Weather in Island Mountain, CA
Island Mountain, Thursday, 12 November, 11:56
Overcast. Feels like 64°. High 67°, low 46°.
Monthly outlook for Island Mountain, CA: average high 55.1°, average low 38.1°. That is 0.6° below the climate normal for November. Precipitation is expected on 7 days (about 5.5 inches), against a normal of 6 days and 3.6 inches. The warmest day looks like 12 November (66.8°), the coolest 26 November (32.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 55.6° | 56.9° | -0.7° |
| 22 November – 1 December | 54.2° | 54.4° | -0.1° |
| 2 December – 11 December | at normal | 52.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Mina (8 mi).
1.15
Island Mountain, Friday, 13 November
Heavy rain. High 54°, low 42°.
0.05Island Mountain, Saturday, 14 November
Light rain. High 61°, low 46°.
1.14Island Mountain, Sunday, 15 November
Heavy rain. High 56°, low 47°.
0.03Island Mountain, Monday, 16 November
Light rain. High 54°, low 39°.
0.43Island Mountain, Tuesday, 17 November
Rain. High 58°, low 33°.
1.41Island Mountain, Wednesday, 18 November
Heavy rain. High 49°, low 43°.
0Island Mountain, Thursday, 19 November
Overcast. High 53°, low 36°.
0Island Mountain, Friday, 20 November
Overcast. High 54°, low 35°.
0Island Mountain, Saturday, 21 November
Overcast. High 51°, low 34°.
0
Island Mountain, Sunday, 22 November
Clear. High 53°, low 33°.
0Island Mountain, Monday, 23 November
Clear. High 56°, low 33°.
0.28Island Mountain, Tuesday, 24 November
Rain. High 55°, low 34°.
0.99Island Mountain, Wednesday, 25 November
Rain. High 50°, low 44°.
0.01
Island Mountain, Thursday, 26 November
Light snow. High 50°, low 33°.
0Island Mountain, Friday, 27 November
Clear. High 60°, low 34°.
0.19
Island Mountain, Saturday, 28 November
Climate normal for this date — 60-year average.
0.29
Island Mountain, Sunday, 29 November
Climate normal for this date — 60-year average.
0.23Island Mountain, Monday, 30 November
Climate normal for this date — 60-year average.
0.3Island Mountain, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.37Island Mountain, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.28Island Mountain, Thursday, 3 December
Climate normal for this date — 60-year average.
0.24Island Mountain, Friday, 4 December
Climate normal for this date — 60-year average.
0.23Island Mountain, Saturday, 5 December
Climate normal for this date — 60-year average.
0.3Island Mountain, Sunday, 6 December
Climate normal for this date — 60-year average.
0.26Island Mountain, Monday, 7 December
Climate normal for this date — 60-year average.
0.25Island Mountain, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.19Island Mountain, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.34Island Mountain, Thursday, 10 December
Climate normal for this date — 60-year average.
0.3Island Mountain, Friday, 11 December
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 Island Mountain, 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 Island Mountain, 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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