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Report for 2019 December
Monthly Climatological Summary for Dec 2019
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 45.1 158.0 04:28 31.0 23:25 24.2 5.9 0.05 1.9 17.0 05:03 W
2 30.9 33.5 11:36 28.9 19:22 34.1 0.0 0.02 2.0 17.0 16:08 W
3 33.4 40.1 14:35 28.5 04:54 31.6 0.0 0.00 1.2 12.0 01:23 S
4 35.4 42.7 14:26 28.4 23:56 29.6 0.0 0.00 2.3 21.0 13:46 W
5 35.6 45.8 15:21 24.5 05:11 29.4 0.0 0.00 0.3 21.0 05:47 ESE
6 34.6 41.6 13:26 23.2 23:38 30.4 0.0 0.00 0.9 11.0 03:47 WNW
7 30.8 38.4 15:14 23.1 04:25 34.2 0.0 0.00 0.6 10.0 03:02 ESE
8 40.2 46.4 15:33 31.3 03:52 24.8 0.0 0.00 1.0 9.0 11:13 SE
9 40.3 46.9 14:16 22.5 23:59 24.7 0.0 0.04 1.9 21.0 22:07 SW
10 41.0 158.0 04:20 13.5 08:12 38.7 14.9 0.00 2.0 21.0 14:07 WSW
11 17.5 24.7 13:29 13.0 04:21 47.5 0.0 0.00 0.9 16.0 04:51 SW
12 32.5 44.3 14:52 17.2 00:00 32.5 0.0 0.00 1.7 10.0 03:48 ESE
13 37.1 46.4 13:40 32.9 23:54 27.9 0.0 0.00 0.2 10.0 03:48 SE
14 29.4 32.9 00:00 24.2 23:51 35.6 0.0 0.00 2.0 15.0 13:27 W
15 22.7 26.1 13:18 18.9 04:50 42.3 0.0 0.00 1.0 15.0 13:27 W
16 27.1 30.0 15:27 23.9 00:00 37.9 0.0 0.01 0.3 7.0 14:19 WNW
17 24.3 28.6 13:39 18.8 08:10 40.7 0.0 0.00 1.5 13.0 16:56 WSW
18 18.0 26.1 00:00 11.4 08:34 47.0 0.0 0.00 1.7 13.0 08:57 W
19 24.3 35.2 15:24 14.0 05:13 40.7 0.0 0.00 0.9 10.0 02:18 SSE
20 30.4 40.6 15:04 22.0 04:25 34.6 0.0 0.00 0.4 10.0 01:10 E
21 36.4 46.6 13:37 30.9 05:03 28.6 0.0 0.00 0.5 6.0 02:54 S
22 38.6 51.8 13:38 30.0 05:02 26.4 0.0 0.00 0.6 8.0 14:41 SSE
23 39.3 49.7 14:43 32.3 05:13 25.7 0.0 0.00 0.5 8.0 06:42 SSW
24 41.6 53.9 14:46 30.9 08:12 23.4 0.0 0.00 0.6 8.0 03:04 ESE
25 48.4 58.9 14:39 37.8 05:09 16.6 0.0 0.00 0.7 9.0 12:49 SE
26 51.3 61.3 13:07 36.7 23:27 13.7 0.0 0.00 1.2 10.0 11:09 SSW
27 32.6 36.7 00:00 25.8 23:38 32.4 0.0 0.00 1.4 12.0 16:17 WSW
28 38.0 51.2 23:53 25.8 00:00 27.0 0.0 0.34 0.8 11.0 10:52 E
29 69.6 158.0 04:54 46.4 23:55 10.2 14.8 0.74 1.7 15.0 19:19 SE
30 31.9 46.4 00:00 26.8 22:26 33.1 0.0 0.06 2.6 17.0 16:11 SSW
31 26.3 28.8 19:25 24.3 08:19 38.7 0.0 0.00 2.7 17.0 03:05 SW
----------------------------------------------------------------------------------
35.0 158.0 1 11.4 18 964.2 35.6 1.26 1.2 21.0 4 SW
Max >= 80.0: 3
Max <= 25.2: 1
Min <= 32.0: 26
Min <= 0.0: 0
Max Rain: 0.74 on day 29
Days of Rain: 7 (>= 0.01 in) 2 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration