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Report for 2026
Annual Climatological Summary for 2026
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
------------------------------------------------------------------------------------
26 1 29.6 15.5 22.1 2.8 1793 0 58.9 8 -10.3 23 0 21 35 6
26 2 45.9 23.2 32.8 8.5 1030 2 158.0 18 0.0 22 1 0 29 1
26 3
26 4
26 5
26 6
26 7
26 8
26 9
26 10
26 11
26 12
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37.7 19.3 27.4 5.6 2824 2 158.0 Feb -10.3 Jan 1 21 64 7
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
26 1 3.24 1.54 1.46 8 9 3 2
26 2 0.20 -1.20 0.06 17 5 0 0
26 3
26 4
26 5
26 6
26 7
26 8
26 9
26 10
26 11
26 12
---------------------------------------------
3.44 0.34 1.46 Jan 14 3 2
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
26 1 0.0 0.0 0 ---
26 2 0.6 23.0 20 SW
26 3
26 4
26 5
26 6
26 7
26 8
26 9
26 10
26 11
26 12
------------------------------
0.3 23.0 Feb SW