Weather in Mount Vernon, PA
Mount Vernon, Friday, 13 November, 10:05
Overcast. Feels like 40°. High 47°, low 39°.
Monthly outlook for Mount Vernon, PA: average high 51.4°, average low 37°. That is 0.6° above the climate normal for November. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 22 November (63.2°), the coolest 27 November (24°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 53.8° | 50.8° | +1.7° |
| 23 November – 2 December | 47.5° | 48.5° | -0.6° |
| 3 December – 12 December | at normal | 44.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Lincoln University (5 mi).
0
Mount Vernon, Saturday, 14 November
Partly cloudy. High 51°, low 35°.
0Mount Vernon, Sunday, 15 November
Partly cloudy. High 48°, low 37°.
0Mount Vernon, Monday, 16 November
Overcast. High 47°, low 33°.
0
Mount Vernon, Tuesday, 17 November
Clear. High 50°, low 33°.
0Mount Vernon, Wednesday, 18 November
Clear. High 55°, low 36°.
0Mount Vernon, Thursday, 19 November
Clear. High 59°, low 37°.
0Mount Vernon, Friday, 20 November
Overcast. High 60°, low 43°.
0Mount Vernon, Saturday, 21 November
Clear. High 58°, low 43°.
0Mount Vernon, Sunday, 22 November
Clear. High 63°, low 45°.
0.1
Mount Vernon, Monday, 23 November
Light rain. High 59°, low 52°.
0.52Mount Vernon, Tuesday, 24 November
Rain. High 59°, low 54°.
0.2Mount Vernon, Wednesday, 25 November
Rain. High 42°, low 29°.
0Mount Vernon, Thursday, 26 November
Overcast. High 37°, low 24°.
0Mount Vernon, Friday, 27 November
Clear. High 42°, low 24°.
0Mount Vernon, Saturday, 28 November
Clear. High 46°, low 28°.
0.15Mount Vernon, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11Mount Vernon, Monday, 30 November
Climate normal for this date — 60-year average.
0.12Mount Vernon, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12Mount Vernon, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.11Mount Vernon, Thursday, 3 December
Climate normal for this date — 60-year average.
0.1Mount Vernon, Friday, 4 December
Climate normal for this date — 60-year average.
0.15Mount Vernon, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11
Mount Vernon, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1Mount Vernon, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Mount Vernon, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.2Mount Vernon, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.14Mount Vernon, Thursday, 10 December
Climate normal for this date — 60-year average.
0.2Mount Vernon, Friday, 11 December
Climate normal for this date — 60-year average.
0.1Mount Vernon, Saturday, 12 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 Mount Vernon, 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 Mount Vernon, 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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