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Weather in Bothell, WA · National Weather Service + NOAA

Bothell has milder winters than most of Washington

Bothell has mild winters and cool summers. A typical July afternoon reaches 76°, a January night drops to 36°, and about 4 inches of snow falls in a normal winter. A typical November afternoon reaches 51°, and nights fall to 39°.

Winter 48°/36°Spring 59°/42°Summer 74°/54°Fall 61°/45°
Right now
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Sunrise 9:55 am · sunset 7:49 pm

Getting the latest forecast from the National Weather Service…

What stands out about Bothell’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Milder winters than most of WashingtonJanuary nights average 36°, milder than 581 of 639 Washington towns.Cool summersJuly afternoons average 76°, cooler than 98% of U.S. towns.A long growing season259 frost-free days, from Mar 8 to Nov 23.
A normal year

Where today sits in Bothell’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
48° / 36°
2 days with an inch or more of snow
Spring
59° / 42°
Last frost around Mar 8
Summer
74° / 54°
2 days reach 90° in a normal year
Fall now
61° / 45°
First frost around Nov 23
21 daysuntil the usual first frost (Nov 23)
Best months to be outside
MayJunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Bothell get?About 4 inches a winter.When is it wettest?November, with 5.5 inches.Is it warmer than it used to be?+1.0° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Bothell.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Bothell itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Seattle Sand Pt WSFO, WA (6 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.