Weather in May, CA
May, Wednesday, 7 October, 14:34
Clear. Feels like 99°. High 100°, low 70°.
Monthly outlook for May, CA: average high 81.6°, average low 64.4°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 7 October (100.2°), the coolest 13 October (54.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 7 October – 16 October | 80.7° | 81.1° | -0.2° |
| 17 October – 26 October | 83.2° | 78.9° | +2.4° |
| 27 October – 5 November | at normal | 75.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Corona (5 mi).
0May, Thursday, 8 October
Clear. High 98°, low 71°.
0May, Friday, 9 October
Clear. High 93°, low 69°.
0
May, Saturday, 10 October
Overcast. High 80°, low 67°.
0May, Sunday, 11 October
Clear. High 83°, low 64°.
0.26
May, Monday, 12 October
Light rain. High 71°, low 57°.
0.02May, Tuesday, 13 October
Light rain. High 70°, low 55°.
0May, Wednesday, 14 October
Clear. High 76°, low 60°.
0May, Thursday, 15 October
Overcast. High 72°, low 64°.
0.49May, Friday, 16 October
Light rain. High 64°, low 59°.
0.15May, Saturday, 17 October
Light rain. High 69°, low 58°.
0May, Sunday, 18 October
Clear. High 76°, low 60°.
0May, Monday, 19 October
Overcast. High 82°, low 66°.
0May, Tuesday, 20 October
Clear. High 88°, low 67°.
0May, Wednesday, 21 October
Clear. High 90°, low 71°.
0May, Thursday, 22 October
Clear. High 93°, low 72°.
0.03
May, Friday, 23 October
Climate normal for this date — 60-year average.
0.03May, Saturday, 24 October
Climate normal for this date — 60-year average.
0.01May, Sunday, 25 October
Climate normal for this date — 60-year average.
0.01May, Monday, 26 October
Climate normal for this date — 60-year average.
0.06May, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.04May, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.02May, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05
May, Friday, 30 October
Climate normal for this date — 60-year average.
0.02May, Saturday, 31 October
Climate normal for this date — 60-year average.
0.05May, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02May, Monday, 2 November
Climate normal for this date — 60-year average.
0May, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03May, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.01May, 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 May, 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 May, 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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