TODAY DEC18
TEMPERATURE35
HUMIDITY77
PRESSURE102270
WIND COND.220 9.4
  • 4224Thu
  • 3321Fri30%50%
  • 319Sat30%
  • 216Sun
  • 2513Mon
daynightWeather update from Pease Air Force Base / Portsmouth at
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Weather Quick Facts

  • The highest monthly average temperature in Exeter for August is 71.1 degrees
  • The lowest monthly average temperature in Exeter for February is 25 degrees
  • The most monthly precipitation in Exeter occurs in October with 15.5 inches
  • The air quality index in Exeter is 12% better than the national average
  • The pollution index in Exeter is 97% better than the national average

Compare Exeter, NH Weather

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      Exeter 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
      January19°F33°F25°F4.6"
      February18°F34°F25°F5.3"
      March25°F42°F33°F8.6"
      April37°F54°F45°F11.3"
      May46°F63°F54°F9.8"
      June57°F76°F66°F6.0"
      July62°F80°F70°F6.2"
      August63°F81°F71°F4.7"
      September56°F74°F65°F9.2"
      October47°F61°F54°F15.5"
      November35°F49°F41°F6.8"
      December22°F36°F28°F4.6"

      Exeter 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.
      IndexExeterNew HampshireNational
      Air quality index373442
      Pollution index91,7903,959,6182,726,193

      Exeter air quality

      MeasurementTotal
      Days measured365
      Days with good air quality353
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.002%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.000%

      Average monthly Exeter temperature with heat index

      Exeter monthly precipitation with daily maximum

      Exeter monthly snow depth with daily maximum

      Exeter monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Dover, NH31,9223726.0%
      Seabrook Beach, NH9763726.0%
      Epping, NH3,0013726.0%
      Newfields, NH2543726.0%
      Newburyport, MA18,1973726.0%
      Exeter, NH9,3493726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Edwards, CO9,347476.0%
      Crestline, CA9,3518978.0%
      Carencro, LA9,3464118.0%
      Ladysmith, BC9,354n/a 
      Claymont, DE9,343512.0%
      Exeter, NH9,3493726.0%
      Source: The Exeter, NH 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.