TODAY JUN19
TEMPERATURE85
HUMIDITY63
PRESSURE29.85
WIND COND.220 10.3
  • 9167Tue20%
  • 8466Wed20%70%
  • 8664Thu40%
  • 8465Fri
  • 8369Sat50%
daynightWeather update from Philadelphia, Philadelphia International Airport at

Greenwich Average Weather

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
January3°F73°F35°F3.3"
February10°F69°F35°F2.1"
March12°F82°F43°F2.7"
April30°F93°F55°F4.7"
May37°F93°F63°F3.3"
June51°F98°F73°F4.6"
July58°F99°F78°F3.5"
August57°F98°F77°F4.8"
September47°F93°F70°F2.9"
October36°F90°F58°F5.5"
November21°F76°F49°F3.1"
December15°F72°F38°F4.7"

Did you know?

  • The highest monthly average temperature in Greenwich for July is 78 degrees.
  • The lowest monthly average temperature in Greenwich for February is 35 degrees.
  • The most monthly precipitation in Greenwich occurs in October with 5.5 inches.
  • The air quality index in Greenwich is 14% worse than the national average.
  • The pollution index in Greenwich is 57% better than the national average.

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Compare Greenwich, NJ Weather To Other Cities

Greenwich 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.
IndexGreenwichNew JerseyNational
Air quality index574550
Pollution index2,169,6007,146,1325,066,862

Greenwich air quality information

MeasurementTotal
Days measured365
Days with good air quality110
Days with moderate air quality244
Days w/ poor A.Q. for sensitive groups11
Days with unhealthy air quality

Greenwich air quality information

PollutantTotal
Arsenic0.010%
Benzene0.030%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.004%

Average monthly Greenwich temperature with heat index

Greenwich monthly precipitation with daily maximum

Greenwich monthly snow depth with daily maximum

Greenwich monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Glassboro, NJ19,1953138%
Richwood, NJ3,4783138%
Clayton, NJ8,3863138%
Pennsville, NJ11,4213138%
Woodstown, NJ3,5483138%
Greenwich, NJ2,4925714%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Hermann, MO2,4913726%
West Fork, AR2,4913922%
East Dublin, GA2,4933824%
Jellico, TN2,4913628%
Troutman, NC2,4914020%
Greenwich, NJ2,4925714%
Source: The Greenwich, NJ 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.