Weather in Grossmont, CA
Grossmont, Thursday, 12 November, 06:44
Clear. Feels like 61°. High 80°, low 58°.
Monthly outlook for Grossmont, CA: average high 66.2°, average low 55.8°. That is 1.3° below the climate normal for November. Precipitation is expected on 8 days (about 2.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 12 November (79.6°), the coolest 15 November (50.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 67° | 69.3° | -1.2° |
| 22 November – 1 December | 64.8° | 66.9° | -1.1° |
| 2 December – 11 December | at normal | 65.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — La Mesa (2 mi).
0.19
Grossmont, Friday, 13 November
Rain. High 69°, low 55°.
0.28Grossmont, Saturday, 14 November
Rain. High 68°, low 56°.
0Grossmont, Sunday, 15 November
Clear. High 68°, low 50°.
0.19Grossmont, Monday, 16 November
Light rain. High 66°, low 56°.
0.16Grossmont, Tuesday, 17 November
Rain. High 62°, low 53°.
0Grossmont, Wednesday, 18 November
Light rain. High 67°, low 56°.
0.13Grossmont, Thursday, 19 November
Light rain. High 64°, low 61°.
0.54Grossmont, Friday, 20 November
Rain. High 63°, low 60°.
0.04Grossmont, Saturday, 21 November
Light rain. High 64°, low 59°.
0.02Grossmont, Sunday, 22 November
Light rain. High 63°, low 58°.
0Grossmont, Monday, 23 November
Clear. High 66°, low 55°.
0
Grossmont, Tuesday, 24 November
Overcast. High 65°, low 56°.
0
Grossmont, Wednesday, 25 November
Mostly clear. High 67°, low 57°.
0.48Grossmont, Thursday, 26 November
Rain. High 65°, low 53°.
0Grossmont, Friday, 27 November
Clear. High 63°, low 50°.
0.07
Grossmont, Saturday, 28 November
Climate normal for this date — 60-year average.
0.08Grossmont, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Grossmont, Monday, 30 November
Climate normal for this date — 60-year average.
0.03Grossmont, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.01Grossmont, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.03Grossmont, Thursday, 3 December
Climate normal for this date — 60-year average.
0.08Grossmont, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Grossmont, Saturday, 5 December
Climate normal for this date — 60-year average.
0.08Grossmont, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Grossmont, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Grossmont, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03Grossmont, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03Grossmont, Thursday, 10 December
Climate normal for this date — 60-year average.
0.04Grossmont, 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 Grossmont, 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 Grossmont, 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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