Snow in Tinley Park, Illinois Winter storm alerts · 7-day snow forecast · average snowfall
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Tinley Park averages 28.2 inches of snow a year. The snowiest month is January (10.2″), and snow usually falls from October through April. On about 13 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 46 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0.2″
<1
<1
3
42°F
November
0.9″
<1
1
15
31°F
December
4.0″
2
9
27
22°F
January
10.2″
5
18
29
15°F
February
7.5″
3
13
25
18°F
March
4.9″
2
5
21
28°F
April
0.5″
<1
<1
6
38°F
Year
28.2″
13
46
125
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Park Forest (8 mi from the city center, +13 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
28.2 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Park Forest station, 8 miles away). The snowiest month is January with 10.2 inches.
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How many freezing nights does Tinley Park have?
About 125 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 15 °F.