Weather in Black Diamond, WA
Black Diamond, Sunday, 1 November, 14:46
Clear. Feels like 48°. High 48°, low 39°.
Monthly outlook for Black Diamond, WA: average high 54.7°, average low 41.7°. That is 1.9° above the climate normal for November. Precipitation is expected on 11 days (about 3.5 inches), against a normal of 10 days and 4.1 inches. The warmest day looks like 7 November (63.4°), the coolest 7 November (36.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 56.1° | 51.9° | +2.3° |
| 11 November – 20 November | 52.3° | 49.1° | +1.7° |
| 21 November – 30 November | at normal | 45.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Kent (10 mi).
0
Black Diamond, Monday, 2 November
Overcast. High 54°, low 37°.
0Black Diamond, Tuesday, 3 November
Overcast. High 58°, low 40°.
0.14
Black Diamond, Wednesday, 4 November
Rain. High 57°, low 38°.
0.06Black Diamond, Thursday, 5 November
Light rain. High 55°, low 45°.
0.36Black Diamond, Friday, 6 November
Rain. High 55°, low 40°.
0.21Black Diamond, Saturday, 7 November
Light rain. High 63°, low 37°.
0.47Black Diamond, Sunday, 8 November
Rain. High 54°, low 42°.
0Black Diamond, Monday, 9 November
Overcast. High 57°, low 39°.
0Black Diamond, Tuesday, 10 November
Light rain. High 60°, low 45°.
0.58Black Diamond, Wednesday, 11 November
Rain. High 61°, low 46°.
0.13Black Diamond, Thursday, 12 November
Light rain. High 55°, low 46°.
0.63Black Diamond, Friday, 13 November
Rain. High 51°, low 42°.
0.28Black Diamond, Saturday, 14 November
Rain. High 48°, low 42°.
0.31Black Diamond, Sunday, 15 November
Light rain. High 50°, low 43°.
0.34Black Diamond, Monday, 16 November
Rain. High 49°, low 44°.
0.26Black Diamond, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.19Black Diamond, Wednesday, 18 November
Climate normal for this date — 60-year average.
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.
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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