Weather in John Sam Lake, WA
John Sam Lake, Thursday, 5 November, 09:59
Light rain. Feels like 49°. High 55°, low 47°.
Monthly outlook for John Sam Lake, WA: average high 54.3°, average low 45.4°. That is 2.7° above the climate normal for November. Precipitation is expected on 9 days (about 2.8 inches), against a normal of 10 days and 5.0 inches. The warmest day looks like 7 November (61.7°), the coolest 9 November (38.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 5 November – 14 November | 56.2° | 50.4° | +3.2° |
| 15 November – 24 November | 51° | 46.9° | +2.3° |
| 25 November – 4 December | at normal | 44.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Marysville (4 mi).
0.39John Sam Lake, Friday, 6 November
Rain. High 55°, low 48°.
0.3John Sam Lake, Saturday, 7 November
Rain. High 62°, low 51°.
0
John Sam Lake, Sunday, 8 November
Overcast. High 56°, low 44°.
0.2John Sam Lake, Monday, 9 November
Light rain. High 50°, low 38°.
0.56John Sam Lake, Tuesday, 10 November
Rain. High 60°, low 49°.
0John Sam Lake, Wednesday, 11 November
Overcast. High 60°, low 46°.
0John Sam Lake, Thursday, 12 November
Overcast. High 61°, low 44°.
0.09John Sam Lake, Friday, 13 November
Light rain. High 52°, low 47°.
0.11John Sam Lake, Saturday, 14 November
Light rain. High 52°, low 47°.
0.68John Sam Lake, Sunday, 15 November
Rain. High 50°, low 48°.
0.13John Sam Lake, Monday, 16 November
Light rain. High 53°, low 46°.
0John Sam Lake, Tuesday, 17 November
Overcast. High 55°, low 48°.
0.29John Sam Lake, Wednesday, 18 November
Light rain. High 50°, low 40°.
0.01John Sam Lake, Thursday, 19 November
Light rain. High 49°, low 39°.
0John Sam Lake, Friday, 20 November
Overcast. High 50°, low 44°.
0.31John Sam Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
0.26John Sam Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
0.45John Sam Lake, Monday, 23 November
Climate normal for this date — 60-year average.
0.37John Sam Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.37John Sam Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.25John Sam Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
0.35John Sam Lake, Friday, 27 November
Climate normal for this date — 60-year average.
0.26John Sam Lake, Saturday, 28 November
Climate normal for this date — 60-year average.
0.27John Sam Lake, Sunday, 29 November
Climate normal for this date — 60-year average.
0.31John Sam Lake, Monday, 30 November
Climate normal for this date — 60-year average.
0.32John Sam Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.36John Sam Lake, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.36John Sam Lake, Thursday, 3 December
Climate normal for this date — 60-year average.
0.29John Sam Lake, Friday, 4 December
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 John Sam Lake, 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 John Sam Lake, 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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