Sylvan, OR

Unincorporated community in Washington County, Oregon

Sylvan is a small unincorporated community in Washington County, Oregon. It is 1.6 miles W of West Haven-Sylvan, the nearest town. Its ZIP code is 97221.

Sylvan at a glance

State
Oregon
County
Washington County
ZIP code
97221
Nearest town
West Haven-Sylvan (1.6 mi)
Time zone
America/Los Angeles
Coordinates
45.5092, -122.7344

Weather in Sylvan now

Loading the National Weather Service forecast…

Sylvan weather by the hour

Sylvan weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of Sylvan.

This week in Sylvan

Sunrise, sunset and moon in Sylvan

What is the weather usually like in Sylvan?

Csb
Warm-summer Mediterranean climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

32°46°59°73°86°47°37°Jan51°39°Feb56°41°Mar61°44°Apr68°49°May73°53°Jun80°58°Jul81°59°Aug75°55°Sep63°48°Oct52°42°Nov46°37°Dec

Average precipitation (inches)

6.4"Jan4.7"Feb4.8"Mar3.6"Apr2.6"May1.5"Jun0.4"Jul0.5"Aug1.6"Sep4.0"Oct6.6"Nov7.4"Dec

Best time to visit Sylvan: June to September, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station PORTLAND KGW-TV, OR US (USC00356749), adjusted for the elevation of Sylvan.

Sylvan weather month by month

January
47° 37°F
6.4 in of rain · 14 wet days❄ 1.3 in of snow
February
51° 39°F
4.7 in of rain · 10 wet days❄ 1.4 in of snow
March
56° 41°F
4.8 in of rain · 12 wet days
April
61° 44°F
3.6 in of rain · 11 wet days
May
68° 49°F
2.6 in of rain · 8 wet days
June
73° 53°F
1.5 in of rain · 5 wet days
July
80° 58°F
0.4 in of rain · 2 wet days
August
81° 59°F
0.5 in of rain · 2 wet days
September
75° 55°F
1.6 in of rain · 4 wet days
October
63° 48°F
4.0 in of rain · 9 wet days
November
52° 42°F
6.6 in of rain · 13 wet days
December
46° 37°F
7.4 in of rain · 14 wet days❄ 0.9 in of snow

Sunrise and sunset in Sylvan through the year

MonthSunriseSunsetDaylight
January7:45 AM4:55 PM9 h 10 min
February7:10 AM5:39 PM10 h 29 min
March7:21 AM7:18 PM11 h 57 min
April6:23 AM7:58 PM13 h 35 min
May5:38 AM8:36 PM14 h 58 min
June5:19 AM9:03 PM15 h 43 min
July5:35 AM8:58 PM15 h 23 min
August6:10 AM8:20 PM14 h 9 min
September6:48 AM7:23 PM12 h 35 min
October7:26 AM6:26 PM11 h 0 min
November7:08 AM4:42 PM9 h 33 min
December7:42 AM4:29 PM8 h 47 min

Times for the 15th of each month, local time (America/Los Angeles).

What is the weather like in Sylvan?

Sylvan has a warm-summer mediterranean climate. The warmest month is August, with an average high of 81°F (27°C), and the coldest is January, with average lows of 37°F (3°C).

It gets about 44.1 inches (1,119 mm) of precipitation a year. The wettest month is December and the driest is July. Snow is common: about 4 inches fall in an average year.

The best time to visit Sylvan is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.

Webcams near Sylvan

The closest live webcam is Portland: US26 at Sylvan Interchange - Skyline, 0.1 miles SW of Sylvan.

Portland: US26 at Sylvan Interchange - SkylinePortland · 0.1 mi SWOn Windy
Durham: Washington County - Barnes Rd at Burnside RdDurham · 0.7 mi NWOn Windy
Durham: US26 at Camelot Court OverpassDurham · 0.7 mi WOn Windy
Portland: US26 at Zoo BridgePortland · 0.8 mi EOn Windy
West Haven: Washington County - Barnes Rd at Burnside Rdunknown · 0.8 mi NWOn Windy
Portland: US26 at Washington ParkPortland · 1.2 mi EOn Windy
Portland: US26 at Jefferson Off-RampPortland · 1.5 mi EOn Windy
Portland: Southwest Hills: US26 EB at Vista Ridge Tunnel (West End)Portland · 1.8 mi EOn Windy
Portland: Southwest Hills: US26 WB at Vista Ridge Tunnel (West End)Portland · 1.8 mi EOn Windy

Webcams: Windy.com. Distances in a straight line from Sylvan.

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Map of Sylvan, OR

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Sylvan Street View

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Towns near Sylvan

Other communities near Sylvan

Questions about Sylvan

Where is Sylvan, OR?

Sylvan is an unincorporated community in Washington County, Oregon, 1.6 miles W of West Haven-Sylvan.

What county is Sylvan in?

Sylvan is in Washington County, Oregon.

What is the ZIP code of Sylvan, OR?

The ZIP code for Sylvan is 97221.

What is the nearest town to Sylvan?

West Haven-Sylvan, 1.6 miles away.

Are there webcams near Sylvan?

Yes. The closest is Portland: US26 at Sylvan Interchange - Skyline, 0.1 miles away.

What is the hottest month in Sylvan?

August, with an average high of 81°F (27°C).

What is the coldest month in Sylvan?

January, with an average low of 37°F (3°C).

How much does it rain in Sylvan?

About 44.1 inches (1,119 mm) a year; the wettest month is December.

Does it snow in Sylvan?

Yes, about 4 inches of snow fall in an average year.

When is the best time to visit Sylvan?

June to September, when temperatures are most pleasant and rainy days are fewer.

What climate does Sylvan have?

Warm-summer mediterranean (Köppen Csb).

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