TODAY NOV20
TEMPERATURE50
HUMIDITY96
PRESSURE29.78
WIND COND.170 6.9
  • 4220Wed30%
  • 272130%40%
  • 3429Fri
  • 4742Sat40%
  • 5143Sun50%40%
daynightWeather update from Chatham, Chatham Municipal Airport at

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Chatham 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
January26°F39°F32°F5.5"
February23°F37°F30°F2.2"
March29°F45°F36°F6.7"
April37°F51°F44°F7.9"
May47°F60°F53°F6.7"
June57°F71°F63°F1.4"
July63°F77°F70°F5.0"
August64°F79°F71°F1.8"
September59°F74°F66°F4.9"
October51°F64°F57°F5.6"
November39°F54°F47°F4.6"
December30°F43°F36°F5.5"

Did you know?

  • The highest monthly average temperature in Chatham for August is 71 degrees.
  • The lowest monthly average temperature in Chatham for February is 30 degrees.
  • The most monthly precipitation in Chatham occurs in April with 7.9 inches.
  • The air quality index in Chatham is 33% better than the national average.
  • The pollution index in Chatham is 55% worse than the national average.

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Compare Chatham, MA Weather To Other Cities

Chatham 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.
IndexChathamMassachusettsNational
Air quality index334050
Pollution index7,903,83012,377,8395,066,862

Chatham air quality information

MeasurementTotal
Days measured317
Days with good air quality308
Days with moderate air quality7
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Chatham air quality information

PollutantTotal
Arsenic0.060%
Benzene0.070%
Carbon Tetrachloride0.010%
Lead0.080%
Mercury0.030%

Average monthly Chatham temperature with heat index

Chatham monthly precipitation with daily maximum

Chatham monthly snow depth with daily maximum

Chatham monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Dennis, MA2,5073334%
Harwich Center, MA1,4233334%
Orleans, MA1,9373334%
West Dennis, MA2,4743334%
Dennis Port, MA2,6803334%
Chatham, MA1,4293334%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Albany, LA1,4292844%
Ringgold, LA1,4294314%
Parker City, IN1,4293628%
Decatur, TN1,429394%
Bayou Country Club, LA1,4293432%
Chatham, MA1,4293334%
Source: The Chatham, MA 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.