Weather in Old Chatham, NY
Old Chatham, Wednesday, 21 October, 04:46
Clear. Feels like 35°. High 63°, low 35°.
Monthly outlook for Old Chatham, NY: average high 55.6°, average low 40.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 22 October (65.1°), the coolest 1 November (27.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 56.6° | 51.8° | +2.6° |
| 31 October – 9 November | 54° | 48.6° | +2.9° |
| 10 November – 19 November | at normal | 43.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Stockbridge (13 mi).
0
Old Chatham, Thursday, 22 October
Clear. High 65°, low 31°.
0Old Chatham, Friday, 23 October
Clear. High 51°, low 38°.
0Old Chatham, Saturday, 24 October
Clear. High 55°, low 34°.
0
Old Chatham, Sunday, 25 October
Partly cloudy. High 59°, low 33°.
0
Old Chatham, Monday, 26 October
Overcast. High 61°, low 39°.
0Old Chatham, Tuesday, 27 October
Overcast. High 57°, low 44°.
0.01
Old Chatham, Wednesday, 28 October
Light rain. High 47°, low 44°.
0.2Old Chatham, Thursday, 29 October
Light rain. High 60°, low 48°.
0Old Chatham, Friday, 30 October
Partly cloudy. High 48°, low 34°.
0.02
Old Chatham, Saturday, 31 October
Light snow. High 44°, low 29°.
0Old Chatham, Sunday, 1 November
Overcast. High 46°, low 27°.
0.25Old Chatham, Monday, 2 November
Rain. High 55°, low 45°.
0.17Old Chatham, Tuesday, 3 November
Light rain. High 59°, low 55°.
0.39Old Chatham, Wednesday, 4 November
Rain. High 61°, low 52°.
0Old Chatham, Thursday, 5 November
Overcast. High 60°, low 54°.
0.1
Old Chatham, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Old Chatham, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Old Chatham, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Old Chatham, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Old Chatham, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Old Chatham, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.13Old Chatham, Thursday, 12 November
Climate normal for this date — 60-year average.
0.16Old Chatham, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Old Chatham, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Old Chatham, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Old Chatham, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Old Chatham, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Old Chatham, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Old Chatham, Thursday, 19 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 Old 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 Old 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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