Weather in Chatham Run, PA
Chatham Run, Tuesday, 10 November, 05:34
Partly cloudy. Feels like 35°. High 63°, low 38°.
Monthly outlook for Chatham Run, PA: average high 51.6°, average low 37.4°. That is 4.6° above the climate normal for November. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 23 November (65.6°), the coolest 25 November (29.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 November – 19 November | 49.9° | 44.3° | +3.1° |
| 20 November – 29 November | 54.6° | 41.2° | +7.4° |
| 30 November – 9 December | at normal | 36.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Cummings (11 mi).
0.01
Chatham Run, Wednesday, 11 November
Light rain. High 62°, low 42°.
0.43Chatham Run, Thursday, 12 November
Rain. High 50°, low 37°.
0.05Chatham Run, Friday, 13 November
Light rain. High 40°, low 35°.
0.01
Chatham Run, Saturday, 14 November
Light snow. High 41°, low 35°.
0
Chatham Run, Sunday, 15 November
Overcast. High 41°, low 33°.
0Chatham Run, Monday, 16 November
Overcast. High 46°, low 38°.
0
Chatham Run, Tuesday, 17 November
Clear. High 51°, low 34°.
0
Chatham Run, Wednesday, 18 November
Mostly clear. High 51°, low 33°.
0
Chatham Run, Thursday, 19 November
Partly cloudy. High 53°, low 33°.
0Chatham Run, Friday, 20 November
Overcast. High 54°, low 35°.
0.33Chatham Run, Saturday, 21 November
Rain. High 52°, low 41°.
0.27Chatham Run, Sunday, 22 November
Rain. High 57°, low 50°.
0.76Chatham Run, Monday, 23 November
Rain. High 66°, low 48°.
0.45Chatham Run, Tuesday, 24 November
Rain. High 58°, low 36°.
0.02Chatham Run, Wednesday, 25 November
Light snow. High 40°, low 30°.
0.21
Chatham Run, Thursday, 26 November
Climate normal for this date — 60-year average.
0.09Chatham Run, Friday, 27 November
Climate normal for this date — 60-year average.
0.24Chatham Run, Saturday, 28 November
Climate normal for this date — 60-year average.
0.12Chatham Run, Sunday, 29 November
Climate normal for this date — 60-year average.
0.11Chatham Run, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Chatham Run, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11Chatham Run, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.13Chatham Run, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09Chatham Run, Friday, 4 December
Climate normal for this date — 60-year average.
0.12Chatham Run, Saturday, 5 December
Climate normal for this date — 60-year average.
0.13Chatham Run, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1Chatham Run, Monday, 7 December
Climate normal for this date — 60-year average.
0.09Chatham Run, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.15Chatham Run, Wednesday, 9 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 Chatham 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 Chatham 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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