September 2020 weather data

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September 2020 was settled for the most part with nearly three weeks of dry weather which broke on the 23rd with much cooler and wetter conditions. It was dry overall, the total rainfall being 39.0 mm, only 48% of the Usk* average for September of 81.2 mm. There were 21 days of rainfall of 0.2 mm or below. The wettest day was the 24th, when 14.6 mm fell.

The month was a little cooler than average, with the mean maximum temperature of 18.7 °C being 0.5 °C below the Usk average for September of 19.2 °C. The highest was 25.9 °C on the 14th and the lowest of 12.1 °C occurred on the 24th. The temperature exceeded 20 °C on 9 occasions.

* Usk is the nearest Met Office station for which long term averages (1981-2010) are available.

Day by day data for September are given below:-

                   MONTHLY CLIMATOLOGICAL SUMMARY for SEP. 2020

NAME: Penallt210   CITY: Penallt   STATE:  
ELEV:   210 m  LAT:  51° 48' 00" N  LONG:   2° 42' 00" W

                   TEMPERATURE (°C), RAIN  (mm), WIND SPEED (km/hr)

                                      HEAT  COOL        AVG
    MEAN                              DEG   DEG         WIND                 DOM
DAY TEMP  HIGH   TIME   LOW    TIME   DAYS  DAYS  RAIN  SPEED HIGH   TIME    DIR
------------------------------------------------------------------------------------
 1  13.3  19.6   14:00   8.2    2:00   5.0   0.1   0.0   0.3   8.0   13:00   SSE
 2  14.1  16.6   10:00   9.8    7:00   4.2   0.0   4.8   1.4  20.9   00:00    SE
 3  16.2  18.7   16:00  12.3   00:00   2.1   0.0   0.8   1.4  19.3    1:30    SE
 4  13.2  17.8   14:00  10.0    6:00   5.1   0.0   0.0   0.3   9.7   13:00    SW
 5  13.1  18.6   15:30   8.9    4:30   5.2   0.0   0.0   0.6  12.9   17:00   WSW
 6  14.1  19.6   15:30  10.2    6:00   4.3   0.0   0.4   0.0   8.0   19:00    SE
 7  13.9  16.6   13:30   9.1    7:00   4.4   0.0   0.6   1.0  14.5   13:30    SE
 8  17.6  22.6   12:30  13.2   00:00   1.6   0.9   0.0   1.0  11.3    7:30    SE
 9  15.9  20.8   16:30  10.7   00:00   2.8   0.4   0.0   0.6  11.3   18:00   WSW
10  12.8  17.1   12:30   8.1    7:00   5.4   0.0   0.0   0.0   8.0   10:30   WSW
11  12.8  16.8   17:00   8.1    4:00   5.4   0.0   0.0   0.6  14.5   18:30    SE
12  15.0  19.2   15:30  12.2    7:30   3.4   0.1   0.2   1.0  12.9   16:30    SE
13  16.7  21.6   16:00  13.1    0:30   2.3   0.7   0.0   1.4  16.1    1:00    SE
14  17.3  25.9   16:30   9.9    6:00   2.9   2.0   0.2   0.6  11.3   13:00   SSE
15  19.0  25.4   13:30  14.1    4:30   1.3   2.0   0.0   0.0   6.4   15:00    SW
16  17.8  23.9   16:00  14.1    7:00   1.7   1.2   0.0   2.9  20.9   21:30    NE
17  15.1  19.3   16:30  11.7    7:30   3.3   0.1   0.0   4.0  19.3   14:00    NE
18  13.7  18.9   15:30   9.2    7:00   4.7   0.0   0.0   4.8  20.9   11:00    NE
19  14.8  20.0   15:30  10.9    2:00   3.7   0.2   0.0   6.0  24.1   14:00    NE
20  15.2  19.6   15:30  12.4    3:30   3.3   0.2   0.0   3.7  22.5    1:00    NE
21  15.7  23.3   16:30   9.6    6:30   3.5   0.9   0.0   0.3   6.4   14:00    NE
22  15.4  20.1   13:00  12.3    7:30   3.0   0.1   0.0   0.8  12.9   14:00    SE
23  12.8  16.1   15:00   6.5   00:00   5.5   0.0   7.2   0.6  14.5    7:30    SE
24   8.4  12.1   14:30   5.6    1:30   9.8   0.0  14.6   1.3  19.3    6:00    SE
25   9.4  14.1   16:30   5.7    4:30   8.9   0.0   0.2   2.3  29.0   14:00    SE
26   8.8  12.6   15:00   4.6    5:30   9.5   0.0   0.0   2.4  24.1   14:30    NE
27   9.4  15.3   16:30   5.7   00:00   8.8   0.0   0.0   2.1  22.5   12:30    NE
28  11.3  17.0   16:30   3.6    4:30   7.0   0.0   0.4   0.2  11.3   16:30    SE
29  12.6  16.5   13:00   7.6   00:00   5.7   0.0   0.4   0.2   8.0    1:00    SE
30  11.5  14.1   12:00   7.3    0:30   6.8   0.0   9.2   2.6  25.7   16:00    SE
-------------------------------------------------------------------------------------
    13.9  25.9    14     3.6    28   140.7   8.9  39.0   1.5  29.0    25      SE

Max >=  32.0:  0
Max <=   0.0:  0
Min <=   0.0:  0
Min <= -18.0:  0
Max Rain: 14.60 ON 24/09/20
Days of Rain: 12 (> .2 mm) 4 (> 2 mm) 0 (> 20 mm)
Heat Base:  18.3  Cool Base:  18.3  Method: Integration