Weather in San Anselmo, CA
San Anselmo, Monday, 19 October, 16:01
Overcast. Feels like 63°. High 66°, low 54°.
Monthly outlook for San Anselmo, CA: average high 66.6°, average low 54.6°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 24 October (71.7°), the coolest 23 October (46.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 68.6° | 68° | +0.4° |
| 29 October – 7 November | 63.1° | 65.6° | -1.4° |
| 8 November – 17 November | at normal | 62.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Marin City (8 mi).
0.02
San Anselmo, Tuesday, 20 October
Light rain. High 70°, low 49°.
0.02San Anselmo, Wednesday, 21 October
Light rain. High 71°, low 52°.
0.05San Anselmo, Thursday, 22 October
Light rain. High 63°, low 52°.
0
San Anselmo, Friday, 23 October
Clear. High 69°, low 46°.
0
San Anselmo, Saturday, 24 October
Partly cloudy. High 72°, low 49°.
0San Anselmo, Sunday, 25 October
Overcast. High 69°, low 51°.
0San Anselmo, Monday, 26 October
Overcast. High 70°, low 60°.
0San Anselmo, Tuesday, 27 October
Overcast. High 69°, low 59°.
0San Anselmo, Wednesday, 28 October
Overcast. High 69°, low 60°.
0San Anselmo, Thursday, 29 October
Overcast. High 66°, low 57°.
0.09San Anselmo, Friday, 30 October
Light rain. High 62°, low 54°.
0San Anselmo, Saturday, 31 October
Light rain. High 66°, low 55°.
0.68San Anselmo, Sunday, 1 November
Rain. High 60°, low 57°.
0.93San Anselmo, Monday, 2 November
Heavy rain. High 63°, low 60°.
0.03San Anselmo, Tuesday, 3 November
Light rain. High 62°, low 58°.
0.03
San Anselmo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06San Anselmo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07San Anselmo, Friday, 6 November
Climate normal for this date — 60-year average.
0.09San Anselmo, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08San Anselmo, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09San Anselmo, Monday, 9 November
Climate normal for this date — 60-year average.
0.14San Anselmo, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1San Anselmo, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08San Anselmo, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14San Anselmo, Friday, 13 November
Climate normal for this date — 60-year average.
0.06San Anselmo, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09San Anselmo, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12San Anselmo, Monday, 16 November
Climate normal for this date — 60-year average.
0.13San Anselmo, Tuesday, 17 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 San Anselmo, 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 San Anselmo, 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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