Weather in Friday Harbor, WA
Friday Harbor, Sunday, 18 October, 23:33
Overcast. Feels like 48°. High 58°, low 40°.
Monthly outlook for Friday Harbor, WA: average high 51.9°, average low 45.7°. That is 0.1° below the climate normal for October. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 8 days and 2.6 inches. The warmest day looks like 20 October (59.1°), the coolest 18 October (40.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 53.7° | 52.8° | +0.5° |
| 28 October – 6 November | 48.9° | 50.9° | -1.1° |
| 7 November – 16 November | at normal | 49.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Roche Harbor (6 mi).
0
Friday Harbor, Monday, 19 October
Partly cloudy. High 57°, low 45°.
0
Friday Harbor, Tuesday, 20 October
Clear. High 59°, low 46°.
0Friday Harbor, Wednesday, 21 October
Partly cloudy. High 55°, low 47°.
0.01
Friday Harbor, Thursday, 22 October
Light rain. High 54°, low 48°.
0
Friday Harbor, Friday, 23 October
Mostly clear. High 53°, low 48°.
0.07Friday Harbor, Saturday, 24 October
Light rain. High 51°, low 47°.
0.04Friday Harbor, Sunday, 25 October
Light rain. High 50°, low 47°.
0Friday Harbor, Monday, 26 October
Overcast. High 50°, low 48°.
0.13Friday Harbor, Tuesday, 27 October
Light rain. High 49°, low 46°.
0.04Friday Harbor, Wednesday, 28 October
Light rain. High 48°, low 43°.
0.03Friday Harbor, Thursday, 29 October
Light rain. High 50°, low 45°.
0Friday Harbor, Friday, 30 October
Overcast. High 47°, low 44°.
0.03Friday Harbor, Saturday, 31 October
Light rain. High 51°, low 47°.
0.11Friday Harbor, Sunday, 1 November
Light rain. High 49°, low 46°.
0.1Friday Harbor, Monday, 2 November
Light rain. High 48°, low 44°.
0.24Friday Harbor, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.2Friday Harbor, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Friday Harbor, Thursday, 5 November
Climate normal for this date — 60-year average.
0.23Friday Harbor, Friday, 6 November
Climate normal for this date — 60-year average.
0.2Friday Harbor, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15
Friday Harbor, Sunday, 8 November
Climate normal for this date — 60-year average.
0.22Friday Harbor, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Friday Harbor, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.21Friday Harbor, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.2Friday Harbor, Thursday, 12 November
Climate normal for this date — 60-year average.
0.22Friday Harbor, Friday, 13 November
Climate normal for this date — 60-year average.
0.2Friday Harbor, Saturday, 14 November
Climate normal for this date — 60-year average.
0.25Friday Harbor, Sunday, 15 November
Climate normal for this date — 60-year average.
0.19Friday Harbor, Monday, 16 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Friday Harbor, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Friday Harbor, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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