Weather in Chatham, NH
Chatham, Sunday, 25 October, 17:25
Clear. Feels like 53°. High 60°, low 27°.
Monthly outlook for Chatham, NH: average high 51°, average low 33.5°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 5 days and 2.5 inches. The warmest day looks like 26 October (62.4°), the coolest 27 October (25°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 53.7° | 50.8° | +1.6° |
| 4 November – 13 November | 46.5° | 46.5° | +0° |
| 14 November – 23 November | at normal | 41.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lovell (8 mi).
0
Chatham, Monday, 26 October
Partly cloudy. High 62°, low 30°.
0Chatham, Tuesday, 27 October
Clear. High 45°, low 25°.
0Chatham, Wednesday, 28 October
Clear. High 48°, low 26°.
0
Chatham, Thursday, 29 October
Overcast. High 62°, low 40°.
0.07
Chatham, Friday, 30 October
Light rain. High 57°, low 40°.
0Chatham, Saturday, 31 October
Clear. High 53°, low 34°.
0Chatham, Sunday, 1 November
Overcast. High 53°, low 34°.
0Chatham, Monday, 2 November
Overcast. High 53°, low 40°.
0Chatham, Tuesday, 3 November
Overcast. High 44°, low 30°.
0Chatham, Wednesday, 4 November
Overcast. High 45°, low 31°.
0.29Chatham, Thursday, 5 November
Rain. High 42°, low 38°.
0Chatham, Friday, 6 November
Partly cloudy. High 51°, low 34°.
0Chatham, Saturday, 7 November
Clear. High 51°, low 31°.
0Chatham, Sunday, 8 November
Overcast. High 44°, low 33°.
0.51Chatham, Monday, 9 November
Rain. High 46°, low 40°.
0.15
Chatham, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.16Chatham, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.18Chatham, Thursday, 12 November
Climate normal for this date — 60-year average.
0.18Chatham, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Chatham, Saturday, 14 November
Climate normal for this date — 60-year average.
0.15Chatham, Sunday, 15 November
Climate normal for this date — 60-year average.
0.19Chatham, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Chatham, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Chatham, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Chatham, Thursday, 19 November
Climate normal for this date — 60-year average.
0.17Chatham, Friday, 20 November
Climate normal for this date — 60-year average.
0.15Chatham, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12Chatham, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Chatham, Monday, 23 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, NH 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, NH 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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