Weather in Sanitarium, CA
Sanitarium, Wednesday, 28 October, 10:49
Mostly clear. Feels like 59°. High 71°, low 45°.
Monthly outlook for Sanitarium, CA: average high 67.4°, average low 50.4°. That is 0.8° below the climate normal for October. Precipitation is expected on 5 days (about 3.8 inches), against a normal of 3 days and 1.4 inches. The warmest day looks like 3 November (81.2°), the coolest 1 November (40.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 70° | 70.5° | -0.3° |
| 7 November – 16 November | 63° | 65.6° | -1.4° |
| 17 November – 26 November | at normal | 62.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Helena (3 mi).
0
Sanitarium, Thursday, 29 October
Overcast. High 72°, low 46°.
0
Sanitarium, Friday, 30 October
Clear. High 70°, low 50°.
0Sanitarium, Saturday, 31 October
Overcast. High 65°, low 48°.
0Sanitarium, Sunday, 1 November
Clear. High 66°, low 40°.
0
Sanitarium, Monday, 2 November
Partly cloudy. High 74°, low 46°.
0Sanitarium, Tuesday, 3 November
Overcast. High 81°, low 55°.
0.12
Sanitarium, Wednesday, 4 November
Light rain. High 67°, low 55°.
0Sanitarium, Thursday, 5 November
Overcast. High 71°, low 53°.
0.02Sanitarium, Friday, 6 November
Light rain. High 63°, low 55°.
1.9Sanitarium, Saturday, 7 November
Heavy rain. High 61°, low 52°.
0Sanitarium, Sunday, 8 November
Light rain. High 68°, low 52°.
0Sanitarium, Monday, 9 November
Overcast. High 68°, low 51°.
0.52Sanitarium, Tuesday, 10 November
Rain. High 57°, low 53°.
0.24Sanitarium, Wednesday, 11 November
Light rain. High 64°, low 57°.
0.97Sanitarium, Thursday, 12 November
Heavy rain. High 61°, low 49°.
0.19Sanitarium, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Sanitarium, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Sanitarium, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Sanitarium, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Sanitarium, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Sanitarium, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.12Sanitarium, Thursday, 19 November
Climate normal for this date — 60-year average.
0.15
Sanitarium, Friday, 20 November
Climate normal for this date — 60-year average.
0.18Sanitarium, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15Sanitarium, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Sanitarium, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Sanitarium, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Sanitarium, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.07Sanitarium, Thursday, 26 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 Sanitarium, 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 Sanitarium, 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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