Gaithersburg, MD Weather - Forecast & Monthly Averages

TEMPERATURE	49
HUMIDITY	56
PRESSURE	102170
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Gaithersburg for July is 75.6 degrees
The lowest monthly average temperature in Gaithersburg for January is 31.4 degrees
The most monthly precipitation in Gaithersburg occurs in October with 9.4 inches
The air quality index in Gaithersburg is 12% worse than the national average
The pollution index in Gaithersburg is 455% worse than the national average

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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.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	24°F	41°F	31°F	4.1"
February	26°F	44°F	34°F	5.6"
March	34°F	55°F	43°F	6.4"
April	44°F	68°F	55°F	6.1"
May	55°F	76°F	64°F	9.2"
June	63°F	84°F	72°F	6.0"
July	66°F	87°F	76°F	5.5"
August	64°F	85°F	73°F	7.7"
September	58°F	79°F	67°F	7.6"
October	46°F	67°F	55°F	9.4"
November	36°F	55°F	44°F	5.4"
December	30°F	46°F	37°F	6.8"

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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.
Index	Gaithersburg	Maryland	National
Air quality index	47	43	42
Pollution index	15,133,000	5,342,367	2,726,193

Gaithersburg air quality information

Measurement	Total
Days measured	365
Days with good air quality	209
Days with moderate air quality	145
Days w/ poor A.Q. for sensitive groups	10
Days with unhealthy air quality	1

Gaithersburg air quality information

Pollutant	Total
Arsenic	0.070%
Benzene	0.130%
Carbon Tetrachloride	0.060%
Lead	0.070%
Mercury	0.130%

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	Population	Air Quality Index	National Avg.
Buckeystown, MD	1,289	40	20.0%
Monrovia, MD	1,556	40	20.0%
Adamstown, MD	2,130	40	20.0%
Urbana, MD	12,362	40	20.0%
College Park, MD	32,221	47	6.0%
Gaithersburg, MD	67,878	47	6.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Palatine, IL	67,875	55	10.0%
Redmond, WA	67,959	45	10.0%
Rogers, AR	67,787	44	12.0%
Palo Alto, CA	67,973	43	14.0%
Muncie, IN	67,739	35	30.0%
Gaithersburg, MD	67,878	47	6.0%

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.