Weather in Old Chatham, NY
Old Chatham, Tuesday, 20 October, 09:43
Clear. Feels like 44°. High 64°, low 39°.
Monthly outlook for Old Chatham, NY: average high 54.4°, average low 34.9°. That is 1.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 27 October (66.1°), the coolest 31 October (29°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 57° | 52.3° | +2.6° |
| 30 October – 8 November | 50.2° | 48.9° | +0.7° |
| 9 November – 18 November | at normal | 43.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — West Stockbridge (13 mi).
0Old Chatham, Wednesday, 21 October
Clear. High 61°, low 34°.
0Old Chatham, Thursday, 22 October
Clear. High 59°, low 33°.
0
Old Chatham, Friday, 23 October
Partly cloudy. High 49°, low 37°.
0
Old Chatham, Saturday, 24 October
Mostly clear. High 53°, low 34°.
0Old Chatham, Sunday, 25 October
Partly cloudy. High 59°, low 34°.
0
Old Chatham, Monday, 26 October
Overcast. High 64°, low 42°.
0.05
Old Chatham, Tuesday, 27 October
Light rain. High 66°, low 47°.
0.14
Old Chatham, Wednesday, 28 October
Snow. High 44°, low 31°.
0Old Chatham, Thursday, 29 October
Partly cloudy. High 49°, low 29°.
0.04Old Chatham, Friday, 30 October
Light rain. High 54°, low 36°.
0Old Chatham, Saturday, 31 October
Clear. High 44°, low 29°.
0Old Chatham, Sunday, 1 November
Overcast. High 51°, low 31°.
0.01Old Chatham, Monday, 2 November
Light rain. High 50°, low 35°.
0Old Chatham, Tuesday, 3 November
Clear. High 52°, low 32°.
0Old Chatham, Wednesday, 4 November
Overcast. High 51°, low 35°.
0.13
Old Chatham, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Old 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.
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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