Keystone, WA

Unincorporated community in Island County, Washington

Keystone is a small unincorporated community in Island County, Washington. It is 4.4 miles NW of Coupeville, the nearest town. Its ZIP code is 98239.

Keystone at a glance

State
Washington
County
Island County
ZIP code
98239
Nearest town
Coupeville (4.4 mi)
Time zone
America/Los Angeles
Coordinates
48.1639, -122.6306

Weather in Keystone now

Loading the National Weather Service forecast…

Keystone weather by the hour

Keystone weather for the next 7 days

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

This week in Keystone

Sunrise, sunset and moon in Keystone

What is the weather usually like in Keystone?

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

Average high and low temperature (°F)

31°42°54°65°76°44°37°Jan47°36°Feb51°38°Mar56°42°Apr62°47°May65°50°Jun70°53°Jul71°53°Aug66°49°Sep56°44°Oct49°40°Nov44°36°Dec

Average precipitation (inches)

2.5"Jan1.9"Feb2.0"Mar1.9"Apr1.7"May1.3"Jun0.8"Jul0.7"Aug1.2"Sep2.1"Oct3.1"Nov2.6"Dec

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

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station COUPEVILLE 1 S, WA US (USC00451783), adjusted for the elevation of Keystone.

Keystone weather month by month

January
44° 37°F
2.5 in of rain · 8 wet days
February
47° 36°F
1.9 in of rain · 7 wet days
March
51° 38°F
2.0 in of rain · 7 wet days❄ 0.3 in of snow
April
56° 42°F
1.9 in of rain · 6 wet days
May
62° 47°F
1.7 in of rain · 6 wet days
June
65° 50°F
1.3 in of rain · 4 wet days
July
70° 53°F
0.8 in of rain · 2 wet days
August
71° 53°F
0.7 in of rain · 2 wet days
September
66° 49°F
1.2 in of rain · 4 wet days
October
56° 44°F
2.1 in of rain · 7 wet days
November
49° 40°F
3.1 in of rain · 9 wet days❄ 0.6 in of snow
December
44° 36°F
2.6 in of rain · 9 wet days❄ 1.6 in of snow

Sunrise and sunset in Keystone through the year

MonthSunriseSunsetDaylight
January7:53 AM4:46 PM8 h 52 min
February7:14 AM5:34 PM10 h 19 min
March7:21 AM7:17 PM11 h 56 min
April6:18 AM8:02 PM13 h 44 min
May5:28 AM8:45 PM15 h 16 min
June5:07 AM9:14 PM16 h 6 min
July5:24 AM9:08 PM15 h 43 min
August6:03 AM8:25 PM14 h 21 min
September6:46 AM7:24 PM12 h 38 min
October7:29 AM6:23 PM10 h 54 min
November7:16 AM4:34 PM9 h 17 min
December7:52 AM4:18 PM8 h 26 min

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

What is the weather like in Keystone?

Keystone has a warm-summer mediterranean climate. The warmest month is August, with an average high of 71°F (21°C), and the coldest is February, with average lows of 36°F (2°C).

It gets about 21.7 inches (552 mm) of precipitation a year. The wettest month is November and the driest is August. Snow is common: about 2 inches fall in an average year.

The best time to visit Keystone 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 Keystone

The closest live webcam is Oak Harbor › East: WSF Coupeville Terminal, 2.0 miles W of Keystone.

Oak Harbor › East: WSF Coupeville TerminalOak Harbor · 2.0 mi WOn Windy
Oak Harbor › East: WSF Coupeville StreetOak Harbor · 2.0 mi WOn Windy
Port Townsend › East: WSF - TerminalPort Townsend · 7.0 mi SWOn Windy
Port Townsend › North: Rotary Park - Coupeville/Port TownsendPort Townsend · 7.0 mi SWOn Windy
Oak Harbor: SR 20 at MP 30.8: SW Swantown AveOak Harbor · 8.4 mi NOn Windy
Oak Harbor: SR 20 at MP 31.4: Pioneer WayOak Harbor · 8.6 mi NOn Windy
Oak Harbor: SR 20 at MP 32.2: E Whidbey AveOak Harbor · 9.3 mi NOn Windy
Oak Harbor › North: SR 532 at MP 0: Sunrise BlvdOak Harbor · 9.6 mi NEOn Windy
Oak Harbor: SR 20 at MP 32.6: NE 7th AveOak Harbor · 9.7 mi NOn Windy

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

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Map of Keystone, WA

Tap any road on the map to see it in Street View below. Map: © OpenStreetMap contributors.

Keystone Street View

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Towns near Keystone

Other communities near Keystone

Questions about Keystone

Where is Keystone, WA?

Keystone is an unincorporated community in Island County, Washington, 4.4 miles NW of Coupeville.

What county is Keystone in?

Keystone is in Island County, Washington.

What is the ZIP code of Keystone, WA?

The ZIP code for Keystone is 98239.

What is the nearest town to Keystone?

Coupeville, 4.4 miles away.

Are there webcams near Keystone?

Yes. The closest is Oak Harbor › East: WSF Coupeville Terminal, 2.0 miles away.

What is the hottest month in Keystone?

August, with an average high of 71°F (21°C).

What is the coldest month in Keystone?

February, with an average low of 36°F (2°C).

How much does it rain in Keystone?

About 21.7 inches (552 mm) a year; the wettest month is November.

Does it snow in Keystone?

Yes, about 2 inches of snow fall in an average year.

When is the best time to visit Keystone?

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

What climate does Keystone have?

Warm-summer mediterranean (Köppen Csb).

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