Weather in Great Swamp, MA
Great Swamp, Wednesday, 11 November, 19:19
Clear. Feels like 44°. High 55°, low 40°.
Monthly outlook for Great Swamp, MA: average high 50°, average low 35°. That is 1.8° above the climate normal for November. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 24 November (58.2°), the coolest 26 November (28.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 49.3° | 47.8° | +0.8° |
| 21 November – 30 November | 51.3° | 44.9° | +3.5° |
| 1 December – 10 December | at normal | 40.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Granby (6 mi).
0.51
Great Swamp, Thursday, 12 November
Rain. High 47°, low 39°.
0.2Great Swamp, Friday, 13 November
Rain. High 43°, low 36°.
0
Great Swamp, Saturday, 14 November
Partly cloudy. High 45°, low 31°.
0Great Swamp, Sunday, 15 November
Partly cloudy. High 47°, low 34°.
0Great Swamp, Monday, 16 November
Partly cloudy. High 47°, low 34°.
0
Great Swamp, Tuesday, 17 November
Clear. High 49°, low 31°.
0Great Swamp, Wednesday, 18 November
Clear. High 52°, low 30°.
0Great Swamp, Thursday, 19 November
Clear. High 55°, low 31°.
0
Great Swamp, Friday, 20 November
Overcast. High 52°, low 33°.
0Great Swamp, Saturday, 21 November
Overcast. High 48°, low 39°.
0Great Swamp, Sunday, 22 November
Partly cloudy. High 57°, low 39°.
0.04Great Swamp, Monday, 23 November
Light rain. High 57°, low 43°.
0.35Great Swamp, Tuesday, 24 November
Rain. High 58°, low 41°.
0Great Swamp, Wednesday, 25 November
Clear. High 43°, low 30°.
0Great Swamp, Thursday, 26 November
Clear. High 44°, low 28°.
0.14
Great Swamp, Friday, 27 November
Climate normal for this date — 60-year average.
0.17Great Swamp, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Great Swamp, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Great Swamp, Monday, 30 November
Climate normal for this date — 60-year average.
0.13Great Swamp, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.11Great Swamp, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.15Great Swamp, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Great Swamp, Friday, 4 December
Climate normal for this date — 60-year average.
0.14Great Swamp, Saturday, 5 December
Climate normal for this date — 60-year average.
0.16Great Swamp, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Great Swamp, Monday, 7 December
Climate normal for this date — 60-year average.
0.09Great Swamp, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.16Great Swamp, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Great Swamp, Thursday, 10 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 Great Swamp, MA 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 Great Swamp, MA 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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