Weather in Rochester, CA
Rochester, Sunday, 25 October, 17:51
Mostly clear. Feels like 75°. High 78°, low 55°.
Monthly outlook for Rochester, CA: average high 71.3°, average low 58.6°. That is 1.3° below the climate normal for October. Precipitation is expected on 2 days (about 2.3 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 8 November (81.2°), the coolest 28 October (53°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 68.8° | 74.5° | -3.2° |
| 4 November – 13 November | 75.4° | 71.2° | +2.3° |
| 14 November – 23 November | at normal | 68° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Rancho Cucamonga (3 mi).
0
Rochester, Monday, 26 October
Clear. High 80°, low 58°.
0Rochester, Tuesday, 27 October
Clear. High 67°, low 55°.
0
Rochester, Wednesday, 28 October
Partly cloudy. High 68°, low 53°.
0Rochester, Thursday, 29 October
Partly cloudy. High 66°, low 55°.
0.01
Rochester, Friday, 30 October
Light rain. High 62°, low 55°.
0.07Rochester, Saturday, 31 October
Light rain. High 70°, low 55°.
2.2Rochester, Sunday, 1 November
Heavy rain. High 63°, low 59°.
0.01Rochester, Monday, 2 November
Light rain. High 67°, low 56°.
0Rochester, Tuesday, 3 November
Clear. High 68°, low 58°.
0Rochester, Wednesday, 4 November
Clear. High 69°, low 58°.
0
Rochester, Thursday, 5 November
Overcast. High 68°, low 60°.
0.01Rochester, Friday, 6 November
Light rain. High 74°, low 62°.
0Rochester, Saturday, 7 November
Mostly clear. High 80°, low 65°.
0Rochester, Sunday, 8 November
Clear. High 81°, low 67°.
0Rochester, Monday, 9 November
Overcast. High 81°, low 67°.
0.04Rochester, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Rochester, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Rochester, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Rochester, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Rochester, Saturday, 14 November
Climate normal for this date — 60-year average.
0.07Rochester, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Rochester, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Rochester, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Rochester, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Rochester, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Rochester, Friday, 20 November
Climate normal for this date — 60-year average.
0.12Rochester, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Rochester, Sunday, 22 November
Climate normal for this date — 60-year average.
0.02Rochester, Monday, 23 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 Rochester, 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 Rochester, 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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