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Report for 2021 January
Monthly Climatological Summary for Jan 2021
Name: NapervilleWather.com City: Naperville State: IL
Elevation: 781 ft Lat: N 41° 47' 23" Lon: W 088° 07' 27"
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 28.6 33.3 17:45 19.1 00:00 36.4 0.0 0.00 0.8 9.0 04:12 S
2 30.9 33.2 13:36 26.8 07:37 34.1 0.0 0.00 0.2 9.0 04:12 WNW
3 29.7 32.2 11:50 24.2 23:59 35.3 0.0 0.00 0.4 6.0 22:25 SW
4 26.0 29.1 13:22 23.6 04:24 39.0 0.0 0.00 0.3 7.0 01:09 SSE
5 30.1 33.1 13:22 27.2 00:00 34.9 0.0 0.00 0.8 9.0 01:37 WNW
6 32.6 38.6 13:37 28.1 01:18 32.4 0.0 0.04 0.1 7.0 01:00 E
7 33.8 36.4 10:15 32.4 23:56 31.2 0.0 0.00 0.1 7.0 05:43 NW
8 31.6 33.7 13:56 28.1 23:40 33.4 0.0 0.00 1.2 9.0 16:49 WNW
9 29.6 37.5 13:39 24.3 23:59 35.4 0.0 0.04 1.3 9.0 08:52 WNW
10 25.9 28.8 13:21 22.7 23:56 39.1 0.0 0.00 0.7 8.0 07:10 W
11 25.0 28.3 18:59 20.8 02:42 40.0 0.0 0.00 1.5 12.0 13:08 S
12 29.7 37.1 13:46 24.9 05:02 35.3 0.0 0.02 1.0 12.0 05:12 SSE
13 33.8 39.3 13:26 27.9 00:32 31.1 0.0 0.00 0.6 8.0 05:40 SSE
14 34.4 37.9 11:57 30.7 03:26 30.6 0.0 0.08 0.9 9.0 04:11 ESE
15 32.2 36.2 14:44 26.5 21:18 32.8 0.0 0.02 0.4 9.0 04:11 ESE
16 32.7 36.0 13:25 27.2 00:00 32.3 0.0 0.04 1.0 10.0 06:49 W
17 29.1 32.3 00:00 26.1 23:55 35.9 0.0 0.00 0.2 10.0 06:49 WSW
18 25.9 28.1 10:24 21.2 23:57 39.1 0.0 0.00 0.9 11.0 11:37 WSW
19 23.7 31.4 20:32 17.0 05:33 41.3 0.0 0.00 1.2 18.0 14:54 SW
20 23.1 33.3 23:59 11.7 07:35 41.9 0.0 0.00 2.2 18.0 14:54 SSE
21 33.8 39.7 13:31 28.5 23:58 31.2 0.0 0.00 1.9 16.0 15:32 SW
22 16.3 28.5 00:00 8.5 23:57 48.7 0.0 0.00 2.7 16.0 07:35 W
23 19.6 31.4 15:16 5.5 07:26 45.4 0.0 0.00 0.7 13.0 00:15 E
24 30.0 33.9 14:25 26.4 06:37 35.0 0.0 0.03 0.7 8.0 16:27 E
25 30.1 32.8 13:10 28.1 06:50 34.9 0.0 0.00 0.8 8.0 07:17 S
26 28.9 31.5 13:41 23.9 23:52 36.1 0.0 0.00 0.4 8.0 07:17 NNW
27 21.2 27.8 14:04 12.2 23:46 43.8 0.0 0.00 0.8 8.0 12:25 NW
28 15.5 26.2 14:02 7.9 06:27 49.5 0.0 0.01 1.0 8.0 09:32 WNW
29 23.9 33.6 13:10 12.3 07:26 41.1 0.0 0.00 0.9 10.0 15:14 E
30 30.1 33.6 14:18 27.2 00:25 34.8 0.0 0.00 2.2 15.0 12:14 E
31 30.2 31.7 15:55 28.6 04:34 34.8 0.0 0.00 0.7 15.0 04:17 WNW
----------------------------------------------------------------------------------
28.0 39.7 21 5.5 23 1146.8 0.0 0.28 0.9 18.0 19 SW
Max >= 80.0: 0
Max <= 25.2: 0
Min <= 32.0: 30
Min <= 0.0: 0
Max Rain: 0.08 on day 14
Days of Rain: 8 (>= 0.01 in) 0 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration