MONTHLY CLIMATOLOGICAL SUMMARY for Sep 2026


NAME: Royston, Hertfordshire                  
ELEV: 80 meters    LAT: 52-03.15 N    LONG: 000-01.35 W


                   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   17.5   23.0  15:25   12.4  06:45    0.9    0.0    0.0    4.5   18.0  12:09    252
 02   17.8   21.3  16:27   15.3  03:21    0.6    0.0    0.0    3.7   19.0  16:37    227
 03   21.0   25.5  17:22   18.0  06:05    0.0    2.6    0.0    7.6   25.0  15:32    248
 04   18.2   20.2  06:29   14.6  23:54    0.1    0.0    3.8    7.6   28.0  08:40    254
 05   16.9   22.7  16:50   12.6  06:51    1.4    0.0    0.0    4.8   18.0  09:05    260
 06   20.0   28.7  16:17   14.1  07:08    0.0    1.6    0.0    2.2   14.0  12:24    188
 07   19.7   24.5  14:48   16.7  03:28    0.0    1.3    0.0    5.1   21.0  14:54    246
 08   14.8   16.9  00:00   13.0  23:35    3.6    0.0   13.6    4.2   19.0  17:52    253
 09   14.8   18.3  15:54   11.3  07:05    3.5    0.0    0.0    4.7   17.0  10:58    271
 10   16.4   20.9  15:50   12.3  06:27    2.0    0.0    0.4    2.9   18.0  14:44    223
 11   15.8   18.7  11:00   14.8  06:39    2.5    0.0    0.0    3.9   17.0  00:01    247
 12
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---------------------------------------------------------------------------------------
      17.6   28.7     06   11.3     09   14.5    5.6   17.8    4.7   28.0     04    248