July 2021 was.warmer than average (17.57°C versus an average of 16.36), wetter than average (71.20 mm versus an average total of 48.04) and calmer than average (a wind run of 1173 miles versus an average of 2079). The month saw high temperatures which tailed off in the final week. Winds were some of the lightest ever recorded here.
The highest temperature in the month was 31.1°C, the highest temperature since 32.0°C was recorded on August 12th 2020.The minimum temperature was 7.8°C, recorded at 05:00 on the first day of the month.The average temperature in the month was 17.6°C, 1.0°C higher than the mean. The average daily high temperature was 23.2°C, 1.8°C above the mean. The average daily low temperature was 13.1°C, 1.0°C above the mean.
The warmest day was the 18th with an average temperature of 22.6°C, while the coldest day was the 30th with an average temperature of 13.6°C. There was no frost days in the month The sunniest day was the 14th with 10.9 hours of sun. There were 209.8 hours of sun in the month, 9.9 hours below the mean.
Rainfall in the month was 71.2 millimetres recorded on 16 days, 19.9 millimetres above the monthly mean. The yearly total was 373.6 millimetres, 119% of the average for the end of July. The wettest day was the 30th with 13.6 millimetres. The highest rain rate of 217.4millimetres per hour was recorded at 18:32 on the 4th, the highest since 268.0 millimetres per hour was recorded on 17th June 2020.. There was no snow recorded in the month.
The highest barometric pressure of 1028.4 millibars was at 09:01 on the 17th. The lowest pressure was 991.2 millibars at 06:11 on the 6th. The average pressure in the month was 1012.9 millibars. The highest humidity was 98% and the monthly average humidity was 82%. The lowest humidity was 38% at 18:28 on the 1st.
Wind speeds were much lower than average, with the highest wind gust speed of 22 mph being recorded at 12:12 on the 29th. The maximum wind speed was 11 mph at 10:04 on the 29th. The wind run was 1172.8 miles, 1036.8 miles below the average for the month. The average gust speed in the month was 2.7 mph, and the average wind speed was 1.6 mph, both lows for the month. The predominant direction was southerly (174°)..
The maximum high solar radiation recorded at 11:10 on the 7th was 1208 w/m².. The average solar radiation for the month was 181 w/m². The highest U.V. Index was 6.4 recorded at 13:28 on the 15th.