Weather in Portola, CA
Portola, Friday, 13 November, 23:35
Overcast. Feels like 36°. High 46°, low 35°.
Monthly outlook for Portola, CA: average high 39°, average low 24.5°. That is 2.6° below the climate normal for November. Precipitation is expected on 8 days (about 6.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 14 November (50.8°), the coolest 21 November (8.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 40.4° | 45° | -2.5° |
| 23 November – 2 December | 36.7° | 41.1° | -2.4° |
| 3 December – 12 December | at normal | 38.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Beckwourth (4 mi).
0Portola, Saturday, 14 November
Overcast. High 51°, low 36°.
0.4
Portola, Sunday, 15 November
Snow. High 50°, low 35°.
0.33Portola, Monday, 16 November
Snow. High 41°, low 21°.
0
Portola, Tuesday, 17 November
Partly cloudy. High 42°, low 23°.
0.64Portola, Wednesday, 18 November
Snow. High 39°, low 28°.
1.54Portola, Thursday, 19 November
Snow. High 37°, low 27°.
0.01Portola, Friday, 20 November
Light snow. High 32°, low 11°.
0Portola, Saturday, 21 November
Overcast. High 33°, low 8°.
0Portola, Sunday, 22 November
Overcast. High 34°, low 12°.
0Portola, Monday, 23 November
Overcast. High 37°, low 22°.
0.04Portola, Tuesday, 24 November
Snow. High 36°, low 21°.
1.61Portola, Wednesday, 25 November
Snow. High 38°, low 34°.
1.25Portola, Thursday, 26 November
Snow. High 37°, low 31°.
0Portola, Friday, 27 November
Overcast. High 36°, low 24°.
0Portola, Saturday, 28 November
Overcast. High 36°, low 23°.
0.17Portola, Sunday, 29 November
Climate normal for this date — 60-year average.
0.17Portola, Monday, 30 November
Climate normal for this date — 60-year average.
0.22
Portola, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.23Portola, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.21Portola, Thursday, 3 December
Climate normal for this date — 60-year average.
0.15Portola, Friday, 4 December
Climate normal for this date — 60-year average.
0.13Portola, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Portola, Sunday, 6 December
Climate normal for this date — 60-year average.
0.21Portola, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Portola, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.12Portola, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.22Portola, Thursday, 10 December
Climate normal for this date — 60-year average.
0.17Portola, Friday, 11 December
Climate normal for this date — 60-year average.
0.19Portola, Saturday, 12 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 Portola, 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 Portola, 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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