TODAY AUG20
TEMPERATURE73
HUMIDITY90
PRESSURE30.07
WIND COND.50 10.3
  • 8573Tue30%70%
  • 8663Wed50%20%
  • 8061Thu
  • 8363Fri
  • 8466Sat
daynightWeather update from Georgetown - Delaware Coastal Airport at

Preston 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
January29°F43°F36°F2.7"
February30°F45°F37°F7.4"
March37°F55°F45°F3.9"
April47°F67°F57°F2.4"
May57°F76°F66°F4.8"
June66°F84°F75°F8.6"
July71°F88°F79°F10.7"
August68°F85°F76°F8.2"
September62°F80°F71°F5.1"
October52°F68°F60°F4.5"
November41°F57°F49°F4.8"
December35°F48°F41°F3.2"

Did you know?

  • The highest monthly average temperature in Preston for July is 79 degrees.
  • The lowest monthly average temperature in Preston for January is 36 degrees.
  • The most monthly precipitation in Preston occurs in July with 10.7 inches.
  • The air quality index in Preston is 25% better than the national average.
  • The pollution index in Preston is 73% better than the national average.

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Compare Preston, MD Weather To Other Cities

Preston 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.
IndexPrestonMarylandNational
Air quality index374350
Pollution index1,358,3706,283,4705,066,862

Preston air quality information

MeasurementTotal
Days measured365
Days with good air quality315
Days with moderate air quality50
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Preston air quality information

PollutantTotal
Arsenic0.000%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.000%
Mercury0.000%

Average monthly Preston temperature with heat index

Preston monthly precipitation with daily maximum

Preston monthly snow depth with daily maximum

Preston monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Brookview, MD483628%
Eldorado, MD583628%
Williston, MD1083628%
Denton, MD4,3643628%
Federalsburg, MD2,6753628%
Preston, MD9033726%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Dasher, GA9033628%
Bromley, KY903548%
Lakeville, CT9033922%
Rogers, TX9033628%
Killdeer, ND9033432%
Preston, MD9033726%
Source: The Preston, MD 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.