TODAY DEC06
TEMPERATURE52
HUMIDITY43
PRESSURE30.09
WIND COND.190 18.3
  • 4227Sat
  • 4839Sun30%
  • 5951Mon90%90%
  • 6136Tue70%60%
  • 4325Wed50%
daynightWeather update from Dover Air Force Base at
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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"

Did you know?

  • 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 24% better than the national average.
  • The pollution index in Hartly is 37% better than the national average.

Compare Hartly, DE Weather To Other Cities

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 index384150
Pollution index3,193,1803,759,2125,066,862

Hartly air quality information

MeasurementTotal
Days measured359
Days with good air quality290
Days with moderate air quality69
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

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.
Camden, DE3,4943824%
Dover Base Housing, DE3,3523824%
Kent Acres, DE2,3483824%
Magnolia, DE2033824%
Smyrna, DE11,0813824%
Hartly, DE503824%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Scipio, IN503922%
Watrous, NM501570%
Morrison Bluff, AR503530%
St. George, WV50365630%
Northboro, IA50484%
Hartly, DE503824%
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.
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