Snow in Pasco, Washington Winter storm alerts · 7-day snow forecast · average snowfall
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Pasco averages 2.0 inches of snow a year. The snowiest month is December (1.4″), and snow usually falls from November through March. On about 2 days a year at least an inch falls. Snow covers the ground (1″+) on roughly 2 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
October
0″
0
0
8
38°F
November
0.1″
<1
<1
17
32°F
December
1.4″
<1
1
23
27°F
January
0.2″
1
<1
21
28°F
February
0.2″
<1
1
20
28°F
March
0.1″
<1
<1
15
33°F
April
0″
0
0
6
38°F
May
0″
0
0
2
46°F
Year
2.0″
2
2
112
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Ice Harbor Dam (11 mi from the city center, -10 ft elevation difference); temperatures at Pasco Tri Cities Airport. Averages smooth out big years: single winters can bring half or double the normal.
2.0 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Ice Harbor Dam station, 11 miles away). The snowiest month is December with 1.4 inches.
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How many freezing nights does Pasco have?
About 112 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, December, averages a low of 27 °F.