January 2018 was a little below normal as far as temperature and rainfall were concerned and the average maximum temperature of 7.8°C was 0.3°C below the Usk average for January of 8.1°C. The minimum temperature sank below 0°C on five days. The warmest days were the 2nd and 28th (max = 11.6°C) and the coldest was the 8th with a low of -1.3°C.
The measured rainfall was 89.0 mm, 70% of the Usk* average for January of 127.6 mm. Rain was measured on 20 days in the month, the wettest being the 24th when 15.2 mm fell.
* Usk is the nearest Met Office station for which long term averages (1981-2010) are available.
Day by day data for January are given below:-
MONTHLY CLIMATOLOGICAL SUMMARY for JAN. 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
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1 5.3 6.9 15:30 4.0 3:30 13.0 0.0 2.8 1.9 19.3 15:30 W
2 7.1 11.6 21:30 3.2 1:30 11.3 0.0 7.2 2.3 25.7 23:30 W
3 7.3 8.8 14:30 5.5 3:30 11.1 0.0 0.8 3.7 32.2 1:30 W
4 6.8 10.3 10:00 3.2 22:30 11.6 0.0 3.8 2.4 27.4 13:30 W
5 3.8 6.3 10:30 0.5 21:30 14.6 0.0 3.6 1.1 24.1 8:30 W
6 1.6 3.6 16:00 -0.1 4:30 16.7 0.0 0.4 0.6 20.9 18:00 ENE
7 1.0 3.8 12:30 -1.1 23:00 17.3 0.0 0.2 2.3 24.1 8:30 ENE
8 0.5 1.8 00:00 -1.3 2:00 17.8 0.0 0.2 0.5 12.9 1:00 ENE
9 3.5 7.4 00:00 1.4 7:30 14.8 0.0 2.8 2.7 17.7 20:00 ENE
10 4.9 8.6 10:30 1.4 00:00 13.4 0.0 5.2 0.0 9.7 0:30 WNW
11 2.7 5.9 14:00 0.4 00:00 15.6 0.0 0.0 0.0 4.8 5:00 E
12 3.0 5.3 20:30 -0.1 6:00 15.3 0.0 0.2 1.4 19.3 22:30 SE
13 4.7 6.1 14:00 3.9 7:30 13.6 0.0 0.0 4.5 20.9 8:30 SE
14 3.3 5.4 00:00 2.4 18:30 15.0 0.0 0.0 1.6 22.5 23:30 SE
15 7.0 9.3 10:30 4.6 23:00 11.3 0.0 6.4 2.7 27.4 3:30 W
16 3.4 5.7 12:00 0.6 00:00 14.9 0.0 1.6 2.3 24.1 22:30 W
17 4.2 8.8 00:00 0.7 0:30 14.1 0.0 4.4 3.2 24.1 21:30 W
18 5.3 9.4 2:30 1.2 00:00 13.1 0.0 0.4 2.4 32.2 5:00 W
19 2.8 6.1 13:00 0.2 6:30 15.6 0.0 0.0 1.0 17.7 14:30 W
20 2.7 4.8 13:00 0.8 00:00 15.6 0.0 3.2 0.2 8.0 18:00 ENE
21 4.5 9.9 20:00 0.5 1:30 13.8 0.0 14.0 1.6 17.7 9:30 SE
22 7.2 8.6 14:00 6.0 7:30 11.1 0.0 0.0 0.3 12.9 15:00 W
23 9.4 11.1 15:00 7.1 1:30 8.9 0.0 4.0 3.9 27.4 11:30 W
24 7.6 11.3 8:30 4.3 20:00 10.8 0.0 15.2 3.5 29.0 8:30 W
25 5.2 7.8 14:00 3.5 22:30 13.2 0.0 8.2 1.8 22.5 2:00 W
26 4.1 7.1 15:00 2.6 2:30 14.3 0.0 0.2 0.2 6.4 13:00 ESE
27 7.4 10.3 20:00 3.9 0:30 10.9 0.0 2.8 2.4 24.1 8:00 W
28 9.8 11.6 12:30 8.3 1:30 8.6 0.0 0.0 1.8 19.3 20:00 W
29 7.2 10.5 10:30 0.8 00:00 11.2 0.0 0.2 1.8 20.9 10:00 W
30 4.0 8.3 23:00 -0.3 6:30 14.3 0.0 0.6 0.8 16.1 22:00 SE
31 4.9 7.9 0:30 2.3 21:00 13.4 0.0 0.6 2.3 19.3 19:30 W
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4.9 11.6 2 -1.3 8 416.2 0.0 89.0 1.8 32.2 3 W
Max >= 32.0: 0
Max <= 0.0: 0
Min <= 0.0: 5
Min <= -18.0: 0
Max Rain: 15.19 ON 24/01/18
Days of Rain: 25 (> .2 mm) 14 (> 2 mm) 0 (> 20 mm)
Heat Base: 18.3 Cool Base: 18.3 Method: Integration