Weather in Cos Cob, CT
Cos Cob, Friday, 13 November, 00:41
Overcast. Feels like 42°. High 47°, low 37°.
Monthly outlook for Cos Cob, CT: average high 53.2°, average low 40.7°. That is 2° above the climate normal for November. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 25 November (65.2°), the coolest 28 November (31.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 52.4° | 50.1° | +1.3° |
| 23 November – 2 December | 54.4° | 47.8° | +3.7° |
| 3 December – 12 December | at normal | 43.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Pemberwick (4 mi).
0
Cos Cob, Saturday, 14 November
Partly cloudy. High 45°, low 36°.
0Cos Cob, Sunday, 15 November
Overcast. High 46°, low 35°.
0Cos Cob, Monday, 16 November
Partly cloudy. High 49°, low 33°.
0Cos Cob, Tuesday, 17 November
Overcast. High 51°, low 32°.
0Cos Cob, Wednesday, 18 November
Overcast. High 56°, low 36°.
0
Cos Cob, Thursday, 19 November
Clear. High 57°, low 43°.
0Cos Cob, Friday, 20 November
Clear. High 58°, low 47°.
0Cos Cob, Saturday, 21 November
Clear. High 55°, low 45°.
0Cos Cob, Sunday, 22 November
Overcast. High 61°, low 49°.
0
Cos Cob, Monday, 23 November
Mostly clear. High 61°, low 52°.
0Cos Cob, Tuesday, 24 November
Clear. High 61°, low 50°.
0.1
Cos Cob, Wednesday, 25 November
Light rain. High 65°, low 57°.
0.1Cos Cob, Thursday, 26 November
Light rain. High 60°, low 35°.
0Cos Cob, Friday, 27 November
Clear. High 39°, low 32°.
0Cos Cob, Saturday, 28 November
Overcast. High 42°, low 31°.
0.09Cos Cob, Sunday, 29 November
Climate normal for this date — 60-year average.
0.13
Cos 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.
0.11Cos Cob, Thursday, 10 December
Climate normal for this date — 60-year average.
0.22Cos Cob, Friday, 11 December
Climate normal for this date — 60-year average.
0.13Cos Cob, Saturday, 12 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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