Weather in Jamestown, CA
Jamestown, Sunday, 18 October, 21:18
Clear. Feels like 59°. High 79°, low 51°.
Monthly outlook for Jamestown, CA: average high 69.4°, average low 49°. That is 0.6° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 26 October (80.7°), the coolest 29 October (40°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 73° | 72.3° | +0.4° |
| 28 October – 6 November | 63.5° | 67.4° | -2.1° |
| 7 November – 16 November | at normal | 63° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chinese Camp (6 mi).
0
Jamestown, Monday, 19 October
Overcast. High 72°, low 51°.
0
Jamestown, Tuesday, 20 October
Partly cloudy. High 72°, low 50°.
0.03
Jamestown, Wednesday, 21 October
Light rain. High 65°, low 56°.
0.16Jamestown, Thursday, 22 October
Light rain. High 69°, low 52°.
0.02Jamestown, Friday, 23 October
Light rain. High 65°, low 52°.
0
Jamestown, Saturday, 24 October
Clear. High 73°, low 47°.
0Jamestown, Sunday, 25 October
Clear. High 80°, low 57°.
0Jamestown, Monday, 26 October
Clear. High 81°, low 58°.
0Jamestown, Tuesday, 27 October
Overcast. High 73°, low 49°.
0.17Jamestown, Wednesday, 28 October
Light rain. High 56°, low 41°.
0.14Jamestown, Thursday, 29 October
Light rain. High 57°, low 40°.
0.02Jamestown, Friday, 30 October
Light rain. High 63°, low 43°.
0Jamestown, Saturday, 31 October
Clear. High 67°, low 44°.
0Jamestown, Sunday, 1 November
Clear. High 70°, low 49°.
0Jamestown, Monday, 2 November
Overcast. High 68°, low 45°.
0.06
Jamestown, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Jamestown, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Jamestown, Thursday, 5 November
Climate normal for this date — 60-year average.
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.
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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