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Report for 2025 December
Monthly Climatological Summary for Dec 2025
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 22.9 29.6 11:54 15.0 02:25 41.8 0.0 0.01 0.0 0.0 00:00 ---
2 19.2 23.8 00:00 16.2 08:47 45.7 0.0 0.00 0.0 0.0 00:00 ---
3 24.9 30.1 17:45 16.9 23:59 39.8 0.0 0.00 0.0 0.0 00:00 ---
4 13.1 24.4 13:32 5.3 23:55 51.6 0.0 0.00 0.0 0.0 00:00 ---
5 18.6 27.4 14:08 4.8 01:09 46.2 0.0 0.00 0.0 0.0 00:00 ---
6 29.3 32.3 14:35 25.2 06:56 35.5 0.0 0.00 0.0 0.0 00:00 ---
7 24.8 30.2 00:00 15.1 23:57 40.0 0.0 0.00 0.0 0.0 00:00 ---
8 19.8 27.5 13:38 14.7 07:39 44.0 0.0 0.00 0.0 0.0 00:00 ---
9 30.4 36.6 22:24 20.0 00:00 34.4 0.0 0.29 0.0 0.0 00:00 ---
10 32.2 39.3 02:51 27.0 23:57 32.5 0.0 0.25 0.0 0.0 00:00 ---
11 25.7 27.0 00:00 23.7 08:58 39.2 0.0 0.00 0.0 0.0 00:00 ---
12 25.1 31.5 13:12 16.9 07:26 39.7 0.0 0.01 0.0 0.0 00:00 ---
13 9.8 25.5 00:00 1.5 23:56 54.9 0.0 0.00 0.0 0.0 00:00 ---
14 2.4 8.7 13:21 -2.4 07:17 62.4 0.0 0.00 0.0 0.0 00:00 ---
15 13.4 21.1 15:57 1.2 00:16 51.2 0.0 0.00 0.0 0.0 00:00 ---
16 27.3 38.0 14:18 14.3 01:44 37.5 0.0 0.02 0.0 0.0 00:00 ---
17 36.8 43.4 13:48 31.4 07:46 28.1 0.0 0.07 0.0 0.0 00:00 ---
18 38.8 50.3 12:29 16.8 23:34 26.1 0.0 0.19 0.0 0.0 00:00 ---
19 15.9 23.1 23:29 8.9 07:52 49.0 0.0 0.00 0.0 0.0 00:00 ---
20 33.4 39.3 12:51 22.7 00:05 31.5 0.0 0.00 0.0 0.0 00:00 ---
21 25.3 33.0 15:12 15.9 07:07 39.5 0.0 0.00 0.0 0.0 00:00 ---
22 37.9 42.6 18:57 30.0 00:00 26.9 0.0 0.00 0.0 0.0 00:00 ---
23 40.6 51.9 13:37 32.7 23:59 24.3 0.0 0.00 0.0 0.0 00:00 ---
24 40.1 47.4 14:20 32.3 00:19 24.7 0.0 0.02 0.0 0.0 00:00 ---
25 41.0 43.3 00:00 37.4 06:25 23.9 0.0 0.00 0.0 0.0 00:00 ---
26 42.9 48.1 11:01 39.1 23:56 22.0 0.0 0.01 0.0 0.0 00:00 ---
27 41.1 45.9 23:57 38.6 07:04 23.8 0.0 0.01 0.0 0.0 00:00 ---
28 47.5 58.3 16:12 20.1 23:58 17.5 0.0 1.18 0.0 0.0 00:00 ---
29 18.2 23.1 12:34 13.4 04:47 46.6 0.0 0.00 0.0 0.0 00:00 ---
30 17.0 26.0 23:58 9.2 06:57 47.8 0.0 0.00 0.0 0.0 00:00 ---
31 30.0 35.1 18:32 17.5 23:56 34.8 0.0 0.09 0.0 0.0 00:00 ---
----------------------------------------------------------------------------------
27.3 58.3 28 -2.4 14 1162.9 0.0 2.15 0.0 0.0 0 ---
Max >= 80.0: 0
Max <= 25.2: 6
Min <= 32.0: 26
Min <= 0.0: 1
Max Rain: 1.18 on day 28
Days of Rain: 12 (>= 0.01 in) 4 (>= 0.10 in) 1 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration