Snow in Rochester, New Hampshire Winter storm alerts · 7-day snow forecast · average snowfall
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Rochester averages 38.9 inches of snow a year. The snowiest month is January (10.8″), and snow usually falls from October through April. On about 11 days a year at least an inch falls, and about 1 day brings 10 inches or more. Snow covers the ground (1″+) on roughly 64 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0.2″
0
0
6
39°F
November
1.3″
1
1
18
31°F
December
8.9″
2
11
27
22°F
January
10.8″
3
19
29
15°F
February
9.1″
3
18
27
17°F
March
6.8″
2
14
25
25°F
April
1.8″
<1
1
12
35°F
May
0″
0
0
1
45°F
Year
38.9″
11
64
145
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Durham (11 mi from the city center, -164 ft elevation difference); temperatures at Rochester Skyhaven Airport. Averages smooth out big years: single winters can bring half or double the normal.
38.9 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Durham station, 11 miles away). The snowiest month is January with 10.8 inches.
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How many freezing nights does Rochester have?
About 145 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, January, averages a low of 15 °F.