Cos Cob, CT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Cos Cob now
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Cos Cob weather by the hour
Cos Cob weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Cos Cob.
This week in Cos Cob
Sunrise, sunset and moon in Cos Cob
What is the weather usually like in Cos Cob?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 22°F average low
- 51.6 inprecipitation per year · 1,311 mm
- 34.0 insnowfall per year · 86 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Cos Cob: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station STAMFORD 5 N, CT US (USC00067970), adjusted for the elevation of Cos Cob.
Cos Cob weather month by month
Sunrise and sunset in Cos Cob through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:15 AM | 4:52 PM | 9 h 36 min |
| February | 6:46 AM | 5:30 PM | 10 h 43 min |
| March | 7:04 AM | 7:02 PM | 11 h 58 min |
| April | 6:13 AM | 7:35 PM | 13 h 22 min |
| May | 5:34 AM | 8:06 PM | 14 h 32 min |
| June | 5:19 AM | 8:30 PM | 15 h 10 min |
| July | 5:33 AM | 8:27 PM | 14 h 53 min |
| August | 6:02 AM | 7:54 PM | 13 h 51 min |
| September | 6:33 AM | 7:05 PM | 12 h 31 min |
| October | 7:04 AM | 6:15 PM | 11 h 10 min |
| November | 6:40 AM | 4:37 PM | 9 h 56 min |
| December | 7:10 AM | 4:28 PM | 9 h 17 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Cos Cob?
Cos Cob has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 22°F (-5°C).
It gets about 51.6 inches (1,311 mm) of precipitation a year. The wettest month is September and the driest is February. Snow is common: about 34 inches fall in an average year.
The best time to visit Cos Cob is May–June and August–September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Cos Cob
Weather in towns near Cos Cob
Questions about the weather in Cos Cob
What is the hottest month in Cos Cob?
July, with an average high of 85°F (29°C).
What is the coldest month in Cos Cob?
January, with an average low of 22°F (-5°C).
How much does it rain in Cos Cob?
About 51.6 inches (1,311 mm) a year; the wettest month is September.
Does it snow in Cos Cob?
Yes, about 34 inches of snow fall in an average year.
When is the best time to visit Cos Cob?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Cos Cob have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Cos Cob in November?
Highs average 53°F and lows 35°F, with about 4.2 inches of precipitation.
What time is sunrise in Cos Cob?
Around 6:40 AM in mid-November, and sunset around 4:37 PM. Today’s exact times are shown above.
Where does this Cos Cob weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Cos Cob.
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