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Weather in West Haven-Sylvan, OR · National Weather Service + NOAA

West Haven-Sylvan has a long growing season

West Haven-Sylvan has mild winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 36°, and about 4 inches of snow falls in a normal winter. In November, a normal day reaches 52° and a normal night drops to 39°.

Winter 47°/36°Spring 61°/42°Summer 77°/54°Fall 63°/45°
Right now
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Sunrise 9:56 am · sunset 7:52 pm

Getting the latest forecast from the National Weather Service…

What stands out about West Haven-Sylvan’s weather

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

Climate →
A long growing season280 frost-free days, from Feb 25 to Dec 1.
A normal year

Where today sits in West Haven-Sylvan’s year

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

Full climate →
Winter
47° / 36°
1 days with an inch or more of snow
Spring
61° / 42°
Last frost around Feb 25
Summer
77° / 54°
11 days reach 90° in a normal year
Fall now
63° / 45°
First frost around Dec 1
26 daysuntil the usual first frost (Dec 1)
Best months to be outside
MayJunJulAugSepOct
Highs of 62–84° and lows of 40° or more
How much snow does West Haven-Sylvan get?About 4 inches a winter.When is it wettest?December, with 7.6 inches.Is it warmer than it used to be?+1.2° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in West Haven-Sylvan.

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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 West Haven-Sylvan itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Portland Kgw-tv, OR (4 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.