Weather in Big Run, PA
Big Run, Friday, 9 October, 14:11
Clear. Feels like 63°. High 66°, low 41°.
Monthly outlook for Big Run, PA: average high 61.1°, average low 43.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 7 days (about 2.9 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 16 October (76.6°), the coolest 19 October (31.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 63.2° | 59° | +2.4° |
| 19 October – 28 October | 57.5° | 54.8° | +1.5° |
| 29 October – 7 November | at normal | 51.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Oliver (11 mi).
0
Big Run, Saturday, 10 October
Overcast. High 72°, low 43°.
0.23
Big Run, Sunday, 11 October
Rain. High 63°, low 50°.
0.06Big Run, Monday, 12 October
Light rain. High 68°, low 58°.
0.2Big Run, Tuesday, 13 October
Rain. High 73°, low 58°.
0Big Run, Wednesday, 14 October
Overcast. High 64°, low 52°.
0Big Run, Thursday, 15 October
Overcast. High 58°, low 41°.
0.54Big Run, Friday, 16 October
Rain. High 77°, low 48°.
0.04
Big Run, Saturday, 17 October
Snow. High 46°, low 37°.
0.02Big Run, Sunday, 18 October
Light rain. High 46°, low 32°.
0
Big Run, Monday, 19 October
Mostly clear. High 53°, low 31°.
0Big Run, Tuesday, 20 October
Clear. High 58°, low 34°.
0Big Run, Wednesday, 21 October
Clear. High 61°, low 39°.
0Big Run, Thursday, 22 October
Overcast. High 61°, low 42°.
0.65Big Run, Friday, 23 October
Rain. High 62°, low 46°.
1.16Big Run, Saturday, 24 October
Rain. High 49°, low 39°.
0.15
Big Run, Sunday, 25 October
Climate normal for this date — 60-year average.
0.1
Big Run, Monday, 26 October
Climate normal for this date — 60-year average.
0.14Big Run, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.12Big Run, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.17Big Run, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Big Run, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Big Run, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Big Run, Sunday, 1 November
Climate normal for this date — 60-year average.
0.16Big Run, Monday, 2 November
Climate normal for this date — 60-year average.
0.08Big Run, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Big Run, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.1Big Run, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Big Run, Friday, 6 November
Climate normal for this date — 60-year average.
0.12Big Run, Saturday, 7 November
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 Big Run, 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 Big Run, 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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