Snow in Chesterfield, Missouri Winter storm alerts · 7-day snow forecast · average snowfall
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Chesterfield averages 8.1 inches of snow a year. The snowiest month is January (4.2″), and snow usually falls from November through March. On about 3 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
—
3
45°F
November
0.4″
<1
—
13
34°F
December
2.1″
1
—
23
26°F
January
4.2″
1
—
26
22°F
February
1.1″
1
—
22
26°F
March
0.3″
<1
—
14
34°F
April
0″
0
—
4
44°F
Year
8.1″
3
—
105
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at St Charles 7 Ssw (3 mi from the city center, -10 ft elevation difference); temperatures at St Louis Sprt Of S L Airport. Averages smooth out big years: single winters can bring half or double the normal.
8.1 inches in an average year (NOAA U.S. Climate Normals 1991–2020, St Charles 7 Ssw station, 3 miles away). The snowiest month is January with 4.2 inches.
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This page checks the National Weather Service for active alerts at Chesterfield's location every time you open it; the box at the top lists any winter storm, winter weather, cold or freeze alert in effect right now.
How many freezing nights does Chesterfield have?
About 105 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 22 °F.