April 2023 was cooler than average (8.19°C versus an average of 8.52), wetter than average (57.20 mm versus an average total of 31.11) and calmer than average (a wind run of 2559 miles versus an average of 2738).
The highest temperature in the month was 18.7°C at 15:47 on the 29th. This was the highest since October 23rd 2022 when the temperature reached 19.6°C. The lowest temperature was -1.2°C recorded at 05:59 on the 25th. The average temperature in the month was 8.2°C, 0.3°C below the mean. The average daily high temperature was 12.4°C, 0.6°C below the mean. The average daily low temperature was 4.4°C, equal to the mean.
The warmest day was the 29th and 30th with average temperatures of 12.2°C. The coldest day was the 12th with an average temperature of 5.4°C. There were 3 frost days in the month. The average wind chill was 11.9°C, 0.4°C below the mean. The highest wind chill was 18.7°C, recorded at 15:47 on the 29th, with the lowest wind chill being -1.2°C at 05:59 on the 25th. The maximum dew point was 13.2°C recorded at 14:55 on the 29th, with the low dew point being -2.6°C at 05:38 on the 25th. There were 168.2 hours of sunshine with the sunniest day being the 20th with 10.2 hours.
Rainfall in the month was 57.2 millimetres recorded on 18 days, well above the average of 33.1 millimetres. The highest rain rate was 93.6 millimetres per hour, reccorded at 13:13 on the 10th. The wettest day was the 10th when 8.4 millimetres was recorded. There was no recorded snow in the month. The total yearly rainfall was 204.0 millimetres, 121% of the mean for the end of April.
The highest barometric pressure was 1031.4 millibars recorded at 00:17 on the 3rd. The lowest barometric pressure was 981.4 millibars at 15:31 on the 12th. The average pressure in the month was 1014.7 millibars. The highest humidity was 98% and the monthly average humidity was 82%.
Wind speeds were about average, with the highest wind gust speed of 31 mph being reccorded at 10:16 on the 11th. The maximum wind speed was 17 mph at 15:48 on the 10th. The wind run was 2558.9 miles, well below the average of 2909.1 miles. The average gust speed in the month was 5.6 mph, and the average wind speed was 3.6 mph. The predominant direction was south south-easterly (155°).
The maximum high solar radiation recorded at 13:17 on the 26th was 1063 w/m². The average solar radiation for the month was 143 w/m². The highest U.V. Index was 4.6 recorded at 13:00 on the 29th.