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Report for 2021 Dec
                   Monthly Climatological Summary for Dec 2021

Name: CM2Weather   City: Chelmsford   State: Essex
Elevation: 66 m  Lat: N 51 42' 38"   Lon: E 000 28' 14"

                  Temperature (C), Rain (mm), Wind Speed (mph)

                                      Heat  Cool        Avg
    Mean                              Deg   Deg         Wind                 Dom
Day Temp  High   Time   Low    Time   Days  Days  Rain  Speed High   Time    Dir
----------------------------------------------------------------------------------
01   7.8  11.2   00:51   2.4   23:52   4.2   0.0   1.0   1.2  20.0   19:02   WNW
02   2.3   4.9   14:11   0.4   21:15   9.7   0.0   0.0   0.9  13.0   14:04    NW
03   5.7   8.8   13:45   1.4   00:00   6.3   0.0   0.2   0.6  10.0   05:38    SW
04   5.5   7.5   14:31   2.8   01:39   6.5   0.0   1.6   0.6  15.0   17:59     W
05   5.1   7.0   14:11   3.3   23:49   6.9   0.0   5.2   1.3  16.0   06:20   NNW
06   4.2   6.2   15:45   2.4   05:47   7.8   0.0   2.4   0.2  10.0   19:06   WSW
07   4.6   7.7   17:02   1.8   04:02   7.4   0.0   3.4   0.5  12.0   12:09   SSW
08   6.6   8.2   11:52   5.4   07:48   5.4   0.0   0.2   1.5  19.0   06:10    SW
09   5.9   7.7   14:13   3.4   07:41   6.1   0.0   2.0   0.9  10.0   13:42    SW
10   5.6   7.6   02:08   2.9   23:53   6.4   0.0   2.6   1.2  18.0   03:41    NW
11   5.9  10.6   23:57   2.3   03:11   6.1   0.0   0.8   0.8   8.0   20:03    SW
12  12.0  13.3   11:58  10.6   00:00   0.3   0.0   0.6   2.0  14.0   17:13    SW
13  10.8  12.0   12:42   9.4   22:59   1.2   0.0   0.0   3.5  19.0   11:26   SSW
14  11.0  13.2   12:34   9.3   01:34   1.2   0.0   0.0   2.6  13.0   12:10    SW
15  11.6  12.7   13:15  10.1   04:45   0.5   0.0   0.0   1.7  12.0   06:31   WSW
16  10.9  12.1   14:03   9.9   21:53   1.1   0.0   0.0   0.1   6.0   12:36    NW
17   7.6   9.9   00:00   5.2   07:55   4.4   0.0   0.2   1.7  15.0   21:12   ENE
18   7.9   8.4   13:14   6.7   23:06   4.1   0.0   1.0   2.2  13.0   01:11   ENE
19   5.1   6.8   00:00   3.7   14:53   6.9   0.0   0.4   1.3   9.0   22:48     N
20   6.0   7.2   13:41   5.1   23:21   6.0   0.0   0.2   1.3  10.0   07:09    NE
21   4.1   6.2   13:29  -1.1   23:31   7.9   0.0   0.2   0.3   7.0   16:35    NE
22   1.3   3.7   14:59  -2.1   08:13  10.7   0.0   0.0   0.4   9.0   16:16   SSE
23   7.8  11.0   20:22   3.2   00:00   4.2   0.0   0.0   2.5  14.0   14:28    SW
24   8.3   9.9   14:19   6.8   03:23   3.7   0.0   8.2   1.1  10.0   00:00   SSW
25   6.3   8.2   00:00   4.9   23:24   5.7   0.0   3.2   4.4  17.0   08:24   ENE
26   6.7   8.4   21:59   4.9   00:30   5.3   0.0   5.0   1.6  15.0   00:34   ESE
27   8.8  10.2   19:09   7.4   03:53   3.2   0.0   2.2   1.5  11.0   13:36   SSE
28   9.7  10.4   05:11   8.8   09:09   2.3   0.0   0.8   4.3  36.0   08:17   WSW
29  10.8  14.4   14:20   7.7   05:21   1.7   0.0   0.8   3.7  25.0   15:46    SW
30  14.3  14.9   15:13  13.4   00:00   1.6   0.0   0.0   7.1  25.0   18:51    SW
31  13.6  14.9   13:13  12.3   22:17   4.7   0.0   0.0   5.5  21.0   08:57    SW
----------------------------------------------------------------------------------
     7.5  14.9    30    -2.1    22   149.5   0.0  42.2   1.9  36.0    28      SW

Max >=  35.7  0
Max <=  33.6 31
Min <= -20.6  0
Min <= -18.0  0
Max Rain: 8.2 on day 24
Days of Rain: 22 (>= 0.2 mm)  9 (>= 2.0 mm)  0 (>= 20.0 mm)
Heat Base: 18.3  Cool Base: 18.3  Method: Integration