Weather in Happy Valley, CA
Happy Valley, Sunday, 9 August, 01:55
Clear. Feels like 69°. High 99°, low 69°.
Monthly outlook for Happy Valley, CA: average high 88.7°, average low 71.6°. That is 0.4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 9 August (98.7°), the coolest 9 August (68.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.6° | 88.1° | -0.3° |
| 19 August – 28 August | 90.6° | 88.5° | +1.1° |
| 29 August – 7 September | at normal | 89.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — South Pasadena (3 mi).
0
Happy Valley, Monday, 10 August
Partly cloudy. High 96°, low 70°.
0
Happy Valley, Tuesday, 11 August
Overcast. High 91°, low 75°.
0Happy Valley, Wednesday, 12 August
Partly cloudy. High 86°, low 72°.
0
Happy Valley, Thursday, 13 August
Mostly clear. High 85°, low 69°.
0Happy Valley, Friday, 14 August
Overcast. High 83°, low 69°.
0.02
Happy Valley, Saturday, 15 August
Light rain. High 77°, low 71°.
0Happy Valley, Sunday, 16 August
Overcast. High 84°, low 70°.
0Happy Valley, Monday, 17 August
Overcast. High 85°, low 71°.
0Happy Valley, Tuesday, 18 August
Overcast. High 89°, low 72°.
0Happy Valley, Wednesday, 19 August
Overcast. High 90°, low 73°.
0
Happy Valley, Thursday, 20 August
Clear. High 91°, low 72°.
0Happy Valley, Friday, 21 August
Partly cloudy. High 91°, low 73°.
0Happy Valley, Saturday, 22 August
Clear. High 91°, low 74°.
0Happy Valley, Sunday, 23 August
Clear. High 90°, low 73°.
0Happy Valley, Monday, 24 August
Clear. High 90°, low 73°.
0Happy Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
0Happy Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
0Happy Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
0Happy Valley, Friday, 28 August
Climate normal for this date — 60-year average.
0Happy Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
0Happy Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
0Happy Valley, Monday, 31 August
Climate normal for this date — 60-year average.
0Happy Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.02Happy Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.01Happy Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
0Happy Valley, Friday, 4 September
Climate normal for this date — 60-year average.
0.02Happy Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
0.01Happy Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
0Happy Valley, Monday, 7 September
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 Happy Valley, 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 Happy Valley, 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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