May 2020 was the second driest month in Penallt since records began in mid-March 2011 (April 2011 was the driest with a total of 5.0 mm). The month saw only 2 days on which significant rain fell. The total rainfall of 6.2 mm was 9% of the Usk* average for May of 71.5 mm.
Maximum temperatures exceeded 20°C on 14 days with a high of 25.2°C on the 20th. May was a very warm and sunny month overall, and the average maximum temperature of 19.0°C was 1.5°C above the Usk average for May of 17.5°C.
* Usk is the nearest Met Office station for which long term averages (1981-2010) are available.
Day by day data for May are given below:-
MONTHLY CLIMATOLOGICAL SUMMARY for MAY. 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
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1 9.6 14.5 16:30 5.8 6:00 8.7 0.0 0.2 0.6 20.9 13:30 W
2 10.1 16.5 14:00 4.1 6:00 8.2 0.0 0.0 0.2 9.7 8:00 SE
3 10.4 13.1 17:00 7.8 0:30 7.8 0.0 0.2 0.5 11.3 14:30 SSE
4 11.9 16.9 13:30 7.9 5:00 6.4 0.0 0.0 3.5 22.5 18:00 NE
5 10.6 16.0 17:30 5.8 5:30 7.7 0.0 0.0 4.8 29.0 15:00 NE
6 10.8 17.9 17:30 3.4 4:30 7.5 0.0 0.0 1.0 16.1 1:30 NE
7 14.4 21.9 17:00 5.9 6:00 4.4 0.5 0.0 0.5 11.3 13:00 NE
8 16.7 22.9 18:00 9.7 6:00 2.7 1.1 0.0 0.2 9.7 15:00 SE
9 16.8 21.9 14:00 11.8 6:00 2.3 0.8 0.0 0.6 11.3 9:00 NE
10 10.7 15.8 9:00 4.1 00:00 7.6 0.0 0.0 6.0 40.2 19:30 NE
11 6.5 11.3 16:00 1.9 6:00 11.8 0.0 0.0 7.1 35.4 11:00 NE
12 8.4 15.0 16:30 -0.2 5:00 9.8 0.0 0.0 0.6 16.1 22:00 NE
13 7.4 11.2 15:00 3.7 3:00 10.9 0.0 0.0 3.1 22.5 14:00 NE
14 8.2 13.5 17:30 1.4 5:30 10.1 0.0 0.0 2.9 20.9 15:00 NE
15 10.7 16.6 17:30 4.5 4:00 7.6 0.0 0.0 0.6 17.7 21:00 NE
16 12.1 17.4 15:00 7.5 6:30 6.2 0.0 0.0 0.2 12.9 11:00 SE
17 12.5 18.6 14:30 5.7 4:30 5.8 0.0 0.0 0.2 14.5 15:00 SE
18 13.8 19.2 17:00 8.2 5:00 4.5 0.0 0.0 0.5 19.3 12:30 SE
19 16.4 23.3 16:00 10.7 00:00 3.0 1.1 0.0 0.2 11.3 17:00 SE
20 17.0 25.2 17:00 7.9 6:00 3.3 2.0 0.0 0.6 14.5 12:30 SE
21 17.6 22.9 14:30 11.2 3:30 1.9 1.2 0.2 0.5 11.3 14:00 SSE
22 13.9 16.5 15:30 10.3 00:00 4.4 0.0 1.6 2.7 24.1 17:00 SE
23 11.8 15.2 15:30 8.8 6:30 6.5 0.0 4.0 1.9 22.5 9:30 NW
24 15.1 20.6 15:30 10.0 0:30 3.6 0.4 0.0 0.5 16.1 11:00 WNW
25 15.4 22.6 16:30 5.9 5:30 4.0 1.1 0.0 0.5 14.5 14:00 SE
26 16.7 23.9 17:00 8.8 4:30 2.8 1.2 0.0 0.3 9.7 14:00 NE
27 17.6 23.5 16:30 12.7 4:00 2.0 1.3 0.0 1.0 12.9 16:30 NE
28 17.7 23.5 15:30 10.6 5:30 2.1 1.4 0.0 1.1 16.1 15:30 NE
29 17.7 23.9 17:00 10.2 5:00 2.3 1.7 0.0 1.1 16.1 17:00 SSE
30 17.6 24.2 17:30 7.9 6:00 2.3 1.7 0.0 1.6 17.7 13:30 NE
31 18.2 24.4 16:30 10.9 6:00 1.9 1.8 0.0 2.1 20.9 13:30 NE
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13.4 25.2 20 -0.2 12 170.3 17.4 6.2 1.5 40.2 10 NE
Max >= 32.0: 0
Max <= 0.0: 0
Min <= 0.0: 1
Min <= -18.0: 0
Max Rain: 3.99 ON 23/05/20
Days of Rain: 5 (> .2 mm) 1 (> 2 mm) 0 (> 20 mm)
Heat Base: 18.3 Cool Base: 18.3 Method: Integration