Snow in Renton, Washington Winter storm alerts · 7-day snow forecast · average snowfall
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Renton averages 6.3 inches of snow a year. The snowiest month is February (2.2″), 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 4 days of an average winter.
Average snowfall by month
Month
Snowfall
Days 1″+
Days with snow cover
Freezing nights
Avg. low
November
0.2″
<1
<1
4
40°F
December
1.7″
1
1
8
37°F
January
1.8″
<1
1
7
37°F
February
2.2″
1
1
7
37°F
March
0.4″
<1
<1
3
40°F
Year
6.3″
2
4
30
NOAA NCEI U.S. Climate Normals 1991–2020 — snowfall at Seattle Tacoma Intl. Airport (5 mi from the city center, +328 ft elevation difference); temperatures at Renton Muni Airport. Averages smooth out big years: single winters can bring half or double the normal.
6.3 inches in an average year (NOAA U.S. Climate Normals 1991–2020, Seattle Tacoma Intl. Airport station, 5 miles away). The snowiest month is February with 2.2 inches.
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How many freezing nights does Renton have?
About 30 nights a year drop to 32 °F or below (NOAA 1991–2020); the coldest month, December, averages a low of 37 °F.