Weather in National Hill, PA
National Hill, Sunday, 9 August, 11:41
Clear. Feels like 79°. High 86°, low 67°.
Monthly outlook for National Hill, PA: average high 77.2°, average low 59.5°. That is 1.2° below the climate normal for August. Precipitation is expected on 6 days (about 3.2 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 9 August (85.7°), the coolest 21 August (52.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 78.2° | 79.8° | -0.8° |
| 19 August – 28 August | 75.6° | 79.2° | -2° |
| 29 August – 7 September | at normal | 77.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Mount Lebanon (6 mi).
1.34
National Hill, Monday, 10 August
Heavy rain. High 85°, low 67°.
0.67National Hill, Tuesday, 11 August
Heavy rain. High 82°, low 64°.
0.5National Hill, Wednesday, 12 August
Heavy rain. High 79°, low 65°.
0
National Hill, Thursday, 13 August
Mostly clear. High 78°, low 63°.
0
National Hill, Friday, 14 August
Overcast. High 75°, low 59°.
0National Hill, Saturday, 15 August
Overcast. High 73°, low 53°.
0.05National Hill, Sunday, 16 August
Light rain. High 73°, low 54°.
0National Hill, Monday, 17 August
Light rain. High 74°, low 61°.
0National Hill, Tuesday, 18 August
Overcast. High 79°, low 57°.
0.09National Hill, Wednesday, 19 August
Light rain. High 80°, low 62°.
0National Hill, Thursday, 20 August
Overcast. High 70°, low 58°.
0National Hill, Friday, 21 August
Overcast. High 75°, low 53°.
0.5National Hill, Saturday, 22 August
Rain. High 84°, low 58°.
0.02National Hill, Sunday, 23 August
Light rain. High 70°, low 58°.
0National Hill, Monday, 24 August
Clear. High 74°, low 53°.
0.09
National Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09National Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
National Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
0.19National Hill, Friday, 28 August
Climate normal for this date — 60-year average.
0.13National Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14National Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
0.16National Hill, Monday, 31 August
Climate normal for this date — 60-year average.
0.1National Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13National Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1National Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09National Hill, Friday, 4 September
Climate normal for this date — 60-year average.
0.11National Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
0.14National Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11National Hill, 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 National Hill, 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 National Hill, 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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