Charlestown, MD Weather - Forecast & Monthly Averages

TEMPERATURE	75
HUMIDITY	50
PRESSURE	101760
WIND COND.	300 11.2

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Weather Quick Facts

The highest monthly average temperature in Charlestown for July is 80 degrees
The lowest monthly average temperature in Charlestown for January is 34.7 degrees
The most monthly precipitation in Charlestown occurs in May with 8.1 inches
The air quality index in Charlestown is 7% worse than the national average
The pollution index in Charlestown is 3% better than the national average

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Charlestown 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	27°F	41°F	35°F	2.2"
February	28°F	45°F	37°F	1.4"
March	36°F	54°F	45°F	4.8"
April	46°F	65°F	56°F	1.6"
May	55°F	73°F	65°F	8.1"
June	64°F	82°F	75°F	3.0"
July	70°F	87°F	80°F	0.5"
August	67°F	84°F	76°F	1.1"
September	61°F	78°F	70°F	1.7"
October	50°F	68°F	59°F	7.1"
November	39°F	57°F	48°F	2.9"
December	33°F	47°F	40°F	4.4"

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Charlestown 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	Charlestown	Maryland	National
Air quality index	45	43	42
Pollution index	2,654,190	5,342,367	2,726,193

Charlestown air quality

Measurement	Total
Days measured	365
Days with good air quality	238
Days with moderate air quality	117
Days w/ poor A.Q. for sensitive groups	9
Days with unhealthy air quality	1

Air quality details

Pollutant	Total
Arsenic	0.002%
Benzene	0.030%
Carbon Tetrachloride	0.004%
Lead	0.000%
Mercury	0.005%

Average monthly Charlestown temperature with heat index

Charlestown monthly precipitation with daily maximum

Charlestown monthly snow depth with daily maximum

Charlestown monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Middletown, DE	22,350	42	16.0%
Elkton, MD	15,653	42	16.0%
Newark, DE	33,822	42	16.0%
Townsend, DE	2,546	42	16.0%
Brookside, DE	13,741	42	16.0%
Charlestown, MD	1,530	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Rock Creek, AL	1,530	53	6.0%
Arcadia, IN	1,530	42	16.0%
Fayette, MS	1,530	44	12.0%
Deshler, OH	1,530	39	22.0%
Pepeekeo, HI	1,531	16	68.0%
Charlestown, MD	1,530	45	10.0%

Source: The Charlestown, 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.