MONTHLY CLIMATOLOGICAL SUMMARY for Sep 2025 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 15.6 20.7 12:19 13.3 01:21 2.8 0.0 2.8 2.9 18.0 12:39 187 02 15.8 19.7 15:10 11.3 06:35 2.6 0.0 0.2 2.2 16.0 16:19 141 03 17.3 21.1 12:30 14.8 23:57 1.0 0.0 23.6 4.0 28.0 15:04 206 04 15.5 19.1 14:28 12.7 05:58 2.9 0.0 0.6 3.7 24.0 16:27 220 05 16.5 22.0 16:20 12.2 06:24 1.9 0.0 0.0 3.7 13.0 00:44 242 06 17.5 23.8 14:10 12.6 06:10 0.8 0.0 0.0 3.4 21.0 15:55 103 07 20.2 26.1 14:15 15.5 06:31 0.0 1.9 0.0 4.5 20.0 11:42 122 08 16.8 21.8 14:55 12.8 06:42 1.5 0.0 0.0 2.9 16.0 14:17 231 09 15.1 21.8 14:25 10.1 06:42 3.2 0.0 0.6 1.3 12.0 16:42 150 10 15.7 19.9 15:11 13.4 03:34 2.7 0.0 2.2 3.4 19.0 10:03 133 11 13.6 18.1 13:28 11.3 06:16 4.7 0.0 4.8 5.0 32.0 13:43 224 12 13.0 17.4 13:16 9.6 06:50 5.3 0.0 1.8 4.1 24.0 14:30 217 13 13.4 18.6 12:51 10.6 03:05 4.9 0.0 0.2 3.4 24.0 16:51 213 14 13.3 17.2 21:12 8.7 07:01 5.0 0.0 3.4 3.2 19.0 20:36 174 15 15.8 18.7 15:23 13.9 06:09 2.5 0.0 0.2 11.3 35.0 12:53 231 16 12.9 14.3 00:00 12.2 06:25 5.5 0.0 0.0 9.9 26.0 00:06 230 17 18 19 20 21 22 23 24 25 26 27 28 29 30 --------------------------------------------------------------------------------------- 15.6 26.1 07 8.7 14 47.3 1.9 40.4 4.1 35.0 15 205