Weather in Clarendon Heights, PA
Clarendon Heights, Sunday, 9 August, 12:26
Clear. Feels like 78°. High 82°, low 64°.
Monthly outlook for Clarendon Heights, PA: average high 73.3°, average low 53.8°. That is 1° below the climate normal for August. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 9 August (82°), the coolest 24 August (45.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 73.3° | 75.7° | -1.3° |
| 19 August – 28 August | 73.4° | 74.6° | -0.7° |
| 29 August – 7 September | at normal | 73.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sheffield (9 mi).
0.25
Clarendon Heights, Monday, 10 August
Rain. High 81°, low 64°.
0.18Clarendon Heights, Tuesday, 11 August
Rain. High 81°, low 61°.
0.17Clarendon Heights, Wednesday, 12 August
Rain. High 71°, low 60°.
0.02Clarendon Heights, Thursday, 13 August
Light rain. High 72°, low 55°.
0
Clarendon Heights, Friday, 14 August
Mostly clear. High 71°, low 49°.
0
Clarendon Heights, Saturday, 15 August
Overcast. High 66°, low 46°.
0Clarendon Heights, Sunday, 16 August
Overcast. High 58°, low 46°.
0.01Clarendon Heights, Monday, 17 August
Light rain. High 73°, low 56°.
0Clarendon Heights, Tuesday, 18 August
Overcast. High 78°, low 52°.
0.21Clarendon Heights, Wednesday, 19 August
Rain. High 82°, low 61°.
0.01Clarendon Heights, Thursday, 20 August
Light rain. High 66°, low 51°.
0
Clarendon Heights, Friday, 21 August
Partly cloudy. High 74°, low 48°.
1.01Clarendon Heights, Saturday, 22 August
Heavy rain. High 81°, low 53°.
0.12Clarendon Heights, Sunday, 23 August
Light rain. High 67°, low 50°.
0Clarendon Heights, Monday, 24 August
Clear. High 71°, low 45°.
0.11
Clarendon Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09Clarendon Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.15Clarendon Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Clarendon Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.15Clarendon Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.12Clarendon Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.14Clarendon Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Clarendon Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.19Clarendon Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Clarendon Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Clarendon Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Clarendon Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.1Clarendon Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.12Clarendon Heights, 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 Clarendon Heights, PA 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 Clarendon Heights, PA 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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