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Report for 2025
Annual Climatological Summary for 2025
Name: NapervilleWather.com City: Naperville State: IL
Elevation: 781 ft Lat: N 41° 47' 23" Lon: W 088° 07' 27"
Temperature (°F), Heat Base: 65.0 Cool Base: 65.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 80.0 25.2 32.0 0.0
------------------------------------------------------------------------------------
25 1 28.7 13.5 21.6 2.3 2554 0 47.9 30 -8.6 21 0 25 59 11
25 2 35.4 19.4 27.2 2.9 1962 0 58.1 28 -6.1 18 0 8 44 2
25 3 54.1 32.6 43.3 8.1 1029 20 78.9 14 14.3 2 0 0 23 0
25 4 61.9 41.3 51.2 4.2 851 51 84.3 28 24.4 8 4 0 5 0
25 5 69.7 48.6 58.2 -0.2 517 104 93.0 15 38.7 9 8 0 0 0
25 6 81.2 59.6 69.6 1.5 87 277 93.1 21 42.3 1 26 0 0 0
25 7
25 8
25 9
25 10
25 11
25 12
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55.2 35.8 45.2 3.1 7004 453 93.1 Jun -8.6 Jan 38 33 131 13
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
25 1 2.43 0.73 0.66 31 11 4 0
25 2 0.56 -0.84 0.09 23 15 0 0
25 3 2.77 0.57 0.89 4 12 6 0
25 4 1.35 -2.55 0.38 25 15 4 0
25 5 4.26 0.46 0.73 1 18 6 0
25 6 4.61 0.31 1.00 18 16 13 1
25 7
25 8
25 9
25 10
25 11
25 12
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15.98 -1.32 1.00 Jun 87 33 1
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
25 1 1.6 19.0 25 WSW
25 2 1.1 24.0 28 W
25 3 1.4 24.0 5 SW
25 4 1.0 20.0 15 SSE
25 5 0.4 18.0 16 WSW
25 6 0.3 14.0 9 ESE
25 7
25 8
25 9
25 10
25 11
25 12
------------------------------
1.0 24.0 Feb SW