Snow in Quincy, Illinois Winter storm alerts · 7-day snow forecast · average snowfall
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Quincy averages 12.5 inches of snow a year. The snowiest month is January (3.4″), and snow usually falls from November through April. On about 7 days a year at least an inch falls.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0″
0
—
2
45°F
November
0.7″
<1
—
14
34°F
December
3.1″
3
—
25
25°F
January
3.4″
2
—
27
19°F
February
3.1″
2
—
23
23°F
March
1.6″
1
—
17
32°F
April
0.6″
<1
—
3
43°F
Year
12.5″
7
—
112
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Palmyra (13 mi from the city center, +72 ft elevation difference); temperatures at Quincy Dam 21. Averages smooth out big years: single winters can bring half or double the normal.
12.5 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Palmyra station, 13 miles away). The snowiest month is January with 3.4 inches.
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How many freezing nights does Quincy have?
About 112 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 19 °F.