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Weather by month

Olympic weather, month by month

Last verified NOAA 1991–2020 normalsAmerica/Los Angeles time
Average highs, lows, rain, snow and daylight for every month. Measured at the Port Angeles (main visitor center) (90 ft, 1 mi from Olympic National Park Visitor Center) — with Quinault (rain forest) below, because the park's weather changes with elevation.
Aug high
67°F
hottest month
Jan low
37°F
coldest month
Rain + snowmelt
26.5in / yr
wettest: Nov
Snowfall
0.4in / yr
rare
Days ≥ 90°F
0/ yr
Nights ≤ 32°F
26/ yr

Port Angeles (main visitor center)

Month by month

Normals are 30-year averages (1991–2020). Crowds = each month’s share of the park’s busiest month, from NPS visitor counts. Sunrise and sunset are for the 15th of each month in 2027.
Average high and low, every monthbars run from the low to the high · tan strip = precipitation
comfortable highs 55–85°F40°60°32°January: average high 45°F, low 37°F, 3.8 in precipitation45°37°January: 3.8 in precipitationJFebruary: average high 46°F, low 37°F, 2.4 in precipitation46°37°February: 2.4 in precipitationFMarch: average high 49°F, low 39°F, 2.4 in precipitation49°39°March: 2.4 in precipitationMApril: average high 54°F, low 42°F, 1.6 in precipitation54°42°April: 1.6 in precipitationAMay: average high 60°F, low 48°F, 1.1 in precipitation60°48°May: 1.1 in precipitationMJune: average high 63°F, low 51°F, 1.1 in precipitation63°51°June: 1.1 in precipitationJJuly: average high 67°F, low 55°F, 0.6 in precipitation67°55°July: 0.6 in precipitationJAugust: average high 67°F, low 55°F, 0.7 in precipitation67°55°August: 0.7 in precipitationASeptember: average high 65°F, low 51°F, 1.2 in precipitation65°51°September: 1.2 in precipitationSOctober: average high 56°F, low 45°F, 3.2 in precipitation56°45°October: 3.2 in precipitationONovember: average high 49°F, low 40°F, 4.4 in precipitation49°40°November: 4.4 in precipitationNDecember: average high 44°F, low 37°F, 4.2 in precipitation44°37°December: 4.2 in precipitationDrain
MonthHighLowRainSnowWet daysSunriseSunsetDaylightCrowds
Jan45°37°3.8″—197:59 AM4:49 PM8h 50m13
Feb46°37°2.4″—147:21 AM5:37 PM10h 16m15
Mar49°39°2.4″—167:28 AM7:19 PM11h 51m21
Apr54°42°1.6″—126:26 AM8:04 PM13h 38m21
May60°48°1.1″—115:37 AM8:45 PM15h 09m40
Jun63°51°1.1″—105:15 AM9:15 PM15h 59m48
Jul67°55°0.6″—65:32 AM9:10 PM15h 38m80
Aug67°55°0.7″—66:10 AM8:29 PM14h 19m100
Sep65°51°1.2″—86:52 AM7:28 PM12h 36m67
Oct56°45°3.2″—157:34 AM6:27 PM10h 54m42
Nov49°40°4.4″—187:20 AM4:38 PM9h 18m28
Dec44°37°4.2″0.4″187:57 AM4:23 PM8h 26m16

Sweet spot: May, June and October combine average highs between 55°F and 85°F with crowds under 60% of the peak month. Check what is open in those months — quiet can also mean closed roads.

Also measured at

Quinault (rain forest)

The wettest, west-side rain forests. 286 ft, 0.7 mi from Quinault Rain Forest Ranger Station.
MonthHighLowRainWet days
Jan45°35°24.6″21
Feb48°35°13.3″21
Mar51°36°17.2″24
Apr56°39°12.4″19
May63°43°6.9″15
Jun67°47°4.1″13
Jul73°51°2.3″7
Aug73°52°3.1″9
Sep69°49°6.1″12
Oct59°43°16.0″18
Nov49°38°24.6″22
Dec44°35°20.8″22

How to read this

These are NOAA’s official 1991–2020 climate normals for one weather station, not a model of the whole park. The station is the one with complete temperature and precipitation normals nearest to a visitor center (we chose Port Angeles (main visitor center) because it is Olympic National Park Visitor Center). Highs and lows are daily averages for the month; “wet days” are days with at least 0.01 inch of precipitation. Mountain parks can be 10–20 °F cooler at their high points than at the station, and the NPS weather page for Olympic is the place for current conditions and seasonal closures.

Sunrise and sunset are computed with the NOAA solar equations for the park’s coordinates and shown in America/Los Angeles time for the 15th of each month of 2027; they are accurate to about a minute.

Sources · 3

  1. 1.U.S. Climate Normals 1991–2020 — monthly normals station inventory · National Centers for Environmental Information (NOAA)
  2. 2.Olympic National Park — Weather (nps.gov) · National Park Service
  3. 3.Olympic National Park — Visitor Use Statistics · National Park Service (IRMA)

FAQ

Olympic weather questions

What is the hottest month at Olympic?
August, with an average high of 67°F and an average low of 55°F at Port Angeles (main visitor center) (NOAA 1991–2020 normals). The station averages 0 days a year at or above 90°F.
How cold does Olympic get in winter?
January is the coldest month, averaging a low of 37°F and a high of 45°F at Port Angeles (main visitor center). About 26 nights a year drop to freezing or below.
Does it snow at Olympic?
Port Angeles (main visitor center) records almost no snowfall (0.4 inches a year). Higher elevations in the park can differ.
When is the rainy season at Olympic?
November is the wettest month on average (4.4 inches of precipitation at Port Angeles (main visitor center)); the station's annual total is 26.5 inches.
How many hours of daylight does Olympic get?
About 15h 59m on June 15 and 8h 26m on December 15 (sunrise 5:15 AM, sunset 9:15 PM in June; 7:57 AM to 4:23 PM in December, America/Los Angeles time).
What is the best month to visit Olympic for weather?
By NOAA's normals, average highs sit between 55°F and 85°F in May, June, July, August, September and October. Of those, May, June and October are also well below the park's peak crowds. Weather in the park varies with elevation; this is the Port Angeles (main visitor center) station.

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