Weather in Chatham Run, PA
Chatham Run, Sunday, 1 November, 02:20
Overcast. Feels like 37°. High 65°, low 37°.
Monthly outlook for Chatham Run, PA: average high 55.5°, average low 43.9°. That is 4.4° above the climate normal for November. Precipitation is expected on 8 days (about 4.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 4 November (69.5°), the coolest 16 November (34.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 1 November – 10 November | 60.2° | 49.4° | +6° |
| 11 November – 20 November | 47.5° | 43.8° | +2° |
| 21 November – 30 November | at normal | 40.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Cummings (11 mi).
0Chatham Run, Monday, 2 November
Overcast. High 67°, low 40°.
0Chatham Run, Tuesday, 3 November
Overcast. High 67°, low 43°.
0Chatham Run, Wednesday, 4 November
Overcast. High 70°, low 46°.
0.56
Chatham Run, Thursday, 5 November
Rain. High 65°, low 57°.
0.98Chatham Run, Friday, 6 November
Rain. High 65°, low 55°.
0.25Chatham Run, Saturday, 7 November
Light rain. High 60°, low 50°.
0.17Chatham Run, Sunday, 8 November
Light rain. High 51°, low 46°.
0.09Chatham Run, Monday, 9 November
Light rain. High 46°, low 43°.
0.05Chatham Run, Tuesday, 10 November
Light rain. High 47°, low 44°.
0.01Chatham Run, Wednesday, 11 November
Light rain. High 44°, low 40°.
0.01Chatham Run, Thursday, 12 November
Light rain. High 48°, low 41°.
0.03Chatham Run, Friday, 13 November
Light rain. High 49°, low 40°.
2.45Chatham Run, Saturday, 14 November
Heavy rain. High 50°, low 44°.
0.21Chatham Run, Sunday, 15 November
Light rain. High 42°, low 41°.
0
Chatham Run, Monday, 16 November
Clear. High 52°, low 35°.
0.11
Chatham Run, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09
Chatham Run, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Chatham Run, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Chatham Run, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Chatham Run, Saturday, 21 November
Climate normal for this date — 60-year average.
0.1Chatham Run, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Chatham Run, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Chatham Run, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.12Chatham Run, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Chatham 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.
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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