TODAY AUG14
TEMPERATURE79
HUMIDITY54
PRESSURE29.95
WIND COND.260 11.4
  • 8868Wed
  • 8970Thu20%
  • 8769Fri50%50%
  • 8466Sat40%
  • 8165Sun
daynightWeather update from Carroll County Regional Jack B Poage Field at

Westminster 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
January21°F41°F31°F2.3"
February21°F42°F31°F2.6"
March30°F54°F41°F3.0"
April40°F66°F53°F3.5"
May50°F75°F62°F4.2"
June60°F82°F71°F3.7"
July63°F86°F75°F4.6"
August61°F84°F72°F4.7"
September54°F78°F65°F5.1"
October44°F67°F55°F4.8"
November33°F56°F44°F2.7"
December27°F46°F36°F3.3"

Did you know?

  • The highest monthly average temperature in Westminster for July is 75 degrees.
  • The lowest monthly average temperature in Westminster for January is 31 degrees.
  • The most monthly precipitation in Westminster occurs in September with 5.1 inches.
  • The air quality index in Westminster is 13% better than the national average.
  • The pollution index in Westminster is 9% worse than the national average.

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Compare Westminster, MD Weather To Other Cities

Westminster 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.
IndexWestminsterMarylandNational
Air quality index434350
Pollution index5,553,8706,283,4705,066,862

Westminster air quality information

MeasurementTotal
Days measured365
Days with good air quality251
Days with moderate air quality112
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Westminster air quality information

PollutantTotal
Arsenic0.004%
Benzene0.070%
Carbon Tetrachloride0.010%
Lead0.410%
Mercury0.070%

Average monthly Westminster temperature with heat index

Westminster monthly precipitation with daily maximum

Westminster monthly snow depth with daily maximum

Westminster monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
New Market, MD1,1334118%
Manchester, MD4,8144314%
New Windsor, MD1,2874314%
Littlestown, PA4,4494314%
Middleburg, MD194314%
Westminster, MD18,6654314%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Morristown, NJ18,677536%
Forest Park, OH18,679548%
Deerfield, IL18,6866020%
Rosedale, MD18,641468%
Augusta, ME18,6912942%
Westminster, MD18,6654314%
Source: The Westminster, 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.