Weather in Santa Rosa Valley, CA
Santa Rosa Valley, Sunday, 9 August, 16:38
Mostly clear. Feels like 90°. High 93°, low 69°.
Monthly outlook for Santa Rosa Valley, CA: average high 90.5°, average low 64.1°. That is 4.4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 20 August (99.7°), the coolest 17 August (57.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.4° | 82.8° | +2.5° |
| 19 August – 28 August | 95.7° | 83.1° | +7° |
| 29 August – 7 September | at normal | 84.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Thousand Oaks (4 mi).
0
Santa Rosa Valley, Monday, 10 August
Overcast. High 92°, low 65°.
0
Santa Rosa Valley, Tuesday, 11 August
Clear. High 92°, low 64°.
0Santa Rosa Valley, Wednesday, 12 August
Overcast. High 87°, low 64°.
0Santa Rosa Valley, Thursday, 13 August
Clear. High 85°, low 60°.
0Santa Rosa Valley, Friday, 14 August
Clear. High 83°, low 57°.
0Santa Rosa Valley, Saturday, 15 August
Clear. High 83°, low 58°.
0Santa Rosa Valley, Sunday, 16 August
Clear. High 83°, low 58°.
0Santa Rosa Valley, Monday, 17 August
Clear. High 86°, low 57°.
0Santa Rosa Valley, Tuesday, 18 August
Clear. High 90°, low 60°.
0Santa Rosa Valley, Wednesday, 19 August
Overcast. High 96°, low 65°.
0Santa Rosa Valley, Thursday, 20 August
Clear. High 100°, low 69°.
0.02
Santa Rosa Valley, Friday, 21 August
Light rain. High 99°, low 72°.
0Santa Rosa Valley, Saturday, 22 August
Overcast. High 94°, low 70°.
0
Santa Rosa Valley, Sunday, 23 August
Partly cloudy. High 93°, low 69°.
0Santa Rosa Valley, Monday, 24 August
Partly cloudy. High 92°, low 67°.
0Santa Rosa Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.01Santa Rosa Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0.01Santa Rosa Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.02Santa Rosa Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.01Santa Rosa Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
0Santa Rosa Valley, Monday, 7 September
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 Santa Rosa Valley, 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 Santa Rosa Valley, 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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