Weather in Big Run, PA
Big Run, Saturday, 10 October, 17:35
Overcast. Feels like 61°. High 66°, low 44°.
Monthly outlook for Big Run, PA: average high 58.1°, average low 41.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 3 days (about 3.1 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 13 October (75.6°), the coolest 19 October (27.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 60.2° | 58.4° | +1° |
| 20 October – 29 October | 54.8° | 54.4° | +0.2° |
| 30 October – 8 November | at normal | 51.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Oliver (11 mi).
1.44
Big Run, Sunday, 11 October
Heavy rain. High 61°, low 47°.
0.01Big Run, Monday, 12 October
Light rain. High 68°, low 50°.
0
Big Run, Tuesday, 13 October
Clear. High 76°, low 56°.
0.33Big Run, Wednesday, 14 October
Rain. High 68°, low 59°.
0
Big Run, Thursday, 15 October
Partly cloudy. High 60°, low 51°.
1.28Big Run, Friday, 16 October
Rain. High 64°, low 51°.
0.02Big Run, Saturday, 17 October
Light rain. High 51°, low 38°.
0.02
Big Run, Sunday, 18 October
Snow. High 42°, low 29°.
0Big Run, Monday, 19 October
Clear. High 46°, low 28°.
0Big Run, Tuesday, 20 October
Overcast. High 50°, low 29°.
0Big Run, Wednesday, 21 October
Clear. High 55°, low 31°.
0Big Run, Thursday, 22 October
Overcast. High 57°, low 35°.
0Big Run, Friday, 23 October
Overcast. High 56°, low 38°.
0Big Run, Saturday, 24 October
Overcast. High 57°, low 40°.
0Big Run, Sunday, 25 October
Overcast. High 54°, low 40°.
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.
0.11Big Run, Sunday, 8 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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