Monthly Climatological Summary for May 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 64.7 75.7 15:24 55.3 23:53 2.8 2.6 0.00 1.9 14.0 14:02 S 2 57.4 66.9 15:58 52.1 07:29 7.6 0.1 0.01 1.6 13.0 12:21 SSW 3 62.9 76.2 16:33 52.1 00:24 5.1 3.1 0.00 1.7 13.0 12:21 N 4 68.2 85.9 15:03 54.0 05:47 3.4 6.7 0.00 1.7 13.0 13:57 SSW 5 69.1 84.0 14:09 57.4 23:58 2.3 6.4 0.00 2.1 13.0 14:14 SSE 6 60.8 76.2 14:04 52.6 05:12 6.1 1.9 0.00 1.9 14.0 14:43 SSW 7 59.0 71.0 15:02 52.6 23:48 6.6 0.6 0.00 1.7 14.0 14:38 S 8 60.2 72.8 15:22 53.0 00:00 6.0 1.2 0.00 1.5 13.0 14:57 S 9 59.0 71.0 15:29 52.0 03:17 6.8 0.8 0.00 1.6 13.0 14:51 S 10 57.4 62.3 18:03 53.4 23:32 7.6 0.0 0.00 1.1 11.0 15:52 S 11 61.1 77.4 16:17 52.5 04:12 6.2 2.3 0.00 1.6 11.0 17:21 SSW 12 61.5 76.7 13:46 52.3 04:31 6.0 2.5 0.00 1.7 11.0 17:15 S 13 60.0 72.7 14:48 51.5 06:19 6.4 1.4 0.00 1.6 13.0 15:27 S 14 59.5 74.6 14:59 53.0 04:44 6.8 1.3 0.00 1.8 13.0 15:21 SSW 15 57.0 67.3 15:28 53.4 08:25 8.1 0.1 0.00 1.6 14.0 16:01 NNW 16 53.1 54.8 16:44 51.3 05:45 11.9 0.0 0.13 0.6 14.0 15:55 SSE 17 55.5 61.4 18:20 51.7 01:59 9.5 0.0 0.01 0.6 7.0 08:10 S 18 60.6 73.0 14:52 53.7 06:00 5.9 1.5 0.00 1.5 16.0 14:16 S 19 59.1 71.9 15:07 50.7 05:36 6.9 1.0 0.00 1.7 16.0 14:10 SSW 20 57.5 65.7 13:57 49.6 23:57 7.5 0.0 0.00 1.3 16.0 15:04 NNE 21 57.0 70.1 16:11 45.3 06:03 8.7 0.7 0.00 2.5 17.0 11:28 WSW 22 54.9 64.6 13:27 47.6 06:25 10.1 0.0 0.00 1.9 17.0 11:28 S 23 58.8 70.6 14:46 46.8 05:47 7.4 1.2 0.00 2.0 15.0 13:37 S 24 71.1 86.7 14:47 54.3 04:06 3.0 9.1 0.00 2.1 17.0 15:08 SSW 25 71.7 83.7 14:12 61.0 04:38 0.9 7.6 0.00 2.0 17.0 15:02 S 26 65.5 76.7 15:14 55.0 23:59 2.8 3.3 0.00 1.8 15.0 14:23 S 27 61.7 73.8 15:22 52.8 04:30 5.2 1.9 0.00 2.0 15.0 14:17 S 28 62.1 75.4 14:27 52.2 04:21 5.2 2.3 0.00 1.8 14.0 13:49 S 29 59.7 70.5 15:39 53.8 23:58 6.0 0.8 0.00 1.6 13.0 15:41 S 30 61.0 73.9 15:10 53.5 00:29 5.5 1.5 0.00 1.7 14.0 15:20 S 31 64.1 79.2 15:10 55.2 04:29 4.1 3.3 0.00 1.7 14.0 15:15 S ---------------------------------------------------------------------------------- 61.0 86.7 24 45.3 21 188.4 65.2 0.15 1.7 17.0 21 S Max >= 80.0: 4 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 0.13 on day 16 Days of Rain: 3 (>= 0.01 in) 1 (>= 0.10 in) 0 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration