Zip 21220 (Middle River, MD) Climate

The climate in 21220 Middle River, MD is generally mild throughout the year. The summers are hot and humid, with temperatures usually ranging from 70 to 90°F (21 to 32°C). Winters are cold but not extreme, with the average temperature dropping down to around 40°F (4°C). Rainfall is abundant throughout the year, especially during spring and summer months, making it an ideal environment for lush vegetation. The area experiences an average of 220 days of sunshine each year.

Middle River (zip 21220), Maryland gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Middle River (zip 21220) averages 15 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 213 sunny days per year in Middle River (zip 21220). The US average is 205 sunny days.

Middle River (zip 21220) gets some kind of precipitation, on average, 111 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 29
Rain: averages 43 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 21220 zip code is 7.1 (10=best), which means it is less comfortable than most places in Maryland.

6.6 Summer - 6 Winter

May, September and October are the most pleasant months in the 21220 zip code, while January and February are the least comfortable months.

Climate	Middle River, Maryland	United States
	Unlock	38.1 in.
	15.0 in.	Unlock
	Unlock	106.2 days
	213 days	Unlock
	89.2°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	34 ft.	Unlock

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 21220 zip code with an average high temperature of 89.2°, which ranks it as one of the hottest places in Maryland. In the 21220 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 21220 zip code are September, May and June.

In the 21220 zip code, there are 38.4 days annually when the high temperature is over 90°, which is one of the hottest places in Maryland.

January has the coldest nighttime temperatures for the 21220 zip code with an average of 29.0°. This is one of the warmest places in Maryland.

In the 21220 zip code, there are 61.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Maryland.

In the 21220 zip code, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

Humidity in the 21220 zip code can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are August, July and June. The humid season runs from June-September and the most comfortable months are October-May.

September is the wettest month in the 21220 zip code with 4.1 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 42.6 inches in the 21220 zip code means that it is drier than most places in Maryland.

May is the rainiest month in the 21220 zip code with 10.5 days of rain, and October is the driest month with only 7.9 rainy days. There are 110.5 rainy days annually in the 21220 zip code, which is less rainy than most places in Maryland. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 15.0 inches in the 21220 zip code means that it is about average compared to other places in Maryland. January is the snowiest month in the 21220 zip code with 6.3 inches of snow, and 4 months of the year have significant snowfall.

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