December 2019 weather data

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December 2019 had expected temperatures overall but was wetter than average at the same time. The average maximum temperature of 8.3°C was 0.1°C below the Usk average for December of 8.4°C. The maximum temperature exceeded 10°C on 7 days and there were only 2 days of air frost too.

There were 9 days when no significant rain was recorded (<0.2 mm); the total rainfall was 150.4 mm, was 23% above the Usk* average for December of 121.9 mm.

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

Day by day data for December are given below:-


                   MONTHLY CLIMATOLOGICAL SUMMARY for DEC. 2019

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   2.2   4.9   14:00  -1.8   22:30  16.1   0.0   0.0   2.1  17.7    4:00   ENE
 2   2.5   6.1   13:30  -1.8    6:30  15.8   0.0   0.2   0.0   3.2    4:00    SE
 3   5.1   8.1   13:00   2.2   21:00  13.2   0.0   0.0   0.0   9.7   13:00    SE
 4   3.3   7.4   13:00   0.7    8:00  15.0   0.0   0.2   0.0   6.4   13:30    SE
 5   6.7  10.2   00:00   2.6    7:00  11.6   0.0   0.6   1.3  24.1   18:30    SE
 6   9.8  11.3   10:00   7.7   00:00   8.4   0.0   5.0   1.6  29.0   11:00    SE
 7   8.6  10.1   12:30   7.4    6:00   9.7   0.0   0.8   1.4  24.1   00:00    SE
 8   7.7  11.2    3:00   5.1   23:00  10.6   0.0   8.8   2.3  27.4    0:30    SE
 9   5.8   8.6    4:00   1.2   23:00  12.5   0.0   1.6   1.6  35.4    4:30   ENE
10   7.6  11.7   17:00   3.5    0:30  10.7   0.0   8.8   4.2  37.0   16:30   SSE
11   3.3   5.5   10:30   0.9   21:30  15.0   0.0   4.6   0.2  16.1   12:30    SE
12   5.7   8.7   12:30   0.9    1:00  12.6   0.0  14.8   1.6  19.3    8:30   SSE
13   5.4   7.0   12:30   3.1   00:00  12.9   0.0   3.6   1.6  40.2    1:00    SE
14   5.1   7.1   19:30   2.9    0:30  13.3   0.0   8.2   2.3  35.4   19:30    SE
15   4.7   6.3   14:30   2.8    3:00  13.6   0.0   8.2   1.4  30.6   18:30   SSE
16   4.2   6.5   13:30   2.2   19:30  14.1   0.0   0.6   0.2  14.5    3:30    SE
17   2.7   4.8   14:30   0.6   19:30  15.6   0.0   0.4   0.0   1.6   11:30    SE
18   5.7  10.5   00:00   1.0    7:30  12.6   0.0  19.6   4.5  30.6   19:30   SSE
19   9.7  10.9    6:30   7.9   18:00   8.6   0.0  30.0   4.5  25.7    6:30   SSE
20   6.2   8.5    0:30   3.7   18:30  12.1   0.0   8.4   0.3  14.5    1:00   SSE
21   6.5   8.1   13:00   4.8    2:30  11.8   0.0  11.0   1.6  16.1   19:30   SSE
22   6.2   8.1   13:00   4.5    8:30  12.1   0.0   3.2   0.2  14.5    1:00   ESE
23   7.2   8.9   13:30   5.6    0:30  11.2   0.0   1.6   0.8  14.5    4:00    SE
24   7.9   9.5   12:30   6.0    0:30  10.4   0.0   5.6   1.0  14.5    9:00    SE
25   4.3   6.9   13:00   2.5    8:30  14.0   0.0   0.2   0.5  17.7   00:00   SSE
26   6.1   7.5   20:00   3.6    1:30  12.2   0.0   3.2   2.1  29.0    8:00   SSE
27   6.7   8.4   21:00   4.7    1:00  11.6   0.0   0.8   0.0   6.4   10:00   SSE
28   8.3   9.3   14:00   6.9    8:30  10.0   0.0   0.0   0.5  14.5   18:00   SSE
29   7.0   8.1    0:30   6.0   18:00  11.3   0.0   0.2   0.8  16.1    7:00   SSE
30   5.8   9.2   14:30   3.3   21:30  12.5   0.0   0.2   0.3  12.9    1:00    SE
31   7.0   7.7   18:30   3.9    0:30  11.3   0.0   0.0   1.3  16.1   11:00    NE
-------------------------------------------------------------------------------------
     6.0  11.7    10    -1.8     2   382.5   0.0 150.4   1.3  40.2    13     SSE

Max >=  32.0:  0
Max <=   0.0:  0
Min <=   0.0:  2
Min <= -18.0:  0
Max Rain: 30.00 ON 19/12/19
Days of Rain: 27 (> .2 mm) 15 (> 2 mm) 1 (> 20 mm)
Heat Base:  18.3  Cool Base:  18.3  Method: Integration