TODAY AUG18
TEMPERATURE71
HUMIDITY100
PRESSURE29.91
WIND COND.
  • 8970Sat40%70%
  • 7764Sun40%40%
  • 7965Mon20%
  • 8070Tue60%
  • 8563Wed50%30%
daynightWeather update from Somerville, Somerset Airport at

Middlesex 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
January21°F41°F31°F2.8"
February22°F43°F31°F2.3"
March30°F53°F41°F3.7"
April39°F66°F52°F4.0"
May49°F75°F62°F3.7"
June58°F83°F70°F5.3"
July63°F87°F75°F5.3"
August61°F85°F72°F5.5"
September55°F79°F66°F3.6"
October43°F68°F55°F4.5"
November33°F56°F44°F3.0"
December27°F46°F36°F4.6"

Did you know?

  • The highest monthly average temperature in Middlesex for July is 75 degrees.
  • The lowest monthly average temperature in Middlesex for January is 31 degrees.
  • The most monthly precipitation in Middlesex occurs in August with 5.5 inches.
  • The air quality index in Middlesex is 19% better than the national average.
  • The pollution index in Middlesex is 10% worse than the national average.

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Compare Middlesex, NJ Weather To Other Cities

Middlesex 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.
IndexMiddlesexNew JerseyNational
Air quality index404550
Pollution index5,618,7107,146,1325,066,862

Middlesex air quality information

MeasurementTotal
Days measured365
Days with good air quality257
Days with moderate air quality106
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Middlesex air quality information

PollutantTotal
Arsenic0.004%
Benzene0.060%
Carbon Tetrachloride0.020%
Lead0.040%
Mercury0.003%

Average monthly Middlesex temperature with heat index

Middlesex monthly precipitation with daily maximum

Middlesex monthly snow depth with daily maximum

Middlesex monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Peapack and Gladstone, NJ2,5883922%
Chester, NJ1,5773922%
Mendham, NJ5,0123922%
Long Valley, NJ1,9713922%
Belle Mead, NJ1964020%
Middlesex, NJ13,8114020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mountain Home, ID13,8233628%
Metuchen, NJ13,791536%
Paradise Valley, AZ13,8337448%
Beach Park, IL13,7883530%
Knightdale, NC13,7874314%
Middlesex, NJ13,8114020%
Source: The Middlesex, 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.