Snow in Plainfield, Illinois Winter storm alerts · 7-day snow forecast · average snowfall
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Plainfield averages 29.2 inches of snow a year. The snowiest month is January (9.0″), and snow usually falls from November through April. On about 9 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 47 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0″
0
0
3
44°F
November
1.0″
<1
1
15
32°F
December
7.6″
3
11
27
22°F
January
9.0″
3
16
28
16°F
February
8.1″
2
14
25
20°F
March
3.0″
1
4
20
30°F
April
0.5″
<1
<1
5
40°F
Year
29.2″
9
47
123
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Plainfield 3 Ne (1 mi from the city center, -3 ft elevation difference); temperatures at Romeoville Wfo. Averages smooth out big years: single winters can bring half or double the normal.
29.2 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Plainfield 3 Ne station, 1 miles away). The snowiest month is January with 9.0 inches.
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How many freezing nights does Plainfield have?
About 123 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 16 °F.