Charlestown, Maryland 

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Weather in Charlestown, Maryland

The most pleasant months of the year for Charlestown are September, May and June. In Charlestown, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Charlestown with an average high temperature of 87.7°, which ranks it as warmer than most places in Maryland. February is the snowiest month in Charlestown with 6.2 inches of snow, and 4 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.


Today's Weather - Charlestown, MD

9 AM PST

Partly Sunny

49°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonPartly Sunny54° / 36°N 10 mph
ThursdaySunny57° / 41°NW 15 to 20 mph
FridayPartly Sunny58° / 43°N 10 to 15 mph
SaturdayPartly Sunny58° / 42°NE 0 to 5 mph
SundayPartly Sunny then Slight Chance Rain Showers62° / 44°S 5 mph
MondayMostly Sunny67° / 48°W 5 mph
TuesdayChance Rain Showers67° / 49°NE 5 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 23
Rain: averages 46 inches of rain a year
Snow: averages 15 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Charlestown area is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

7.3 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January41° 23°
February45° 25°
March53° 32°
April65° 42°
May74° 52°
June83° 62°
July88° 67°
August86° 65°
September79° 57°
October67° 45°
November57° 36°
December45° 28°
Hot, Freezing, Rainy, Snowy Days: Charlestown
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January026103
February02292
March016111
April03110
May10110
June50100
July100100
August7090
September2080
October0280
November01190
December022101

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.


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MAPS OF CHARLESTOWN, MARYLAND
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ZIP CODES IN CHARLESTOWN, MARYLAND
21914

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