TODAY MAY20
TEMPERATURE78
HUMIDITY76
PRESSURE30.01
WIND COND.230 11.4
  • 7760Mon40%
  • 7461Tue40%50%
  • 8061Wed30%
  • 7959Thu
  • 8062Fri
daynightWeather update from Wilmington, New Castle County Airport at

Salem 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
January8°F72°F36°Fn/a
February11°F71°F35°Fn/a
March13°F80°F44°Fn/a
April32°F92°F54°Fn/a
May45°F88°F64°Fn/a
June57°F95°F74°Fn/a
July61°F94°F76°Fn/a
August61°F96°F76°Fn/a
September49°F90°F69°Fn/a
October38°F86°F59°Fn/a
November27°F75°F49°Fn/a
December17°F75°F40°Fn/a

Did you know?

  • The highest monthly average temperature in Salem for July is 76 degrees.
  • The lowest monthly average temperature in Salem for February is 35 degrees.
  • The most monthly precipitation in Salem occurs in January with 0 inches.
  • The air quality index in Salem is 37% better than the national average.
  • The pollution index in Salem is 57% better than the national average.

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Compare Salem, NJ Weather To Other Cities

Salem 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.
IndexSalemNew JerseyNational
Air quality index314550
Pollution index2,169,6007,146,1325,066,862

Salem air quality information

MeasurementTotal
Days measured306
Days with good air quality299
Days with moderate air quality7
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Salem air quality information

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

Average monthly Salem temperature with heat index

Salem monthly precipitation with daily maximum

Salem monthly snow depth with daily maximum

Salem monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Seabrook Farms, NJ1,6193138%
Alloway, NJ1,4573138%
Fairton, NJ1,1593138%
Shiloh, NJ3493138%
Pennsville, NJ11,4213138%
Salem, NJ4,9313138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Laureles, TX4,9314118%
Medical Lake, WA4,9313922%
Shenandoah, PA4,9314314%
Genoa, IL4,9303138%
St. Augustine South, FL4,9303138%
Salem, NJ4,9313138%
Source: The Salem, 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.