Weather in Deer Park, CA
Deer Park, Tuesday, 20 October, 10:34
Overcast. Feels like 59°. High 68°, low 48°.
Monthly outlook for Deer Park, CA: average high 71.7°, average low 51.9°. That is 0.6° below the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 28 October (83.6°), the coolest 20 October (47.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 76.5° | 73.7° | +1.6° |
| 30 October – 8 November | 63.6° | 69.8° | -3.4° |
| 9 November – 18 November | at normal | 64.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Helena (2 mi).
0Deer Park, Wednesday, 21 October
Overcast. High 71°, low 54°.
0
Deer Park, Thursday, 22 October
Partly cloudy. High 71°, low 51°.
0
Deer Park, Friday, 23 October
Clear. High 77°, low 49°.
0Deer Park, Saturday, 24 October
Clear. High 79°, low 50°.
0Deer Park, Sunday, 25 October
Clear. High 76°, low 48°.
0Deer Park, Monday, 26 October
Clear. High 83°, low 54°.
0Deer Park, Tuesday, 27 October
Overcast. High 82°, low 56°.
0Deer Park, Wednesday, 28 October
Overcast. High 84°, low 59°.
0Deer Park, Thursday, 29 October
Overcast. High 75°, low 51°.
0.01
Deer Park, Friday, 30 October
Light rain. High 64°, low 49°.
0.76Deer Park, Saturday, 31 October
Rain. High 64°, low 55°.
0.68Deer Park, Sunday, 1 November
Rain. High 60°, low 56°.
0.13Deer Park, Monday, 2 November
Light rain. High 61°, low 51°.
0Deer Park, Tuesday, 3 November
Overcast. High 66°, low 50°.
0Deer Park, Wednesday, 4 November
Clear. High 66°, low 49°.
0.11
Deer Park, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Deer Park, Friday, 6 November
Climate normal for this date — 60-year average.
0.12Deer Park, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Deer Park, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Deer Park, Monday, 9 November
Climate normal for this date — 60-year average.
0.19Deer Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Deer Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Deer Park, Thursday, 12 November
Climate normal for this date — 60-year average.
0.19Deer Park, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Deer Park, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Deer Park, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Deer Park, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Deer Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Deer Park, 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 Deer Park, 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 Deer Park, 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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