TODAY OCT19
TEMPERATURE62
HUMIDITY48
PRESSURE30.25
WIND COND.170 6.9
  • 6443Sat60%20%
  • 5035Sun
  • 5542Mon
  • 6242Tue
  • 5738Wed
daynightWeather update from Gaithersburg - Montgomery County Airport at
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Gaithersburg 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 Gaithersburg for July is 76 degrees.
  • The lowest monthly average temperature in Gaithersburg for January is 31 degrees.
  • The most monthly precipitation in Gaithersburg occurs in October with 9.4 inches.
  • The air quality index in Gaithersburg is 1% better than the national average.
  • The pollution index in Gaithersburg is 198% worse than the national average.

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Compare Gaithersburg, MD Weather To Other Cities

Gaithersburg 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.
IndexGaithersburgMarylandNational
Air quality index494350
Pollution index15,133,0006,283,4705,066,862

Gaithersburg 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

Gaithersburg air quality information

PollutantTotal
Arsenic0.070%
Benzene0.130%
Carbon Tetrachloride0.060%
Lead0.070%
Mercury0.130%

Average monthly Gaithersburg temperature with heat index

Gaithersburg monthly precipitation with daily maximum

Gaithersburg monthly snow depth with daily maximum

Gaithersburg monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Adamstown, MD2,5214118%
Monrovia, MD2264118%
Buckeystown, MD1,0754118%
Urbana, MD10,8724118%
Aspen Hill, MD52,028492%
Gaithersburg, MD66,104492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Victoria, TX66,1392746%
Yuba City, CA66,1474216%
North Little Rock, AR66,042476%
Eagan, MN65,8744412%
Bayonne, NJ65,772536%
Gaithersburg, MD66,104492%
Source: The Gaithersburg, 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.