May 2018 weather data

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May 2018 saw 18 days on which no significant rain fell. Nevertheless, the total rainfall of 92.8 mm was 30% above the Usk* average for May of 71.5 mm, much of it falling on the last eight days of the month, which were unsettled and thundery at times..

Maximum temperatures exceeded 20°C on twelve days with a high of 26.5°C on the 7th. May was very warm overall as a result, and the average maximum temperature of 19.0°C was 1.5°C above the Usk average for May of 17.5°C and, in the UK overall, May 2018 was the hottest since records began.

* 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. 2018

NAME: Penallt 210   CITY:    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   8.2  13.6   11:00   1.6    4:30  10.2   0.0   2.0   2.4  19.3   11:00   ESE
 2   9.7  13.9   14:00   6.6   22:30   8.7   0.0  11.2   2.9  27.4    2:30    SE
 3  10.3  16.3   14:30   5.0    5:30   8.0   0.0   0.0   0.6  16.1   18:00   WSW
 4  12.5  15.6   17:00   8.2    1:00   5.8   0.0   0.0   0.2   8.0   10:00   ESE
 5  15.8  22.9   17:00   7.7    6:00   3.6   1.1   0.0   0.3   9.7   14:00   ESE
 6  17.4  24.0   18:00  10.1    6:00   2.6   1.6   0.0   0.8  11.3   11:30   ENE
 7  19.2  26.5   16:00  11.6    6:00   1.9   2.7   0.0   0.8  12.9   14:00   ENE
 8  13.9  19.3   13:30   9.3   00:00   4.5   0.1   0.0   0.8  11.3   11:00     W
 9  11.2  16.6   11:30   6.5    6:30   7.1   0.0   2.0   0.8  16.1   11:30   WSW
10  10.4  16.8   13:30   5.4   23:30   7.9   0.0   0.2   0.3  11.3   18:00     W
11  10.2  14.2   14:30   5.7    0:30   8.2   0.0   4.0   2.6  24.1   11:30    SE
12   9.4  14.1   15:30   4.1    4:30   8.9   0.0   0.0   0.2   6.4   11:00     E
13  12.1  19.2   14:00   5.9    3:00   6.2   0.0   0.0   0.2   8.0   18:30     E
14  13.6  21.2   15:30   5.0    5:30   5.2   0.4   0.0   0.5   8.0   15:00     E
15  16.1  23.6   15:30   8.3    6:00   3.4   1.2   0.0   0.6   8.0   21:30     E
16  12.2  14.9   15:30   8.5   00:00   6.2   0.0   0.0   0.6  16.1   17:30   ENE
17  11.3  17.6   16:00   4.9    5:30   7.0   0.0   0.0   0.6  11.3    8:00   ENE
18  12.7  19.1   13:30   5.2    5:30   5.7   0.1   0.0   0.3   9.7    0:30   ENE
19  15.2  22.2   15:30   7.7    5:30   3.8   0.7   0.0   0.2   8.0   14:30     W
20  16.0  22.4   16:30   8.6    5:30   3.3   1.0   0.0   0.6  12.9   12:30   ENE
21  16.9  24.2   15:30   9.3    5:30   2.9   1.5   3.2   0.5   9.7   21:00   ENE
22  16.4  22.3   15:00  11.2    6:30   2.8   0.9   0.0   0.6   9.7    3:30   ENE
23  14.8  21.2   17:00   9.3    6:00   3.9   0.4   0.0   0.8  12.9   14:00   ENE
24  11.4  14.2    0:30   8.8    7:30   6.9   0.0  12.6   0.2  16.1    2:00   ENE
25  12.6  13.3   15:00  11.8    9:00   5.7   0.0  18.4   0.0   8.0    7:00     E
26  15.4  21.0   17:30  12.9    0:30   3.3   0.3   0.6   0.8  20.9   20:30   ENE
27  15.7  21.6   17:30  12.0    4:00   3.0   0.4  19.8   0.2  11.3    6:30   ENE
28  16.8  19.8   18:30  14.8    2:00   1.7   0.1   0.0   0.0   4.8   12:30     E
29  15.9  19.1   15:30  13.6    7:30   2.4   0.0   0.0   0.6  12.9   12:30   ENE
30  14.3  15.4    0:30  13.3    8:30   4.1   0.0   7.2   0.0   9.7    2:00   ENE
31  17.4  22.5   13:30  14.7    0:30   1.6   0.7  11.6   0.3   9.7    9:00   ENE
-------------------------------------------------------------------------------------
    13.7  26.5     7     1.6     1   156.6  13.2  92.8   0.7  27.4     2     ENE

Max >=  32.0:  0
Max <=   0.0:  0
Min <=   0.0:  0
Min <= -18.0:  0
Max Rain: 19.81 ON 27/05/18
Days of Rain: 12 (> .2 mm) 10 (> 2 mm) 0 (> 20 mm)
Heat Base:  18.3  Cool Base:  18.3  Method: Integration