Weather in Friday Harbor, WA
Friday Harbor, Sunday, 18 October, 04:01
Mostly clear. Feels like 44°. High 57°, low 44°.
Monthly outlook for Friday Harbor, WA: average high 53°, average low 47.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 8 days and 2.6 inches. The warmest day looks like 19 October (59.9°), the coolest 18 October (44°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 54.1° | 52.8° | +0.8° |
| 28 October – 6 November | 51° | 50.9° | +0.1° |
| 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 60°, low 48°.
0
Friday Harbor, Tuesday, 20 October
Clear. High 56°, low 54°.
0
Friday Harbor, Wednesday, 21 October
Overcast. High 55°, low 51°.
0
Friday Harbor, Thursday, 22 October
Light rain. High 55°, low 49°.
0Friday Harbor, Friday, 23 October
Overcast. High 50°, low 44°.
0Friday Harbor, Saturday, 24 October
Overcast. High 52°, low 46°.
0.06Friday Harbor, Sunday, 25 October
Light rain. High 50°, low 47°.
0Friday Harbor, Monday, 26 October
Overcast. High 53°, low 47°.
0Friday Harbor, Tuesday, 27 October
Clear. High 53°, low 46°.
0Friday Harbor, Wednesday, 28 October
Clear. High 53°, low 47°.
0Friday Harbor, Thursday, 29 October
Overcast. High 53°, low 48°.
0.01Friday Harbor, Friday, 30 October
Light rain. High 52°, low 49°.
0.36Friday Harbor, Saturday, 31 October
Rain. High 52°, low 47°.
0.15Friday Harbor, Sunday, 1 November
Light rain. High 48°, low 46°.
0.18Friday Harbor, Monday, 2 November
Light rain. High 49°, low 46°.
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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