November Weather 2015

This November has been remarkably mild in Horley, apart from a brief, but significant cold snap.

Through almost all of the month, the jet stream flowed west-east driving a sequence of depressions off the Atlantic, bringing mild temperatures with regular rain and some windy times as fronts came through. there were a couple of genuinely windy spells with a force 7 (near gale) on 21, the strongest sustained wind recorded here in the last two years. This was a northerly, combined with low temperatures, so it felt particularly bitter. There were a nine days with gusts over 30knots.

Total rainfall was 82.8mm, with some rain falling on 24 days, and significant rain on 12. There were no days with more than 20mm rain. The total rainfall was 7.5mm less than the long-term average.

The mean temperature for the month was 10.5C, no less than 3.3C above the long-term average. The maximum for the month was 16.7C on 6th, but the daily maximum was above 15C from 2nd–17th inclusive. Despite a predominantly mild picture, there was an outbreak of air from the arctic from 21st to 23rd, which saw frost each night, mean temperatures below 3C and a minimum of -4.4C on 22nd.

                                      Heat  Cool   Avg
    Mean                              Deg   Deg         Wind      
Day Temp  High   Time   Low    Time   Days  Days  Rain  Speed High
------------------------------------------------------------------
 1   8.6  11.7   14:12   5.6   02:37   9.7   0.0   0.4   0.0   3.4
 2  10.6  16.1   14:37   8.6   06:38   7.7   0.0   0.2   0.2   8.6
 3  11.1  13.7   15:29   9.2   21:50   7.2   0.0   0.2   0.0   7.0
 4  12.2  13.9   14:00   9.2   00:03   6.1   0.0   5.0   0.1  10.4
 5  14.2  15.2   11:15  13.4   00:00   4.1   0.0  15.2   3.1  29.6
 6  14.9  16.7   13:38  13.3   05:50   3.4   0.0   5.0   3.2  26.0
 7  14.6  16.5   10:17   9.3   23:57   3.7   0.0   9.6   4.6  36.6
 8  12.4  15.9   18:17   7.1   03:51   5.9   0.0   0.2   3.2  26.0
 9  12.8  15.0   12:42   8.8   06:08   5.5   0.0   0.0   4.2  33.0
10  14.2  15.3   11:39  13.3   22:16   4.1   0.0   0.0   3.9  22.6
11  13.7  15.4   12:33  12.4   23:50   4.6   0.0   0.0   2.3  19.2
12  13.5  15.5   12:37  11.6   07:02   4.8   0.0   0.2   3.4  38.2
13   9.7  13.9   00:06   6.6   18:58   8.6   0.0   1.4   3.1  27.8
14  10.3  14.3   23:32   7.3   01:03   8.0   0.0  10.0   3.4  29.6
15  14.2  15.6   13:28  13.1   23:24   4.1   0.0   0.0   5.6  24.4
16  12.9  14.0   12:07  11.7   19:18   5.4   0.0   5.6   3.6  36.6
17  13.9  15.3   15:14  12.6   00:00   4.4   0.0   5.8   6.4  36.6
18  12.8  14.9   12:25  10.3   06:31   5.5   0.0   2.6   5.7  31.4
19  11.1  12.8   00:00   9.2   22:23   7.2   0.0   1.4   2.1  26.0
20   7.5   9.3   00:00   4.2   20:02  10.8   0.0   0.0   1.0  26.0
21   2.9   5.9   12:57  -2.2   23:45  15.4   0.0   2.8  12.0  45.2
22   1.0   6.4   13:31  -4.4   06:57  17.3   0.0   0.0   0.9  14.0
23   3.2   7.5   13:47  -2.2   07:04  15.1   0.0   0.6   0.1   8.6
24   8.0  10.3   08:39   5.8   20:46  10.3   0.0   8.8   2.2  19.2
25   7.6  10.3   13:14   4.4   23:55  10.7   0.0   0.2   1.7  24.4
26   8.1  10.2   13:19   4.1   01:27  10.2   0.0   1.6   0.1  12.2
27  10.2  12.2   11:10   5.4   23:58   8.1   0.0   2.6   3.9  33.0
28   6.5  10.4   21:23   1.6   07:51  11.8   0.0   0.2   3.0  27.8
29  11.4  13.2   15:37   9.5   00:13   6.9   0.0   1.0   6.1  34.8
30  11.6  13.3   21:22   9.1   04:45   6.7   0.0   2.2   4.3  26.0
------------------------------------------------------------------
    10.5  16.7     6    -4.4    22   233.3   0.0  82.8   3.5  45.2

Max >=  27.0:  0
Max <=   0.0:  0
Min <=   0.0:  3
Min <= -18.0: 0 Max Rain: 15.2 on day 5 
Days of Rain: 24 >= 0.2 mm  12 (>= 2.0 mm)  0 (>= 20.0 mm)
Heat Base: 18.3  Cool Base: 18.3  Method: Integration