 mph, and the average wind speed was 2.2 mph. The predominant direction was south south-easterly (157°).
The maximum high solar radiation recorded at 12:00 on the 2nd was 1178 w/m². The average solar radiation for the month was 201 w/m². The highest U.V. Index was 5.8 recorded at 13:05 on the 25th..