Snow in West Allis, Wisconsin Winter storm alerts · 7-day snow forecast · average snowfall
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West Allis averages 52.3 inches of snow a year. The snowiest month is February (13.6″), 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 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
0
4
42°F
November
1.4″
1
1
16
30°F
December
13.3″
3
14
28
21°F
January
13.5″
4
19
29
15°F
February
13.6″
3
18
26
17°F
March
8.3″
2
8
23
27°F
April
2.1″
<1
1
7
37°F
May
0″
0
0
1
48°F
Year
52.3″
13
60
133
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at West Allis (in the city, -13 ft elevation difference). Averages smooth out big years: single winters can bring half or double the normal.
52.3 inches in an average year (NOAA U.S. Climate Normals 1991–2020, West Allis station). The snowiest month is February with 13.6 inches.
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How many freezing nights does West Allis have?
About 133 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 15 °F.