Steventon Weather

September 2021

The cool, cloudy conditions with light N–NW winds at the end of August continued into September. The maximum temperature on 1st was only 18.4℃.

The cool, cloudy conditions with light N–NW winds at the end of August continued into September. The maximum temperature on 1st was only 18.4°C.

After being overcast to start it became increasingly sunny and soon warmed up steadily rising to 26.7°C on 6th, followed by 28.7°Con 7th, the hottest day of the month (and since 22nd July), and 28.6℃ on 8th. There was 2.1mm of rain late evening of 8th, the first for 17 days, followed by 2.0mm the next day when the maximum temperature fell to 22.8°C.

Apart from 7.5mm rain overnight of 13th/14th it was dry with sunny periods until 26th. Then a depression brought some rain each day until the end of the month. Significant falls were 6.0mm on 26th and 14.5mm on 28th. The total for the month was 35.6mm, 68.8% of average and virtually the same as in 2020. For the year to date was it 494.0mm, 104.5% of average.

Mike Wilkins

25 year Rainfall averages are from 1992-2016
30 year Temperature averages are from 1981-2010

Weather Summary table for 2020 at Steventon, Oxfordshire.

30 year temperature averages for Steventon are from 1981-2010
Oxford rainfall averages are from 1992-2016

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MonthTemperature
°C
Rainfall
mm%
25yr avg.
MaxMinMonthly Average30yr
Avg.
>30yr
Avg.
 25yr
avg.
January 13.0 -1.7 9.96 4.57 2.39 66.3 66.4 99.8
February 13.2 -0.9 7.19 4.69 2.50 112.7 45.9 245.3
March 15.9 -0.5 7.60 6.86 0.74 48.9 41.9 116.6
April 24.2 0.1 11.99 9.17 2.82 47.8 53.0 90.2
May 26.2 1.6 14.69 12.64 2.05 1.4 60.2 2.3
June 31.9 7.6 17.06 15.82 1.24 65.3 47.7 136.8
July 35.2 8.9 18.09 17.91 0.18 30.4 49.8 79.1
August 34.5 10.7 19.64 17.43 2.21 101.9 56.1 181.6
September 28.6 4.8 15.69 14.50 1.19 36.1 51.8 69.8
October 17.6 6.0 11.44 10.76 0.68 170.8 70.0 244.o
November 16.5 0.2 8.88 6.94 1.94 54.5 74.9 72.7
December 13.2 -1.7 5.65 4.76 0.89 76.8 64.1 119.8
Year 35.5 -1.7 12.07 10.50 1.57 821.9 682.0 120.5

Summary data from Mike Wilkins, January 2021