Monthly Climatological Summary for Dec 2023 Name: Altadena WeatherCam City: Altadena State: California Elevation: 1680 ft Lat: N 34° 12' 16" Lon: W 118° 08' 18" Temperature (°F), Rain (in), Wind Speed (mph) Heat Cool Avg Mean Deg Deg Wind Dom Day Temp High Time Low Time Days Days Rain Speed High Time Dir ---------------------------------------------------------------------------------- 1 52.6 63.6 14:53 45.1 00:44 12.4 0.0 0.00 1.5 14.0 02:59 N 2 51.7 64.1 14:52 43.6 06:43 13.3 0.0 0.00 1.3 10.0 10:22 N 3 53.7 65.0 14:29 44.9 03:49 11.3 0.0 0.00 1.2 9.0 09:42 N 4 61.4 76.4 14:44 51.0 05:40 5.8 2.2 0.00 1.4 10.0 13:21 N 5 65.0 79.4 14:37 55.6 06:38 3.4 3.4 0.00 1.7 9.0 13:24 N 6 61.5 74.7 13:15 48.8 23:58 5.6 2.1 0.00 1.4 11.0 15:14 N 7 52.4 65.4 13:48 45.0 07:01 12.6 0.0 0.00 1.1 10.0 12:55 N 8 51.9 64.6 14:33 43.9 05:43 13.1 0.0 0.00 1.5 9.0 12:03 N 9 55.0 68.4 15:11 46.6 03:44 10.3 0.3 0.00 1.7 10.0 13:29 N 10 57.2 73.0 14:41 46.6 06:12 9.0 1.2 0.00 1.6 9.0 13:09 N 11 58.8 72.1 14:40 50.3 23:15 7.3 1.1 0.00 1.5 6.0 12:03 N 12 53.5 67.0 14:33 45.6 06:53 11.6 0.1 0.00 1.5 9.0 12:56 N 13 52.6 66.8 14:53 39.2 07:10 12.5 0.1 0.00 1.2 9.0 13:36 N 14 56.5 71.4 14:52 46.6 07:18 9.3 0.8 0.00 1.8 10.0 13:53 N 15 59.9 75.2 14:44 48.4 06:54 7.1 2.0 0.00 1.7 9.0 10:44 N 16 62.4 77.5 14:38 52.6 05:43 5.1 2.5 0.00 1.8 11.0 13:34 N 17 63.5 74.2 12:04 54.8 04:59 3.4 2.0 0.00 1.3 5.0 10:02 N 18 61.2 65.9 14:40 55.9 23:58 3.8 0.0 0.08 0.6 8.0 18:38 N 19 56.0 60.4 13:36 53.4 04:34 9.0 0.0 0.40 0.6 9.0 10:00 N 20 55.4 58.8 14:00 53.8 08:07 9.6 0.0 0.55 1.2 11.0 13:19 N 21 55.8 61.3 10:06 52.6 21:46 9.2 0.0 0.30 1.2 11.0 10:32 N 22 55.3 63.3 15:01 49.0 23:09 9.7 0.0 0.41 1.0 15.0 01:54 N 23 52.8 62.2 14:06 46.5 05:02 12.2 0.0 0.01 0.5 9.0 09:47 N 24 53.7 63.4 14:29 47.2 02:42 11.3 0.0 0.00 1.3 11.0 11:41 N 25 54.4 65.7 13:59 46.7 07:07 10.6 0.0 0.00 1.1 9.0 12:16 N 26 55.0 66.1 15:03 48.1 03:33 10.0 0.0 0.00 0.8 9.0 11:17 N 27 54.7 63.9 14:36 47.4 23:34 10.3 0.0 0.00 1.0 9.0 11:54 N 28 52.2 65.5 14:48 41.3 05:33 12.9 0.0 0.00 1.1 8.0 13:02 NNE 29 55.4 64.0 14:08 50.3 03:36 9.6 0.0 0.00 1.3 9.0 11:00 NNE 30 50.8 56.9 14:41 45.2 23:59 14.2 0.0 0.38 0.8 9.0 10:13 NNE 31 48.8 54.2 12:49 44.0 02:25 16.2 0.0 0.00 0.6 9.0 11:48 NE ---------------------------------------------------------------------------------- 55.8 79.4 5 39.2 13 301.7 17.8 2.13 1.2 15.0 22 N Max >= 80.0: 0 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.55 on day 20 Days of Rain: 7 (>= 0.01 in) 5 (>= 0.10 in) 0 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration