Monthly Climatological Summary for May 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 52.8 57.1 15:43 50.1 23:58 12.2 0.0 0.29 1.3 10.0 16:56 E 2 50.6 57.3 16:03 44.9 22:42 14.4 0.0 0.01 1.3 11.0 12:43 S 3 50.0 57.8 13:48 42.1 03:53 15.0 0.0 0.00 1.8 15.0 12:52 N 4 49.1 53.8 16:41 43.1 05:56 15.9 0.0 1.19 1.1 12.0 05:56 E 5 51.9 61.3 16:40 46.8 02:23 13.1 0.0 0.00 1.0 13.0 12:45 N 6 53.9 65.0 14:53 43.8 06:15 11.0 0.0 0.00 1.3 14.0 13:47 N 7 55.4 67.6 14:35 45.6 06:09 9.9 0.2 0.00 1.4 15.0 12:13 N 8 57.1 69.6 13:57 46.5 05:57 8.7 0.7 0.00 1.4 13.0 12:17 N 9 53.2 60.2 16:02 47.2 05:08 11.8 0.0 0.00 0.8 10.0 17:59 N 10 54.6 62.5 14:16 48.9 00:04 10.4 0.0 0.00 0.8 7.0 10:18 NNE 11 56.9 69.8 15:50 49.7 02:31 8.6 0.4 0.00 1.1 11.0 14:07 SW 12 60.0 76.9 15:12 48.1 05:48 7.3 2.3 0.00 1.2 10.0 13:50 W 13 65.1 82.6 15:15 51.7 04:02 4.6 4.7 0.00 1.3 11.0 12:42 S 14 64.2 82.3 16:01 54.5 06:35 4.5 3.8 0.00 1.5 13.0 13:12 SSW 15 63.5 76.5 15:44 54.4 05:29 4.3 2.8 0.00 1.4 11.0 14:05 N 16 65.5 80.3 15:36 53.0 06:12 3.5 4.1 0.00 1.4 12.0 13:24 N 17 65.1 81.7 15:01 52.9 04:22 3.8 3.9 0.00 1.7 11.0 12:22 NNE 18 62.6 73.9 15:20 54.6 01:32 4.3 1.9 0.00 1.6 13.0 13:10 N 19 61.1 71.3 16:26 54.0 02:24 5.0 1.1 0.00 1.5 12.0 12:01 N 20 65.0 78.3 14:30 57.4 06:03 3.4 3.4 0.00 1.8 14.0 13:38 SW 21 64.7 79.2 14:10 57.5 03:42 3.2 2.9 0.00 1.1 11.0 13:42 N 22 63.3 75.0 14:27 56.3 07:03 4.0 2.2 0.00 1.5 14.0 13:30 NNW 23 57.7 60.4 13:48 55.0 23:41 7.3 0.0 0.03 1.0 9.0 14:05 NNW 24 56.3 62.3 16:58 54.1 10:19 8.7 0.0 0.08 1.1 9.0 15:45 S 25 54.8 60.4 13:11 50.8 06:00 10.2 0.0 0.03 0.7 9.0 13:43 NNW 26 55.5 59.9 15:28 52.8 05:29 9.5 0.0 0.00 0.6 7.0 16:00 SSW 27 57.6 68.4 14:43 52.9 23:52 7.6 0.2 0.00 1.1 12.0 15:06 WSW 28 56.4 61.1 17:13 52.4 00:36 8.6 0.0 0.00 0.6 7.0 10:14 S 29 57.6 65.0 17:03 54.9 04:28 7.4 0.0 0.01 0.8 9.0 14:25 SW 30 56.7 60.6 15:11 54.4 05:15 8.3 0.0 0.00 0.6 7.0 18:47 NW 31 54.8 59.2 09:55 52.8 03:58 10.2 0.0 0.08 0.4 8.0 10:03 ESE ---------------------------------------------------------------------------------- 57.8 82.6 13 42.1 3 256.7 34.6 1.72 1.2 15.0 3 NNW Max >= 80.0: 4 Max <= 32.0: 0 Min <= 32.0: 0 Min <= 0.0: 0 Max Rain: 1.19 on day 4 Days of Rain: 8 (>= 0.01 in) 2 (>= 0.10 in) 1 (>= 1.00 in) Heat Base: 65.0 Cool Base: 65.0 Method: Integration