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Morris Plains 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
January23°F40°F31°F3.0"
February23°F42°F32°F2.9"
March31°F52°F41°F3.5"
April42°F65°F52°F3.9"
May51°F74°F62°F4.0"
June60°F82°F71°F4.9"
July66°F87°F76°F4.9"
August63°F84°F73°F4.9"
September57°F78°F67°F3.7"
October46°F67°F56°F4.2"
November36°F55°F45°F2.8"
December29°F45°F36°F4.4"

Did you know?

  • The highest monthly average temperature in Morris Plains for July is 76 degrees.
  • The lowest monthly average temperature in Morris Plains for January is 31 degrees.
  • The most monthly precipitation in Morris Plains occurs in June with 4.9 inches.
  • The air quality index in Morris Plains is 6% worse than the national average.
  • The pollution index in Morris Plains is 61% worse than the national average.

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Compare Morris Plains, NJ Weather To Other Cities

Morris Plains 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.
IndexMorris PlainsNew JerseyNational
Air quality index534550
Pollution index8,169,9307,146,1325,066,862

Morris Plains air quality information

MeasurementTotal
Days measured365
Days with good air quality161
Days with moderate air quality189
Days w/ poor A.Q. for sensitive groups15
Days with unhealthy air quality

Morris Plains air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.030%
Lead0.020%
Mercury0.010%

Average monthly Morris Plains temperature with heat index

Morris Plains monthly precipitation with daily maximum

Morris Plains monthly snow depth with daily maximum

Morris Plains monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Mendham, NJ5,0123922%
Mount Arlington, NJ5,2513922%
Succasunna, NJ8,8743922%
Victory Gardens, NJ1,6233922%
Wharton, NJ6,5863922%
Morris Plains, NJ5,612536%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
South Apopka, FL5,6133628%
Monticello, IL5,6093628%
Atlanta, TX5,6153824%
Pevely, MO5,6166020%
Swartz Creek, MI5,6173824%
Morris Plains, NJ5,612536%
Source: The Morris Plains, 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.