Zip 21230 (Baltimore, MD) Climate

21230 Baltimore, MD has a humid subtropical climate with hot and humid summers and cold winters. In the summer months of June to August, temperatures average between 70-85 degrees Fahrenheit with high humidity levels. Winters in 21230 Baltimore, MD are typically chilly with an average temperature of 35-45 degrees Fahrenheit and occasional snowfall. Spring and fall season are generally mild and relatively short. Rainfall is moderate throughout the year.

Baltimore (zip 21230), Maryland gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Baltimore (zip 21230) averages 14 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 Baltimore (zip 21230). The US average is 205 sunny days.

Baltimore (zip 21230) 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 90 degrees
Winter Low: the January low is 29
Rain: averages 42 inches of rain a year
Snow: averages 14 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 21230 zip code is 7.2 (10=best), which means it is less comfortable than most places in Maryland.

7 Summer - 6 Winter

September, May and October are the most pleasant months in the 21230 zip code, while January and February are the least comfortable months.

Climate	Baltimore, Maryland	United States
	41.7 in.	38.1 in.
	14.2 in.	27.8 in.
	112.6 days	106.2 days
	213 days	205 days
	89.6°	85.8°
	28.7°	21.7°
	7.2	7
	4.1	4.3
	3 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 21230 zip code with an average high temperature of 89.6°, which ranks it as one of the hottest places in Maryland. In the 21230 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 21230 zip code are May, September and June.

In the 21230 zip code, there are 42.0 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 21230 zip code with an average of 28.7°. This is one of the warmest places in Maryland.

In the 21230 zip code, there are 63.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Maryland.

In the 21230 zip code, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

The humidity is usually acceptable in the 21230 zip code but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most uncomfortably humid months in the 21230 zip code.

September is the wettest month in the 21230 zip code with 4.0 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 41.7 inches in the 21230 zip code means that it is drier than most places in Maryland.

May is the rainiest month in the 21230 zip code with 10.9 days of rain, and October is the driest month with only 8.1 rainy days. There are 112.6 rainy days annually in the 21230 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 22% chance of a rainy day.

An annual snowfall of 14.2 inches in the 21230 zip code means that it is less snowy than most places in Maryland. January is the snowiest month in the 21230 zip code with 6.6 inches of snow, and 4 months of the year have significant snowfall.

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