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Report for 2021 May
Monthly Climatological Summary for May 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 77.7 84.5 17:14 0.0 14:39 0.0 5.0 0.00 1.9 17.0 04:06 SSE
2 70.5 84.9 15:29 59.3 06:15 1.2 6.6 0.00 1.6 17.0 04:06 SE
3 62.8 70.7 15:19 58.4 05:31 3.2 1.0 0.00 0.3 12.0 05:03 ESE
4 53.4 59.1 00:00 44.1 23:56 11.6 0.0 0.00 0.9 10.0 11:17 WNW
5 51.5 65.5 16:56 39.4 06:28 13.4 0.0 0.00 1.0 13.0 09:19 WNW
6 49.5 58.9 16:40 42.7 23:45 15.5 0.0 0.00 0.3 12.0 00:47 WSW
7 48.7 60.4 13:46 39.3 23:59 16.3 0.0 0.00 0.8 14.0 00:58 WNW
8 44.5 57.2 14:45 33.3 04:27 20.4 0.0 0.02 0.3 14.0 00:58 E
9 45.2 58.4 15:48 37.4 00:33 19.7 0.0 0.02 0.5 7.0 03:28 SE
10 46.4 57.6 13:40 35.6 02:51 18.6 0.0 0.00 0.3 8.0 18:05 SE
11 47.0 59.4 14:10 36.2 06:00 18.0 0.0 0.01 0.4 8.0 06:30 SSE
12 50.1 65.7 16:51 34.0 05:22 14.8 0.0 0.01 0.4 8.0 14:12 SE
13 54.6 72.4 16:31 36.2 05:48 11.4 1.0 0.01 0.3 9.0 00:47 WNW
14 59.2 74.5 15:34 41.5 06:19 8.0 2.2 0.00 0.4 9.0 00:47 W
15 54.8 58.9 17:39 50.9 04:32 10.2 0.0 0.01 0.1 7.0 02:20 ESE
16 62.0 71.8 14:33 50.7 05:58 4.6 1.6 0.00 0.1 7.0 00:09 SE
17 62.5 68.8 15:32 56.8 05:53 3.4 0.9 0.01 0.2 8.0 14:14 E
18 64.4 73.1 12:10 57.3 00:31 2.7 2.0 0.01 0.6 9.0 02:55 E
19 67.8 74.4 15:06 63.1 09:06 0.2 3.0 0.02 0.0 9.0 02:55 ---
20 74.6 84.8 14:58 64.5 01:22 0.0 9.6 0.01 0.0 0.0 00:00 ---
21 74.2 85.2 13:42 63.7 05:54 0.1 9.2 0.01 0.0 1.0 16:43 ---
22 76.6 87.8 15:55 66.7 05:44 0.0 11.6 0.00 0.0 1.0 05:08 ---
23 72.6 81.9 15:36 60.2 23:54 0.4 8.0 0.00 0.0 0.0 00:00 ---
24 73.7 88.8 16:35 58.4 03:33 1.9 10.5 0.00 0.0 0.0 00:00 ---
25 74.2 84.1 14:26 67.8 04:02 0.0 9.2 0.00 0.2 9.0 23:30 SE
26 70.8 81.8 16:10 57.6 23:58 0.4 6.2 0.00 0.6 11.0 13:50 WNW
27 54.7 61.7 12:37 48.4 15:53 10.2 0.0 0.00 0.8 11.0 02:14 SE
28 45.0 51.0 00:00 42.9 05:30 20.0 0.0 0.00 0.9 10.0 05:12 SSE
29 52.0 64.0 16:10 39.8 05:40 13.0 0.0 0.00 0.4 10.0 05:12 SSE
30 58.0 73.6 16:30 40.9 06:01 8.8 1.8 0.00 0.1 9.0 00:20 E
31 60.5 69.8 11:56 51.4 23:56 5.3 0.8 0.00 0.1 5.0 00:17 SE
----------------------------------------------------------------------------------
60.0 88.8 24 0.0 1 253.3 90.2 0.14 0.4 17.0 1 SSE
Max >= 80.0: 9
Max <= 25.2: 0
Min <= 32.0: 1
Min <= 0.0: 1
Max Rain: 0.02 on day 8
Days of Rain: 11 (>= 0.01 in) 0 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration