Weather in Cos Cob, CT
Cos Cob, Sunday, 15 November, 15:52
Partly cloudy. Feels like 44°. High 50°, low 37°.
Monthly outlook for Cos Cob, CT: average high 55.1°, average low 42.9°. That is 3.3° 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 (62.8°), the coolest 24 November (34.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 54° | 49.6° | +2.5° |
| 25 November – 4 December | 56.9° | 47.2° | +5.4° |
| 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 (4 mi).
0
Cos Cob, Monday, 16 November
Overcast. High 49°, low 38°.
0
Cos Cob, Tuesday, 17 November
Clear. High 54°, low 36°.
0Cos Cob, Wednesday, 18 November
Clear. High 59°, low 39°.
0Cos Cob, Thursday, 19 November
Clear. High 60°, low 36°.
0Cos Cob, Friday, 20 November
Clear. High 61°, low 40°.
0Cos Cob, Saturday, 21 November
Overcast. High 53°, low 42°.
0.48
Cos Cob, Sunday, 22 November
Rain. High 54°, low 52°.
0Cos Cob, Monday, 23 November
Partly cloudy. High 52°, low 41°.
0Cos Cob, Tuesday, 24 November
Clear. High 46°, low 34°.
0Cos Cob, Wednesday, 25 November
Clear. High 49°, low 38°.
0Cos Cob, Thursday, 26 November
Overcast. High 55°, low 50°.
0.29Cos Cob, Friday, 27 November
Light rain. High 63°, low 54°.
0.83Cos Cob, Saturday, 28 November
Heavy rain. High 58°, low 53°.
0Cos Cob, Sunday, 29 November
Overcast. High 56°, low 48°.
0.33Cos Cob, Monday, 30 November
Rain. High 60°, low 48°.
0.14
Cos 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.
0.11Cos Cob, Sunday, 13 December
Climate normal for this date — 60-year average.
0.17Cos Cob, 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 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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