Weather in Chatham Run, PA
Chatham Run, Sunday, 15 November, 18:07
Overcast. Feels like 42°. High 46°, low 39°.
Monthly outlook for Chatham Run, PA: average high 53.5°, average low 38°. That is 6.6° above the climate normal for November. Precipitation is expected on 3 days (about 3.0 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 27 November (64.3°), the coolest 24 November (29.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 52.9° | 42.6° | +5.7° |
| 25 November – 4 December | 54.6° | 39.4° | +8.5° |
| 5 December – 14 December | at normal | 35.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Cummings (11 mi).
0Chatham Run, Monday, 16 November
Overcast. High 50°, low 40°.
0
Chatham Run, Tuesday, 17 November
Mostly clear. High 54°, low 35°.
0Chatham Run, Wednesday, 18 November
Mostly clear. High 59°, low 33°.
0
Chatham Run, Thursday, 19 November
Partly cloudy. High 59°, low 30°.
0Chatham Run, Friday, 20 November
Overcast. High 57°, low 39°.
0Chatham Run, Saturday, 21 November
Overcast. High 56°, low 38°.
0.12
Chatham Run, Sunday, 22 November
Light rain. High 53°, low 46°.
0Chatham Run, Monday, 23 November
Partly cloudy. High 48°, low 33°.
0
Chatham Run, Tuesday, 24 November
Clear. High 47°, low 29°.
0Chatham Run, Wednesday, 25 November
Overcast. High 45°, low 31°.
0Chatham Run, Thursday, 26 November
Light rain. High 54°, low 42°.
1.31Chatham Run, Friday, 27 November
Heavy rain. High 64°, low 52°.
0.01Chatham Run, Saturday, 28 November
Light rain. High 51°, low 41°.
0Chatham Run, Sunday, 29 November
Mostly clear. High 53°, low 38°.
1.54Chatham Run, Monday, 30 November
Rain. High 61°, low 42°.
0.15
Chatham 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.
0.15Chatham Run, Thursday, 10 December
Climate normal for this date — 60-year average.
0.15Chatham Run, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Chatham Run, Saturday, 12 December
Climate normal for this date — 60-year average.
0.15Chatham Run, Sunday, 13 December
Climate normal for this date — 60-year average.
0.15Chatham Run, Monday, 14 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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