Weather in Black Diamond, WA
Black Diamond, Tuesday, 3 November, 09:31
Overcast. Feels like 48°. High 54°, low 40°.
Monthly outlook for Black Diamond, WA: average high 55°, average low 42.9°. That is 2.5° above the climate normal for November. Precipitation is expected on 9 days (about 3.6 inches), against a normal of 10 days and 4.1 inches. The warmest day looks like 7 November (66°), the coolest 18 November (37°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 3 November – 12 November | 57.9° | 51.4° | +3.6° |
| 13 November – 22 November | 50.1° | 48.2° | +1.1° |
| 23 November – 2 December | at normal | 45.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Kent (10 mi).
0.14
Black Diamond, Wednesday, 4 November
Rain. High 56°, low 38°.
0.03Black Diamond, Thursday, 5 November
Light rain. High 56°, low 44°.
0.4Black Diamond, Friday, 6 November
Rain. High 58°, low 45°.
0.65Black Diamond, Saturday, 7 November
Rain. High 66°, low 50°.
0.79Black Diamond, Sunday, 8 November
Rain. High 52°, low 43°.
0Black Diamond, Monday, 9 November
Overcast. High 51°, low 38°.
0.03Black Diamond, Tuesday, 10 November
Light rain. High 63°, low 46°.
0Black Diamond, Wednesday, 11 November
Overcast. High 65°, low 43°.
0Black Diamond, Thursday, 12 November
Overcast. High 58°, low 46°.
0.1Black Diamond, Friday, 13 November
Light rain. High 54°, low 46°.
0.34Black Diamond, Saturday, 14 November
Rain. High 49°, low 45°.
0.56Black Diamond, Sunday, 15 November
Rain. High 52°, low 46°.
0.4Black Diamond, Monday, 16 November
Rain. High 52°, low 41°.
0.12Black Diamond, Tuesday, 17 November
Light rain. High 44°, low 38°.
0.03Black Diamond, Wednesday, 18 November
Light rain. High 49°, low 37°.
0.31Black Diamond, Thursday, 19 November
Climate normal for this date — 60-year average.
0.24Black Diamond, Friday, 20 November
Climate normal for this date — 60-year average.
0.24Black Diamond, Saturday, 21 November
Climate normal for this date — 60-year average.
0.26Black Diamond, Sunday, 22 November
Climate normal for this date — 60-year average.
0.35Black Diamond, Monday, 23 November
Climate normal for this date — 60-year average.
0.33Black Diamond, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.35Black Diamond, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.22Black Diamond, Thursday, 26 November
Climate normal for this date — 60-year average.
0.3Black Diamond, Friday, 27 November
Climate normal for this date — 60-year average.
0.22Black Diamond, Saturday, 28 November
Climate normal for this date — 60-year average.
0.21Black Diamond, Sunday, 29 November
Climate normal for this date — 60-year average.
0.26Black Diamond, Monday, 30 November
Climate normal for this date — 60-year average.
0.25Black Diamond, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.32Black Diamond, Wednesday, 2 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 Black Diamond, 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 Black Diamond, 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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