TODAY NOV19
TEMPERATURE40
HUMIDITY89
PRESSURE30.2
WIND COND.
  • 5341Mon30%
  • 4831Tue50%
  • 4624Wed
  • 3221
  • 4030Fri
daynightWeather update from Gaithersburg - Montgomery County Airport at

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Rockville 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
January24°F41°F31°F4.1"
February26°F44°F34°F5.6"
March34°F55°F43°F6.4"
April44°F68°F55°F6.1"
May55°F76°F64°F9.2"
June63°F84°F72°F6.0"
July66°F87°F76°F5.5"
August64°F85°F73°F7.7"
September58°F79°F67°F7.6"
October46°F67°F55°F9.4"
November36°F55°F44°F5.4"
December30°F46°F37°F6.8"

Did you know?

  • The highest monthly average temperature in Rockville for July is 76 degrees.
  • The lowest monthly average temperature in Rockville for January is 31 degrees.
  • The most monthly precipitation in Rockville occurs in October with 9.4 inches.
  • The air quality index in Rockville is 1% better than the national average.
  • The pollution index in Rockville is 190% worse than the national average.

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Compare Rockville, MD Weather To Other Cities

Rockville 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.
IndexRockvilleMarylandNational
Air quality index494350
Pollution index14,693,9006,283,4705,066,862

Rockville air quality information

MeasurementTotal
Days measured365
Days with good air quality194
Days with moderate air quality166
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Rockville air quality information

PollutantTotal
Arsenic0.190%
Benzene0.210%
Carbon Tetrachloride0.060%
Lead0.060%
Mercury0.010%

Average monthly Rockville temperature with heat index

Rockville monthly precipitation with daily maximum

Rockville monthly snow depth with daily maximum

Rockville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Washington, DC659,009492%
Barnesville, MD152492%
Bladensburg, MD9,505492%
Burtonsville, MD9,859492%
Cheverly, MD6,390492%
Rockville, MD65,171492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Youngstown, OH65,1614510%
San Clemente, CA65,0828570%
Delray Beach, FL65,0444118%
Laguna Niguel, CA64,9848570%
Marysville, WA64,9553138%
Rockville, MD65,171492%
Source: The Rockville, 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.