Weather in Jamestown, CA
Jamestown, Wednesday, 21 October, 10:00
Overcast. Feels like 62°. High 65°, low 52°.
Monthly outlook for Jamestown, CA: average high 68.9°, average low 50.8°. That is 0.2° below the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 1.1 inches. The warmest day looks like 27 October (75.6°), the coolest 24 October (47.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 69° | 70.5° | -0.8° |
| 31 October – 9 November | 68.9° | 66.3° | +1.5° |
| 10 November – 19 November | at normal | 62° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chinese Camp (6 mi).
0.06
Jamestown, Thursday, 22 October
Light rain. High 64°, low 48°.
0
Jamestown, Friday, 23 October
Clear. High 66°, low 48°.
0Jamestown, Saturday, 24 October
Clear. High 65°, low 47°.
0
Jamestown, Sunday, 25 October
Partly cloudy. High 72°, low 50°.
0
Jamestown, Monday, 26 October
Mostly clear. High 73°, low 51°.
0Jamestown, Tuesday, 27 October
Overcast. High 76°, low 53°.
0Jamestown, Wednesday, 28 October
Overcast. High 73°, low 54°.
0Jamestown, Thursday, 29 October
Overcast. High 65°, low 53°.
0Jamestown, Friday, 30 October
Clear. High 70°, low 51°.
0Jamestown, Saturday, 31 October
Overcast. High 68°, low 49°.
0Jamestown, Sunday, 1 November
Clear. High 70°, low 49°.
0Jamestown, Monday, 2 November
Overcast. High 74°, low 56°.
0Jamestown, Tuesday, 3 November
Overcast. High 71°, low 54°.
0Jamestown, Wednesday, 4 November
Mostly clear. High 68°, low 51°.
0Jamestown, Thursday, 5 November
Overcast. High 63°, low 48°.
0.08Jamestown, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Jamestown, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Jamestown, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Jamestown, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Jamestown, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Jamestown, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Jamestown, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14Jamestown, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Jamestown, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Jamestown, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Jamestown, Monday, 16 November
Climate normal for this date — 60-year average.
0.2Jamestown, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Jamestown, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Jamestown, Thursday, 19 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 Jamestown, 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 Jamestown, 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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