Zip 20009 (Washington, DC) Climate

In 2009, Washington, DC had an average temperature of 64°F and around 45 inches of precipitation throughout the year. The summers were generally hot and humid with temperatures reaching up to the mid-90s on most days. The winters in DC were mild, with temperatures rarely dipping below freezing and snowfall usually being light. The city also experienced a variety of weather events such as thunderstorms, heavy winds, and occasional flooding due to nearby rivers and lakes. Overall the climate in DC was very comfortable and pleasant for most people living there.

Washington (zip 20009), District of Columbia gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Washington (zip 20009) averages 14 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in Washington (zip 20009). The US average is 205 sunny days.

Washington (zip 20009) gets some kind of precipitation, on average, 115 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 89 degrees
Winter Low: the January low is 26
Rain: averages 44 inches of rain a year
Snow: averages 14 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 20009 zip code is 7.3 (10=best), which means it is one of the most pleasant places in the District of Columbia.

7.6 Summer - 5.9 Winter

September, May and June are the most pleasant months in the 20009 zip code, while January and February are the least comfortable months.

Climate	Washington, District of Columbia	United States
	44.3 in.	38.1 in.
	13.7 in.	27.8 in.
	114.5 days	106.2 days
	202 days	205 days
	88.9°	85.8°
	26.1°	21.7°
	7.3	7
	5	4.3
	140 ft.	2443 ft.

Climate

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.

July is the hottest month for the 20009 zip code with an average high temperature of 88.9°, which ranks it as one of the hottest places in the District of Columbia. In the 20009 zip code, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 20009 zip code are May, September and June.

In the 20009 zip code, there are 37.9 days annually when the high temperature is over 90°, which is one of the hottest places in the District of Columbia.

January has the coldest nighttime temperatures for the 20009 zip code with an average of 26.1°. This is one of the coldest places in the District of Columbia.

In the 20009 zip code, there are 83.8 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in the District of Columbia.

In the 20009 zip code, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in the District of Columbia.

The humidity can be uncomfortably heavy or close in the 20009 zip code during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in the 20009 zip code.

July is the wettest month in the 20009 zip code with 4.6 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 44.3 inches in the 20009 zip code means that it is one of the wettest places in the District of Columbia.

May is the rainiest month in the 20009 zip code with 11.5 days of rain, and October is the driest month with only 8.2 rainy days. There are 114.5 rainy days annually in the 20009 zip code, which is one of the rainiest places in the District of Columbia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 13.7 inches in the 20009 zip code means that it is one of the snowiest places in the District of Columbia. January is the snowiest month in the 20009 zip code with 5.4 inches of snow, and 5 months of the year have significant snowfall.