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Weather in Index, WA · National Weather Service + NOAA

Index is snow country

Index has mild, snowy winters and cool summers, with plenty of rain. A typical July afternoon reaches 74°, a January night drops to 32°, and about 44 inches of snow falls in a normal winter. In November, a normal day reaches 47° and a normal night drops to 36°.

Winter 43°/32°Spring 57°/38°Summer 72°/50°Fall 58°/41°
Right now
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Sunrise 9:52 am · sunset 7:46 pm

Getting the latest forecast from the National Weather Service…

What stands out about Index’s weather

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

Climate →
Snow countryAbout 44 inches a winter, more than 535 of 575 Washington towns.Cool summersJuly afternoons average 74°, cooler than 98% of U.S. towns.A wet climate99 inches of rain and melted snow a year, more than 100% of U.S. towns.
A normal year

Where today sits in Index’s year

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

Full climate →
Winter
43° / 32°
14 days with an inch or more of snow
Spring
57° / 38°
Last frost around Apr 14
Summer
72° / 50°
5 days reach 90° in a normal year
Fall now
58° / 41°
First frost around Oct 29
Pastthe usual first frost (Oct 29). Last frost next spring: Apr 14
Best months to be outside
MayJunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Index get?About 44 inches a winter.When is it wettest?November, with 15.2 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 Index.

Town Square →
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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 Index itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Baring, WA (5 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.