National Harbor, Maryland 

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Weather in National Harbor, Maryland

The most pleasant months of the year for National Harbor are September, May and June. In National Harbor, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for National Harbor with an average high temperature of 88.3°, which ranks it as warmer than most places in Maryland. January is the snowiest month in National Harbor with 5.6 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 - National Harbor, MD

5 PM PST

Partly Cloudy

57°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightPartly Cloudy46° / 63°N 8 to 15 mph
Saturday NightMostly Cloudy46° / 65°SE 3 mph
Sunday NightSlight Chance Rain Showers49° / 70°W 3 mph
Monday NightSlight Chance Rain Showers52° / 74°S 3 mph
Tuesday NightChance Rain Showers54° / 74°S 3 mph
Wednesday NightChance Rain Showers then Partly Cloudy52° / 69°NW 3 to 7 mph
Thursday NightSlight Chance Rain Showers then Partly Cloudy43° / 62°NW 13 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 27
Rain: averages 43 inches of rain a year
Snow: averages 14 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the National Harbor 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
January43° 27°
February47° 29°
March56° 36°
April68° 46°
May76° 55°
June85° 65°
July88° 69°
August87° 68°
September80° 61°
October69° 48°
November58° 39°
December47° 30°
Hot, Freezing, Rainy, Snowy Days: National Harbor
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January022103
February01892
March010101
April01110
May10120
June70110
July120110
August9090
September3090
October0180
November0690
December018101

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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