Snow in Hanover Park, Illinois Winter storm alerts · 7-day snow forecast · average snowfall
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Hanover Park averages 34.0 inches of snow a year. The snowiest month is January (11.9″), and snow usually falls from October through April. On about 12 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 60 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0.1″
0
<1
5
42°F
November
1.8″
1
2
17
31°F
December
8.7″
3
16
27
21°F
January
11.9″
4
21
29
16°F
February
6.0″
2
15
26
19°F
March
4.8″
2
6
21
28°F
April
0.7″
<1
1
8
38°F
May
0″
0
0
1
49°F
Year
34.0″
12
60
134
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Streamwood (2 mi from the city center, +7 ft elevation difference); temperatures at West Chicago Dupage Airport. Averages smooth out big years: single winters can bring half or double the normal.
34.0 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Streamwood station, 2 miles away). The snowiest month is January with 11.9 inches.
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How many freezing nights does Hanover Park have?
About 134 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 16 °F.