Weather in Cos Cob, CT
Cos Cob, Tuesday, 10 November, 08:09
Clear. Feels like 47°. High 59°, low 45°.
Monthly outlook for Cos Cob, CT: average high 52.7°, average low 42.9°. That is 1.3° above the climate normal for November. Precipitation is expected on 6 days (about 3.6 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 24 November (63.7°), the coolest 14 November (35°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 November – 19 November | 50.1° | 51.3° | -0.7° |
| 20 November – 29 November | 56.9° | 48.7° | +4.5° |
| 30 November – 9 December | at normal | 44.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Pemberwick (4 mi).
0
Cos Cob, Wednesday, 11 November
Overcast. High 60°, low 48°.
0.24
Cos Cob, Thursday, 12 November
Rain. High 54°, low 45°.
0.94Cos Cob, Friday, 13 November
Rain. High 44°, low 38°.
0.09Cos Cob, Saturday, 14 November
Light rain. High 43°, low 35°.
0
Cos Cob, Sunday, 15 November
Mostly clear. High 48°, low 35°.
0Cos Cob, Monday, 16 November
Clear. High 48°, low 38°.
0Cos Cob, Tuesday, 17 November
Clear. High 47°, low 38°.
0Cos Cob, Wednesday, 18 November
Clear. High 49°, low 38°.
0Cos Cob, Thursday, 19 November
Clear. High 49°, low 37°.
0Cos Cob, Friday, 20 November
Clear. High 53°, low 43°.
0Cos Cob, Saturday, 21 November
Overcast. High 58°, low 47°.
1.17Cos Cob, Sunday, 22 November
Rain. High 57°, low 57°.
0.57Cos Cob, Monday, 23 November
Rain. High 60°, low 55°.
0.57Cos Cob, Tuesday, 24 November
Rain. High 64°, low 46°.
0Cos Cob, Wednesday, 25 November
Clear. High 48°, low 41°.
0.21
Cos Cob, Thursday, 26 November
Climate normal for this date — 60-year average.
0.13
Cos Cob, Friday, 27 November
Climate normal for this date — 60-year average.
0.15Cos Cob, Saturday, 28 November
Climate normal for this date — 60-year average.
0.09Cos Cob, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13Cos Cob, Monday, 30 November
Climate normal for this date — 60-year average.
0.14Cos Cob, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12Cos Cob, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.14Cos Cob, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Cos Cob, Friday, 4 December
Climate normal for this date — 60-year average.
0.15Cos Cob, Saturday, 5 December
Climate normal for this date — 60-year average.
0.15Cos Cob, Sunday, 6 December
Climate normal for this date — 60-year average.
0.12Cos Cob, Monday, 7 December
Climate normal for this date — 60-year average.
0.1Cos Cob, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.2Cos Cob, Wednesday, 9 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 Cos Cob, 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 Cos Cob, 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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