Monthly Climatological Summary for Dec 2021 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 69.2 83.4 13:05 58.0 23:51 1.0 5.2 0.00 1.9 10.0 13:26 N 2 59.2 72.3 12:02 47.8 23:50 6.4 0.6 0.00 1.3 10.0 13:27 E 3 52.3 65.5 13:41 44.6 06:16 12.7 0.0 0.00 0.9 9.0 13:17 N 4 51.4 65.1 14:45 42.5 07:06 13.6 0.0 0.00 0.8 8.0 12:21 N 5 56.9 70.2 14:03 46.1 07:09 8.6 0.5 0.00 1.6 7.0 11:46 NE 6 58.2 71.8 12:05 50.6 22:48 7.7 0.9 0.00 1.3 10.0 11:19 ENE 7 52.9 59.7 13:11 48.1 23:38 12.1 0.0 0.04 0.5 10.0 13:12 N 8 53.1 63.3 13:41 45.5 06:13 11.9 0.0 0.00 1.3 10.0 08:50 SSE 9 48.9 52.7 00:06 41.5 22:41 16.1 0.0 0.45 1.0 10.0 13:33 SSW 10 47.1 56.3 14:16 40.3 04:46 17.9 0.0 0.00 1.5 10.0 10:34 NNE 11 50.3 62.8 14:29 40.5 06:04 14.7 0.0 0.00 1.8 11.0 12:52 NNE 12 50.3 62.0 13:59 43.6 06:39 14.7 0.0 0.00 1.7 10.0 10:58 NE 13 47.2 51.3 14:30 41.0 04:32 17.8 0.0 0.03 1.4 11.0 21:28 ESE 14 45.8 53.2 09:05 35.9 23:50 19.2 0.0 3.32 2.8 22.0 13:14 SE 15 41.5 52.7 14:01 34.1 06:11 23.5 0.0 0.00 1.5 10.0 13:17 ENE 16 44.8 53.1 12:29 37.3 06:42 20.2 0.0 0.08 1.3 9.0 09:24 E 17 49.2 62.9 13:55 40.0 05:36 15.8 0.0 0.01 1.8 9.0 11:09 NNE 18 52.2 66.9 14:56 41.6 06:49 12.9 0.1 0.00 1.9 8.0 10:57 NNE 19 52.0 63.2 14:29 44.9 22:43 13.0 0.0 0.00 1.9 11.0 12:39 NNE 20 52.2 65.4 13:58 41.8 05:09 12.8 0.0 0.00 1.6 6.0 10:15 NNE 21 55.7 66.7 14:20 49.5 21:19 9.3 0.0 0.00 1.6 9.0 14:28 NE 22 55.6 62.0 11:27 49.0 06:49 9.4 0.0 0.00 1.0 6.0 12:14 NE 23 50.1 55.5 02:02 47.9 07:17 14.9 0.0 2.05 1.5 15.0 21:13 SE 24 50.9 54.3 15:34 47.7 21:48 14.1 0.0 0.55 1.0 11.0 10:29 SSE 25 45.7 48.6 00:38 43.2 17:53 19.3 0.0 0.56 1.0 14.0 16:22 SE 26 45.2 54.2 14:49 38.7 06:56 19.8 0.0 0.15 1.4 11.0 02:22 SSE 27 43.2 49.0 11:28 39.0 05:22 21.8 0.0 0.38 1.1 9.0 10:01 SE 28 42.3 49.0 12:34 37.4 07:05 22.7 0.0 0.00 1.1 13.0 11:43 ESE 29 44.5 48.6 11:08 38.3 00:11 20.5 0.0 0.88 1.5 11.0 20:58 ESE 30 48.6 50.4 13:16 45.3 23:40 16.4 0.0 1.70 1.8 13.0 08:38 ESE 31 48.7 57.6 12:57 42.8 06:19 16.3 0.0 0.01 1.6 12.0 14:14 ESE ---------------------------------------------------------------------------------- 50.5 83.4 1 34.1 15 457.1 7.3 10.21 1.4 22.0 14 ENE Max >= 80.0: 1 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 3.32 on day 14 Days of Rain: 14 (>= 0.01 in) 9 (>= 0.10 in) 3 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration