MONTHLY CLIMATOLOGICAL SUMMARY for Dec 2025 NAME: Rideau Glen, Ontario ELEV: 85 meters LAT: 45-17.87 N LONG: 075-41.99 W TEMPERATURE (°C), RAIN (mm), WIND SPEED (km/h) HEAT COOL AVG MEAN DEG DEG WIND DOM DAY TEMP HIGH TIME LOW TIME DAYS DAYS RAIN SPEED HIGH TIME DIR --------------------------------------------------------------------------------------- 01 -7.6 -0.6 00:00 -11.6 19:37 25.9 0.0 0.0 5.3 37.0 01:24 273 02 -8.2 -3.4 14:46 -13.2 23:58 26.5 0.0 0.0 3.3 14.5 02:50 92 03 -5.3 1.5 18:39 -14.4 02:11 23.7 0.0 0.0 4.1 32.2 21:41 230 04 -9.8 -0.4 00:00 -17.3 23:58 28.2 0.0 0.0 8.0 45.1 13:26 270 05 -13.1 -7.3 23:52 -20.5 03:01 31.4 0.0 0.0 3.1 16.1 10:36 82 06 -2.8 0.8 15:29 -7.9 23:53 21.1 0.0 0.0 5.5 32.2 18:19 353 07 -10.2 -7.9 00:00 -13.3 21:47 28.5 0.0 0.0 2.4 19.3 23:56 85 08 -15.6 -10.4 00:00 -21.8 23:46 33.9 0.0 0.0 2.8 25.7 00:08 266 09 -14.9 -5.6 23:58 -22.9 05:16 33.2 0.0 0.0 3.9 19.3 13:28 101 10 -4.6 -3.4 20:46 -6.4 04:59 22.9 0.0 0.0 2.8 20.9 23:47 41 11 -9.5 -4.6 00:03 -11.8 08:15 27.8 0.0 0.0 12.4 48.3 13:10 273 12 -9.9 -5.2 14:12 -17.2 23:54 28.2 0.0 0.0 7.4 32.2 06:55 268 13 -7.9 -0.8 15:10 -18.3 01:34 26.3 0.0 0.0 3.3 41.8 15:58 230 14 -11.1 -7.3 00:46 -14.9 23:55 29.5 0.0 0.0 5.1 29.0 18:29 274 15 -9.8 -5.4 23:51 -16.2 01:28 28.1 0.0 0.0 4.2 17.7 08:10 236 16 -3.8 -1.4 13:24 -6.0 06:48 22.1 0.0 0.0 5.9 33.8 19:45 220 17 0.8 3.7 14:32 -5.2 23:35 17.6 0.0 0.2 7.7 37.0 17:01 210 18 -0.3 6.6 22:58 -10.2 03:01 18.7 0.0 0.2 4.1 25.7 19:45 15 19 3.7 10.8 09:15 -6.2 23:59 14.6 0.0 6.8 11.7 54.7 18:07 303 20 -5.9 0.3 23:59 -10.1 07:47 24.2 0.0 0.0 8.2 43.5 00:01 175 21 -4.1 2.8 03:53 -11.7 23:49 22.4 0.0 0.0 11.8 54.7 05:27 267 22 -8.3 -5.3 14:01 -12.9 05:04 26.6 0.0 0.0 2.1 17.7 10:11 231 23 -6.3 -4.7 12:05 -7.1 18:48 24.6 0.0 0.0 5.4 27.4 09:52 117 24 -6.0 -2.9 05:34 -7.8 21:09 24.4 0.0 0.0 4.8 33.8 07:09 280 25 -8.2 -4.1 09:35 -16.6 23:57 26.6 0.0 0.0 4.4 29.0 12:05 310 26 -16.2 -13.7 14:52 -21.4 07:46 34.5 0.0 0.0 9.2 45.1 23:59 70 27 -11.6 -8.2 15:05 -16.6 23:58 30.0 0.0 0.0 4.3 45.1 00:00 67 28 -11.4 -5.7 23:33 -18.6 04:25 29.8 0.0 0.0 5.4 32.2 22:58 95 29 -2.5 2.6 12:40 -9.3 23:16 20.9 0.0 3.4 13.2 53.1 14:14 202 30 -13.1 -9.0 00:00 -14.9 20:16 31.4 0.0 0.0 15.1 49.9 00:55 265 31 -10.8 -7.1 14:37 -15.8 06:38 29.2 0.0 0.0 5.4 25.7 02:43 224 --------------------------------------------------------------------------------------- -7.9 10.8 19 -22.9 09 812.7 0.0 10.6 6.2 54.7 19 253