Weather in Haystack, CA
Haystack, Wednesday, 7 October, 13:43
Clear. Feels like 92°. High 94°, low 58°.
Monthly outlook for Haystack, CA: average high 80.5°, average low 52.1°. That is 3.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 22 October (95.5°), the coolest 18 October (46.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 77.9° | 75.6° | +1.3° |
| 17 October – 26 October | 84.9° | 72.4° | +7° |
| 27 October – 5 November | at normal | 68.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sonoma State University (9 mi).
0Haystack, Thursday, 8 October
Clear. High 92°, low 55°.
0Haystack, Friday, 9 October
Clear. High 77°, low 54°.
0Haystack, Saturday, 10 October
Clear. High 69°, low 52°.
0
Haystack, Sunday, 11 October
Mostly clear. High 72°, low 52°.
0Haystack, Monday, 12 October
Clear. High 74°, low 50°.
0
Haystack, Tuesday, 13 October
Partly cloudy. High 72°, low 50°.
0Haystack, Wednesday, 14 October
Clear. High 78°, low 47°.
0Haystack, Thursday, 15 October
Clear. High 76°, low 48°.
0Haystack, Friday, 16 October
Clear. High 74°, low 54°.
0Haystack, Saturday, 17 October
Clear. High 76°, low 50°.
0Haystack, Sunday, 18 October
Clear. High 76°, low 46°.
0
Haystack, Monday, 19 October
Overcast. High 82°, low 48°.
0Haystack, Tuesday, 20 October
Overcast. High 86°, low 52°.
0Haystack, Wednesday, 21 October
Mostly clear. High 95°, low 57°.
0Haystack, Thursday, 22 October
Partly cloudy. High 95°, low 61°.
0.09Haystack, Friday, 23 October
Climate normal for this date — 60-year average.
0.14Haystack, Saturday, 24 October
Climate normal for this date — 60-year average.
0.09Haystack, Sunday, 25 October
Climate normal for this date — 60-year average.
0.06Haystack, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Haystack, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.09Haystack, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Haystack, Thursday, 29 October
Climate normal for this date — 60-year average.
0.07Haystack, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Haystack, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Haystack, Sunday, 1 November
Climate normal for this date — 60-year average.
0.05Haystack, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Haystack, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Haystack, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Haystack, Thursday, 5 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 Haystack, 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 Haystack, 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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