Weather in San Dimas, CA
San Dimas, Sunday, 15 November, 05:34
Clear. Feels like 53°. High 73°, low 54°.
Monthly outlook for San Dimas, CA: average high 66.8°, average low 53.5°. That is 1.4° below the climate normal for November. Precipitation is expected on 4 days (about 3.3 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 26 November (77.4°), the coolest 17 November (43.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 63.2° | 70.4° | -4° |
| 25 November – 4 December | 73° | 67.6° | +3° |
| 5 December – 14 December | at normal | 65.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Covina (4 mi).
0.14
San Dimas, Monday, 16 November
Light rain. High 70°, low 55°.
0.13San Dimas, Tuesday, 17 November
Rain. High 60°, low 43°.
0
San Dimas, Wednesday, 18 November
Mostly clear. High 60°, low 44°.
2.93San Dimas, Thursday, 19 November
Heavy rain. High 54°, low 50°.
0.13San Dimas, Friday, 20 November
Rain. High 59°, low 46°.
0
San Dimas, Saturday, 21 November
Clear. High 65°, low 48°.
0
San Dimas, Sunday, 22 November
Overcast. High 63°, low 54°.
0San Dimas, Monday, 23 November
Overcast. High 65°, low 55°.
0San Dimas, Tuesday, 24 November
Overcast. High 63°, low 56°.
0San Dimas, Wednesday, 25 November
Clear. High 71°, low 56°.
0San Dimas, Thursday, 26 November
Overcast. High 77°, low 60°.
0San Dimas, Friday, 27 November
Overcast. High 74°, low 61°.
0
San Dimas, Saturday, 28 November
Partly cloudy. High 68°, low 57°.
0San Dimas, Sunday, 29 November
Overcast. High 72°, low 59°.
0San Dimas, Monday, 30 November
Overcast. High 75°, low 60°.
0.02San Dimas, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03San Dimas, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08San Dimas, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09San Dimas, Friday, 4 December
Climate normal for this date — 60-year average.
0.07San Dimas, Saturday, 5 December
Climate normal for this date — 60-year average.
0.12San Dimas, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11San Dimas, Monday, 7 December
Climate normal for this date — 60-year average.
0.02San Dimas, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03San Dimas, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03San Dimas, Thursday, 10 December
Climate normal for this date — 60-year average.
0.07San Dimas, Friday, 11 December
Climate normal for this date — 60-year average.
0.06San Dimas, Saturday, 12 December
Climate normal for this date — 60-year average.
0.04San Dimas, Sunday, 13 December
Climate normal for this date — 60-year average.
0.05San Dimas, Monday, 14 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 San Dimas, 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 San Dimas, 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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