Weather in Old Greenwich, CT
Old Greenwich, Sunday, 15 November, 16:51
Clear. Feels like 43°. High 49°, low 37°.
Monthly outlook for Old Greenwich, CT: average high 55.3°, average low 43.7°. That is 3.4° above the climate normal for November. Precipitation is expected on 4 days (about 1.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 27 November (63°), the coolest 24 November (35.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 54.2° | 49.6° | +2.5° |
| 25 November – 4 December | 57.3° | 47.2° | +5.6° |
| 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 50°, low 38°.
0
Old Greenwich, Tuesday, 17 November
Clear. High 54°, low 36°.
0Old Greenwich, Wednesday, 18 November
Clear. High 59°, low 40°.
0Old Greenwich, Thursday, 19 November
Clear. High 61°, low 37°.
0Old Greenwich, Friday, 20 November
Clear. High 62°, low 41°.
0Old Greenwich, Saturday, 21 November
Overcast. High 54°, low 43°.
0.52
Old Greenwich, Sunday, 22 November
Rain. High 54°, low 53°.
0
Old Greenwich, Monday, 23 November
Partly cloudy. High 53°, low 42°.
0Old Greenwich, Tuesday, 24 November
Clear. High 46°, low 35°.
0Old Greenwich, Wednesday, 25 November
Clear. High 50°, low 39°.
0Old Greenwich, Thursday, 26 November
Overcast. High 56°, low 51°.
0.27Old Greenwich, Friday, 27 November
Light rain. High 63°, low 54°.
0.8Old Greenwich, Saturday, 28 November
Heavy rain. High 58°, low 54°.
0Old Greenwich, Sunday, 29 November
Overcast. High 56°, low 49°.
0.32Old Greenwich, Monday, 30 November
Rain. High 60°, low 49°.
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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