Chevy Chase, Washington, DC Weather - Forecast & Monthly Averages

TEMPERATURE	38
HUMIDITY	55
PRESSURE	100170
WIND COND.	290 18.4

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Weather Quick Facts

The highest monthly average temperature in Chevy Chase for July is 80.8 degrees
The lowest monthly average temperature in Chevy Chase for January is 37.1 degrees
The most monthly precipitation in Chevy Chase occurs in June with 5.3 inches
The air quality index in Chevy Chase is 12% worse than the national average
The pollution index in Chevy Chase is 439% worse than the national average

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Chevy Chase 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	28°F	47°F	37°F	2.7"
February	29°F	50°F	38°F	2.3"
March	37°F	60°F	47°F	3.2"
April	47°F	71°F	58°F	3.4"
May	56°F	78°F	67°F	4.6"
June	67°F	87°F	77°F	5.3"
July	72°F	91°F	81°F	4.2"
August	70°F	90°F	79°F	3.2"
September	63°F	83°F	72°F	3.5"
October	52°F	72°F	61°F	5.0"
November	40°F	61°F	50°F	2.5"
December	33°F	52°F	42°F	3.8"

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Chevy Chase 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	Chevy Chase	Washington	District of Columbia
Air quality index	47	47	49
Pollution index	14,693,900	5,554,010	5,554,010

Chevy Chase air quality

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

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.060%
Carbon Tetrachloride	0.010%
Lead	0.004%
Mercury	0.010%

Average monthly Chevy Chase temperature with heat index

Chevy Chase monthly precipitation with daily maximum

Chevy Chase monthly snow depth with daily maximum

Chevy Chase monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Maryland City, MD	17,681	46	8.0%
North Laurel, MD	24,856	46	8.0%
Savage, MD	6,849	46	8.0%
Fairland, MD	25,649	47	6.0%
Layhill, MD	5,112	47	6.0%
Washington, DC	701,974	47	6.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Vancouver, BC	694,440	n/a
Boston, MA	689,326	43	14.0%
Denver, CO	715,878	58	16.0%
El Paso, TX	679,879	53	6.0%
Detroit, MI	672,351	56	12.0%
Washington, DC	701,974	47	6.0%

Source: The Chevy Chase, Washington, DC 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.