TODAY AUG19
TEMPERATURE87
HUMIDITY68
PRESSURE29.82
WIND COND.210 8.1
  • 8273Mon20%20%
  • 8477Tue30%50%
  • 8570Wed30%
  • 8068Thu
  • 8270Fri
daynightWeather update from Patuxent River, Naval Air Station at

Deal Island 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
January27°F48°F37°F3.2"
February30°F51°F39°F2.6"
March36°F58°F46°F3.5"
April45°F70°F57°F3.5"
May55°F77°F66°F3.5"
June63°F86°F74°F5.0"
July70°F90°F79°F5.6"
August66°F87°F76°F7.4"
September61°F82°F71°F4.9"
October50°F72°F60°F5.2"
November37°F61°F49°F1.8"
December33°F54°F43°F2.9"

Did you know?

  • The highest monthly average temperature in Deal Island for July is 79 degrees.
  • The lowest monthly average temperature in Deal Island for January is 37 degrees.
  • The most monthly precipitation in Deal Island occurs in August with 7.4 inches.
  • The air quality index in Deal Island is 25% better than the national average.
  • The pollution index in Deal Island is 49% better than the national average.

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Compare Deal Island, MD Weather To Other Cities

Deal Island 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.
IndexDeal IslandMarylandNational
Air quality index374350
Pollution index2,538,1606,283,4705,066,862

Deal Island 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

Deal Island air quality information

PollutantTotal
Arsenic0.002%
Benzene0.030%
Carbon Tetrachloride0.004%
Lead0.010%
Mercury0.003%

Average monthly Deal Island temperature with heat index

Deal Island monthly precipitation with daily maximum

Deal Island monthly snow depth with daily maximum

Deal Island monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Allen, MD843628%
Princess Anne, MD3,3913628%
Crisfield, MD2,6593726%
Frenchtown-Rumbly, MD963726%
Nanticoke Acres, MD1253726%
Deal Island, MD4433726%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Lanesboro, PA4434020%
Warm Springs, GA4433922%
Bear Creek, WI4433824%
Honomu, HI443142184%
Walnut Creek, AZ4431864%
Deal Island, MD4433726%
Source: The Deal Island, 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.