Weather in Chatham, NY
Chatham, Sunday, 11 October, 12:20
Rain. Feels like 54°. High 55°, low 45°.
Monthly outlook for Chatham, NY: average high 56.6°, average low 38.9°. That is 1.1° above the climate normal for October. Precipitation is expected on 7 days (about 2.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 13 October (71.6°), the coolest 19 October (23.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 57.5° | 55.4° | +1.2° |
| 21 October – 30 October | 55° | 51.8° | +1.8° |
| 31 October – 9 November | at normal | 48.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Stockbridge (13 mi).
0.28Chatham, Monday, 12 October
Rain. High 70°, low 44°.
0.06Chatham, Tuesday, 13 October
Light rain. High 72°, low 50°.
0Chatham, Wednesday, 14 October
Light rain. High 71°, low 60°.
0
Chatham, Thursday, 15 October
Overcast. High 58°, low 44°.
0.86Chatham, Friday, 16 October
Rain. High 53°, low 44°.
0.16
Chatham, Saturday, 17 October
Snow. High 48°, low 32°.
0.07Chatham, Sunday, 18 October
Light snow. High 42°, low 25°.
0Chatham, Monday, 19 October
Overcast. High 49°, low 24°.
0
Chatham, Tuesday, 20 October
Clear. High 58°, low 33°.
0
Chatham, Wednesday, 21 October
Mostly clear. High 55°, low 38°.
0Chatham, Thursday, 22 October
Overcast. High 55°, low 36°.
0Chatham, Friday, 23 October
Clear. High 58°, low 37°.
0Chatham, Saturday, 24 October
Overcast. High 56°, low 39°.
0Chatham, Sunday, 25 October
Overcast. High 53°, low 36°.
0.06Chatham, Monday, 26 October
Light rain. High 53°, low 33°.
0.12
Chatham, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.17Chatham, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.14Chatham, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Chatham, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Chatham, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Chatham, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Chatham, Monday, 2 November
Climate normal for this date — 60-year average.
0.13
Chatham, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Chatham, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Chatham, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Chatham, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Chatham, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Chatham, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Chatham, 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 Chatham, NY 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, NY 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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