Weather in Mount Washington, CA
Mount Washington, Tuesday, 20 October, 06:51
Clear. Feels like 63°. High 82°, low 63°.
Monthly outlook for Mount Washington, CA: average high 76.2°, average low 63.1°. That is 0.4° below the climate normal for October. Precipitation is expected on 3 days (about 2.4 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 26 October (85.9°), the coolest 24 October (52.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 77.6° | 77.5° | +0.1° |
| 30 October – 8 November | 73.8° | 74.8° | -0.6° |
| 9 November – 18 November | at normal | 71.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — South Pasadena (4 mi).
0.76
Mount Washington, Wednesday, 21 October
Rain. High 74°, low 58°.
1.5Mount Washington, Thursday, 22 October
Heavy rain. High 64°, low 57°.
0Mount Washington, Friday, 23 October
Light rain. High 68°, low 53°.
0
Mount Washington, Saturday, 24 October
Clear. High 77°, low 52°.
0Mount Washington, Sunday, 25 October
Clear. High 76°, low 54°.
0Mount Washington, Monday, 26 October
Clear. High 86°, low 64°.
0
Mount Washington, Tuesday, 27 October
Overcast. High 86°, low 73°.
0Mount Washington, Wednesday, 28 October
Overcast. High 85°, low 73°.
0Mount Washington, Thursday, 29 October
Overcast. High 78°, low 68°.
0Mount Washington, Friday, 30 October
Clear. High 76°, low 67°.
0Mount Washington, Saturday, 31 October
Overcast. High 77°, low 68°.
0.13Mount Washington, Sunday, 1 November
Light rain. High 71°, low 66°.
0.01Mount Washington, Monday, 2 November
Light rain. High 70°, low 65°.
0Mount Washington, Tuesday, 3 November
Overcast. High 73°, low 64°.
0
Mount Washington, Wednesday, 4 November
Mostly clear. High 75°, low 65°.
0Mount Washington, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Mount Washington, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Mount Washington, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Mount Washington, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Mount Washington, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Mount Washington, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Mount Washington, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Mount Washington, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Mount Washington, Wednesday, 18 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 Mount Washington, CA 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 Mount Washington, CA 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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