Zip 20816 (Bethesda, MD) Climate

Bethesda, MD has a humid subtropical climate with hot and humid summers, and mild winters with occasional snowfall. The average high temperature during the summer months is around 85°F (29°C) and the average low temperature in winter is around 30°F (-1°C). Average annual precipitation is 44 inches (112 cm) and precipitation is evenly distributed throughout the year. Summers are generally sunny, but can be accompanied by frequent thunderstorms. Winters are usually mild, although there can be periods of cold weather with some snowfall.

Bethesda (zip 20816), Maryland gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Bethesda (zip 20816) averages 16 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 Bethesda (zip 20816). The US average is 205 sunny days.

Bethesda (zip 20816) gets some kind of precipitation, on average, 113 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 88 degrees
Winter Low: the January low is 25
Rain: averages 44 inches of rain a year
Snow: averages 16 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 20816 zip code is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

7.8 Summer - 5.8 Winter

September, May and June are the most pleasant months in the 20816 zip code, while January and February are the least comfortable months.

Climate	Bethesda, Maryland	United States
	43.6 in.	38.1 in.
	15.6 in.	27.8 in.
	112.7 days	106.2 days
	202 days	205 days
	88.3°	85.8°
	25.1°	21.7°
	7.3	7
	4.1	4.3
	251 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 20816 zip code with an average high temperature of 88.3°, which ranks it as warmer than most places in Maryland. In the 20816 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 20816 zip code are September, May and June.

In the 20816 zip code, there are 32.7 days annually when the high temperature is over 90°, which is hotter than most places in Maryland.

January has the coldest nighttime temperatures for the 20816 zip code with an average of 25.1°. This is about average compared to other places in Maryland.

In the 20816 zip code, there are 89.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Maryland.

In the 20816 zip code, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.

The humidity can be uncomfortably heavy or close in the 20816 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 20816 zip code.

July is the wettest month in the 20816 zip code with 4.4 inches of rain, and the driest month is January 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 43.6 inches in the 20816 zip code means that it is about average compared to other places in Maryland.

May is the rainiest month in the 20816 zip code with 11.3 days of rain, and October is the driest month with only 8.3 rainy days. There are 112.7 rainy days annually in the 20816 zip code, which is about average compared to other places in Maryland. 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 15.6 inches in the 20816 zip code means that it is about average compared to other places in Maryland. January is the snowiest month in the 20816 zip code with 6.1 inches of snow, and 5 months of the year have significant snowfall.

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