Weather in Big Run, PA
Big Run, Sunday, 11 October, 04:55
Rain. Feels like 52°. High 58°, low 51°.
Monthly outlook for Big Run, PA: average high 56.4°, average low 41.3°. That is 0.2° below the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 13 October (76°), the coolest 19 October (24°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 57° | 57.8° | -0.5° |
| 21 October – 30 October | 55.3° | 54.2° | +0.6° |
| 31 October – 9 November | at normal | 51.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Oliver (11 mi).
0Big Run, Monday, 12 October
Light rain. High 67°, low 50°.
0
Big Run, Tuesday, 13 October
Clear. High 76°, low 55°.
0.04Big Run, Wednesday, 14 October
Light rain. High 71°, low 58°.
0
Big Run, Thursday, 15 October
Partly cloudy. High 61°, low 51°.
0.49Big Run, Friday, 16 October
Rain. High 55°, low 46°.
0.04
Big Run, Saturday, 17 October
Snow. High 44°, low 35°.
0.1Big Run, Sunday, 18 October
Light snow. High 38°, low 28°.
0
Big Run, Monday, 19 October
Mostly clear. High 46°, low 24°.
0Big Run, Tuesday, 20 October
Mostly clear. High 53°, low 30°.
0Big Run, Wednesday, 21 October
Clear. High 61°, low 36°.
0
Big Run, Thursday, 22 October
Overcast. High 59°, low 40°.
0Big Run, Friday, 23 October
Overcast. High 57°, low 40°.
0Big Run, Saturday, 24 October
Clear. High 62°, low 38°.
0.02Big Run, Sunday, 25 October
Light rain. High 53°, low 40°.
0.1Big Run, Monday, 26 October
Light rain. High 40°, low 38°.
0.14
Big 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.
0.11Big Run, Monday, 9 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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