Friday Harbor climate

Friday Harbor Weather in October

NOAA 1991-2020 normals for Friday Harbor AP, 1.4 km from Friday Harbor

Average highs run from 63°F on October 1 to 54°F on October 31, and lows from 46°F to 42°F. Normal precipitation for the month is 2.34 in over about 15 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Friday Harbor, in °F, with the record for each date.20406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
59°F
Average low
44°F
Precipitation
2.34 in
Snowfall
0.1 in
Record high
78°FOct 7, 2023
Record low
26°FOct 31, 2002
Chance of a freeze
23%
Daylight
11 h 39 min to 9 h 57 min
Cloud cover
69%
Humidity
83%
Dew point
46°F
Wind
6.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Oct 163°F46°F73°F 200336°F 199945%0%
Oct 263°F46°F76°F 202238°F 200945%0%
Oct 363°F46°F70°F 202237°F 199946%0%
Oct 462°F46°F72°F 200137°F 200046%0%
Oct 562°F46°F72°F 201438°F 201746%0%
Oct 662°F45°F73°F 202238°F 200046%0%
Oct 761°F45°F78°F 202339°F 200047%0%
Oct 861°F45°F73°F 202235°F 200847%0%
Oct 961°F45°F73°F 202231°F 201948%0%
Oct 1060°F45°F67°F 202233°F 201948%0%
Oct 1160°F45°F65°F 199832°F 200948%0%
Oct 1260°F45°F67°F 202230°F 200949%0%
Oct 1359°F44°F71°F 202235°F 201749%0%
Oct 1459°F44°F71°F 202235°F 200249%0%
Oct 1559°F44°F72°F 202232°F 200850%0%
Oct 1658°F44°F73°F 202233°F 199950%0%
Oct 1758°F44°F69°F 201836°F 201050%0%
Oct 1858°F44°F67°F 201434°F 200851%0%
Oct 1957°F44°F70°F 201434°F 200851%0%
Oct 2057°F43°F64°F 201637°F 199951%0%
Oct 2157°F43°F64°F 199833°F 200851%0%
Oct 2257°F43°F62°F 200335°F 201252%0%
Oct 2356°F43°F68°F 200736°F 200252%0%
Oct 2456°F43°F63°F 201633°F 200452%0%
Oct 2556°F43°F62°F 201529°F 202052%0%
Oct 2656°F43°F65°F 201832°F 199953%0%
Oct 2755°F42°F62°F 201733°F 200153%0%
Oct 2855°F42°F65°F 201632°F 202353%0%
Oct 2955°F42°F63°F 201731°F 201953%0%
Oct 3055°F42°F62°F 201526°F 200654%0%
Oct 3154°F42°F59°F 201526°F 200254%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Friday Harbor, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 7:12 AM, sunset 6:51 PM
October 31
sunrise 7:57 AM, sunset 5:54 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094276 (Friday Harbor AP), public domain. Records: NOAA GHCN-Daily, station USW00094276, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.