Weather in Old Greenwich, CT
Old Greenwich, Sunday, 15 November, 12:04
Mostly clear. Feels like 44°. High 49°, low 37°.
Monthly outlook for Old Greenwich, CT: average high 52.7°, average low 40.9°. That is 2° above the climate normal for November. Precipitation is expected on 1 day (about 0.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 November (60.9°), the coolest 17 November (32.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 53.8° | 49.6° | +2.3° |
| 25 November – 4 December | 50.8° | 47.2° | +2° |
| 5 December – 14 December | at normal | 42.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Pemberwick (5 mi).
0
Old Greenwich, Monday, 16 November
Overcast. High 47°, low 38°.
0
Old Greenwich, Tuesday, 17 November
Clear. High 54°, low 32°.
0Old Greenwich, Wednesday, 18 November
Mostly clear. High 59°, low 39°.
0Old Greenwich, Thursday, 19 November
Mostly clear. High 60°, low 37°.
0Old Greenwich, Friday, 20 November
Clear. High 61°, low 43°.
0
Old Greenwich, Saturday, 21 November
Partly cloudy. High 55°, low 44°.
0Old Greenwich, Sunday, 22 November
Overcast. High 55°, low 51°.
0Old Greenwich, Monday, 23 November
Overcast. High 54°, low 45°.
0.02
Old Greenwich, Tuesday, 24 November
Light rain. High 45°, low 41°.
0Old Greenwich, Wednesday, 25 November
Overcast. High 47°, low 38°.
0Old Greenwich, Thursday, 26 November
Partly cloudy. High 52°, low 40°.
0Old Greenwich, Friday, 27 November
Overcast. High 52°, low 44°.
0.91Old Greenwich, Saturday, 28 November
Heavy rain. High 58°, low 52°.
0Old Greenwich, Sunday, 29 November
Overcast. High 54°, low 40°.
0Old Greenwich, Monday, 30 November
Overcast. High 41°, low 34°.
0.14
Old Greenwich, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12Old Greenwich, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.14Old Greenwich, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Old Greenwich, Friday, 4 December
Climate normal for this date — 60-year average.
0.15Old Greenwich, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Old Greenwich, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Old Greenwich, Monday, 7 December
Climate normal for this date — 60-year average.
0.1Old Greenwich, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.2Old Greenwich, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.11Old Greenwich, Thursday, 10 December
Climate normal for this date — 60-year average.
0.22Old Greenwich, Friday, 11 December
Climate normal for this date — 60-year average.
0.13Old Greenwich, Saturday, 12 December
Climate normal for this date — 60-year average.
0.11Old Greenwich, Sunday, 13 December
Climate normal for this date — 60-year average.
0.17Old Greenwich, Monday, 14 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 Old Greenwich, CT 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 Greenwich, CT 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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