TODAY MAR01
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 3931Tue
  • 5234Wed
  • 4828Thu
  • 4228Fri
  • 4128Sat
daynightWeather update from Dover Air Force Base at

Key findings

  • The highest monthly average temperature in Hartly for July is 78 degrees
  • The lowest monthly average temperature in Hartly for January is 35 degrees
  • The most monthly precipitation in Hartly occurs in July with 10.2 inches
  • The air quality index in Hartly is 16% better than the national average
  • The pollution index in Hartly is 37% better than the national average

Compare Hartly, DE Weather

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      Hartly 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
      January28°F44°F35°F6.3"
      February28°F46°F36°F4.5"
      March35°F55°F44°F6.6"
      April45°F66°F55°F6.3"
      May55°F75°F64°F5.8"
      June64°F83°F73°F8.1"
      July69°F87°F78°F10.2"
      August67°F85°F76°F9.2"
      September61°F79°F69°F9.7"
      October50°F69°F59°F9.2"
      November39°F58°F48°F5.9"
      December33°F50°F41°F7.5"

      Hartly 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.
      IndexHartlyDelawareNational
      Air quality index424150
      Pollution index3,193,1803,759,2125,066,862

      Hartly air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality293
      Days with moderate air quality72
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Hartly air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.010%
      Mercury0.020%

      Average monthly Hartly temperature with heat index

      Hartly monthly precipitation with daily maximum

      Hartly monthly snow depth with daily maximum

      Hartly monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Dover Base Housing, DE3,3524216%
      Leipsic, DE1454216%
      Riverview, DE2,9934216%
      Templeville, MD1104216%
      Felton, DE1,5664216%
      Hartly, DE504216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bruceton Mills, WV503628%
      Morrison Bluff, AR503628%
      North Crows Nest, IN50548%
      Shawmut, MT502158%
      Regal, MN503236%
      Hartly, DE504216%
      Source: The Hartly, DE 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.