Snow in Twin Falls, Idaho Winter storm alerts · 7-day snow forecast · average snowfall
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Twin Falls averages 24.2 inches of snow a year. The snowiest month is January (7.8″), and snow usually falls from October through April. On about 9 days a year at least an inch falls.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
September
0″
0
—
1
47°F
October
0.5″
<1
—
9
37°F
November
2.0″
1
—
22
28°F
December
6.0″
2
—
27
23°F
January
7.8″
3
—
27
22°F
February
5.5″
2
—
24
25°F
March
1.9″
1
—
19
32°F
April
0.5″
<1
—
9
36°F
May
0″
0
—
2
45°F
Year
24.2″
9
—
140
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Twin Falls 6 E (6 mi from the city center, +236 ft elevation difference); temperatures at Twin Falls-Kmvt. Averages smooth out big years: single winters can bring half or double the normal.
24.2 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Twin Falls 6 E station, 6 miles away). The snowiest month is January with 7.8 inches.
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This page checks the National Weather Service for active alerts at Twin Falls'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 Twin Falls have?
About 140 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 22 °F.