TODAY NOV16
TEMPERATURE44
HUMIDITY43
PRESSURE30.17
WIND COND.290 4.7
  • 3925Sat
  • 4435Sun20%40%
  • 4633Mon40%40%
  • 5233Tue30%
  • 5032Wed
daynightWeather update from Trenton, Mercer County Airport at
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Princeton Junction 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
January25°F42°F33°F3.3"
February25°F43°F34°F2.4"
March33°F53°F42°F3.4"
April43°F66°F54°F3.8"
May52°F75°F63°F3.9"
June62°F83°F72°F5.3"
July67°F88°F77°F5.1"
August65°F85°F75°F4.7"
September59°F79°F68°F3.5"
October48°F68°F57°F4.2"
November37°F57°F46°F2.9"
December31°F47°F38°F4.3"

Did you know?

  • The highest monthly average temperature in Princeton Junction for July is 77 degrees.
  • The lowest monthly average temperature in Princeton Junction for January is 33 degrees.
  • The most monthly precipitation in Princeton Junction occurs in June with 5.3 inches.
  • The air quality index in Princeton Junction is 20% better than the national average.
  • The pollution index in Princeton Junction is 35% better than the national average.

Compare Princeton Junction, NJ Weather To Other Cities

Princeton Junction 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.
IndexPrinceton JunctionNew JerseyNational
Air quality index404550
Pollution index3,313,9207,146,1325,066,862

Princeton Junction 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

Princeton Junction air quality information

PollutantTotal
Arsenic0.350%
Benzene0.020%
Carbon Tetrachloride0.004%
Lead0.350%
Mercury0.340%

Average monthly Princeton Junction temperature with heat index

Princeton Junction monthly precipitation with daily maximum

Princeton Junction monthly snow depth with daily maximum

Princeton Junction monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Belle Mead, NJ1964020%
Clearbrook Park, NJ3,1144020%
Dayton, NJ7,3084020%
Englishtown, NJ2,1894020%
Franklin Center, NJ4,7014020%
Princeton Junction, NJ2,5034020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Sewanee, TN2,5034412%
East Sonora, CA2,5043922%
Blountstown, FL2,5043726%
Halesite, NY2,504476%
Pearl River, LA2,5044510%
Princeton Junction, NJ2,5034020%
Source: The Princeton Junction, 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.
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