Weather in South Mountain, PA
South Mountain, Sunday, 15 November, 01:01
Overcast. Feels like 33°. High 44°, low 39°.
Monthly outlook for South Mountain, PA: average high 49.1°, average low 32.3°. That is 0.3° below the climate normal for November. Precipitation is expected on 1 day (about 1.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 19 November (60.5°), the coolest 25 November (16.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 51.2° | 50.4° | +0.5° |
| 25 November – 4 December | 45.6° | 47.6° | -1.1° |
| 5 December – 14 December | at normal | 43.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Rouzerville (8 mi).
0South Mountain, Monday, 16 November
Overcast. High 49°, low 36°.
0
South Mountain, Tuesday, 17 November
Clear. High 53°, low 33°.
0South Mountain, Wednesday, 18 November
Clear. High 55°, low 35°.
0South Mountain, Thursday, 19 November
Overcast. High 60°, low 38°.
0South Mountain, Friday, 20 November
Clear. High 60°, low 40°.
0South Mountain, Saturday, 21 November
Clear. High 57°, low 38°.
0
South Mountain, Sunday, 22 November
Partly cloudy. High 55°, low 37°.
0South Mountain, Monday, 23 November
Partly cloudy. High 47°, low 24°.
0
South Mountain, Tuesday, 24 November
Mostly clear. High 31°, low 19°.
0South Mountain, Wednesday, 25 November
Clear. High 39°, low 16°.
0South Mountain, Thursday, 26 November
Overcast. High 40°, low 22°.
0.02
South Mountain, Friday, 27 November
Light rain. High 51°, low 27°.
1.13South Mountain, Saturday, 28 November
Heavy rain. High 58°, low 44°.
0South Mountain, Sunday, 29 November
Partly cloudy. High 44°, low 36°.
0South Mountain, Monday, 30 November
Overcast. High 42°, low 34°.
0.14
South Mountain, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11South Mountain, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.12South Mountain, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09South Mountain, Friday, 4 December
Climate normal for this date — 60-year average.
0.13South Mountain, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11South Mountain, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09South Mountain, Monday, 7 December
Climate normal for this date — 60-year average.
0.07South Mountain, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.16South Mountain, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.15South Mountain, Thursday, 10 December
Climate normal for this date — 60-year average.
0.15South Mountain, Friday, 11 December
Climate normal for this date — 60-year average.
0.07South Mountain, Saturday, 12 December
Climate normal for this date — 60-year average.
0.12South Mountain, Sunday, 13 December
Climate normal for this date — 60-year average.
0.13South Mountain, 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 South Mountain, 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 South Mountain, 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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