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Report for 2026 May
Monthly Climatological Summary for May 2026
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 43.4 51.2 13:45 33.9 23:58 21.4 0.0 0.00 0.4 9.0 11:53 NW
2 44.4 58.2 15:23 30.4 06:09 20.5 0.0 0.07 0.6 9.0 12:05 WNW
3 53.6 68.6 17:00 42.5 04:28 11.4 0.2 0.01 1.0 10.0 14:17 SSE
4 63.0 81.5 15:39 47.2 04:53 5.8 3.8 0.02 0.9 18.0 18:16 SSE
5 53.4 59.9 00:00 44.6 08:12 11.6 0.0 0.00 0.8 10.0 15:30 NW
6 49.0 58.6 14:51 38.8 23:57 16.0 0.0 0.00 0.9 13.0 16:35 W
7 48.0 62.0 16:14 32.6 05:58 17.0 0.0 0.02 0.7 10.0 16:52 S
8 56.1 70.5 15:35 41.3 04:54 9.4 0.5 0.00 0.5 7.0 13:26 SE
9 61.5 75.6 15:50 49.1 23:59 6.1 2.6 0.00 1.0 15.0 15:34 WSW
----------------------------------------------------------------------------------
52.5 81.5 4 30.4 2 119.2 7.1 0.12 0.7 18.0 4 SW
Max >= 80.0: 1
Max <= 25.2: 0
Min <= 32.0: 1
Min <= 0.0: 0
Max Rain: 0.07 on day 2
Days of Rain: 4 (>= 0.01 in) 0 (>= 0.10 in) 0 (>= 1.00 in)
Heat Base: 65.0 Cool Base: 65.0 Method: Integration