TODAY FEB18
TEMPERATURE37
HUMIDITY50
PRESSURE30.33
WIND COND.30 5.8
  • 4739Tue60%80%
  • 4323Wed
  • 3318Thu
  • 3423Fri
  • 4630Sat
daynightWeather update from White Plains - Westchester County Airport at
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Cos Cob Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January23°F39°F30°F3.0"
February23°F40°F31°F2.6"
March30°F49°F39°F3.5"
April41°F62°F50°F4.2"
May50°F71°F60°F4.2"
June60°F79°F69°F5.1"
July66°F84°F74°F4.4"
August64°F82°F72°F4.2"
September57°F77°F66°F4.3"
October47°F65°F55°F5.1"
November37°F54°F45°F3.1"
December29°F44°F36°F4.5"

Did you know?

  • The highest monthly average temperature in Cos Cob for July is 74 degrees.
  • The lowest monthly average temperature in Cos Cob for January is 30 degrees.
  • The most monthly precipitation in Cos Cob occurs in June with 5.1 inches.
  • The air quality index in Cos Cob is 5% better than the national average.
  • The pollution index in Cos Cob is 235% worse than the national average.

Compare Cos Cob, CT Weather To Other Cities

Cos Cob air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexCos CobConnecticutNational
Air quality index474350
Pollution index16,950,7007,127,5315,066,862

Cos Cob air quality information

MeasurementTotal
Days measured365
Days with good air quality200
Days with moderate air quality146
Days w/ poor A.Q. for sensitive groups18
Days with unhealthy air quality1

Cos Cob air quality information

PollutantTotal
Arsenic0.030%
Benzene0.140%
Carbon Tetrachloride0.070%
Lead0.080%
Mercury0.030%

Average monthly Cos Cob temperature with heat index

Cos Cob monthly precipitation with daily maximum

Cos Cob monthly snow depth with daily maximum

Cos Cob monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Darien, CT21,519476%
Norwalk, CT87,930476%
Stamford, CT127,410476%
Armonk, NY4,303476%
Bedford, NY1,953476%
Cos Cob, CT6,535476%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Parkwood, WA6,5351766%
Clarkston Heights-Vineland, WA6,5313138%
Aquia Harbour, VA6,530492%
Brier, WA6,530492%
South Run, VA6,529492%
Cos Cob, CT6,535476%
Source: The Cos Cob, CT weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.
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