Weather in Jamestown, CA
Jamestown, Tuesday, 20 October, 08:34
Overcast. Feels like 50°. High 77°, low 50°.
Monthly outlook for Jamestown, CA: average high 71.3°, average low 53.3°. That is 0.8° above the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 28 October (81.2°), the coolest 24 October (45.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 74.1° | 71.1° | +1.6° |
| 30 October – 8 November | 66.6° | 66.6° | -0° |
| 9 November – 18 November | at normal | 62.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Chinese Camp (6 mi).
0.13
Jamestown, Wednesday, 21 October
Rain. High 71°, low 55°.
0.11Jamestown, Thursday, 22 October
Light rain. High 63°, low 54°.
0
Jamestown, Friday, 23 October
Clear. High 69°, low 51°.
0Jamestown, Saturday, 24 October
Clear. High 70°, low 45°.
0Jamestown, Sunday, 25 October
Clear. High 75°, low 50°.
0Jamestown, Monday, 26 October
Clear. High 77°, low 54°.
0
Jamestown, Tuesday, 27 October
Partly cloudy. High 80°, low 58°.
0Jamestown, Wednesday, 28 October
Overcast. High 81°, low 62°.
0Jamestown, Thursday, 29 October
Overcast. High 76°, low 58°.
0Jamestown, Friday, 30 October
Overcast. High 71°, low 57°.
0.38Jamestown, Saturday, 31 October
Rain. High 75°, low 55°.
1.06Jamestown, Sunday, 1 November
Rain. High 63°, low 54°.
0.28Jamestown, Monday, 2 November
Light rain. High 61°, low 50°.
0Jamestown, Tuesday, 3 November
Overcast. High 64°, low 50°.
0Jamestown, Wednesday, 4 November
Clear. High 66°, low 49°.
0.06
Jamestown, 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.
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.
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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