Climate in Columbia, MD

Columbia, MD has a humid subtropical climate with hot and humid summers and cold winters. Average temperatures range from around 60°F (15°C) in the winter months to around 80°F (27°C) in the summer. Rainfall is generally evenly distributed throughout the year, with an average of 44 inches (112 cm) of precipitation annually. On average, Columbia experiences about 162 sunny days per year, but thunderstorms are relatively common during spring and summer. Snowfall is usually light, and snow accumulations are rarely more than a few inches.

Columbia, Maryland gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Columbia averages 17 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 212 sunny days per year in Columbia. The US average is 205 sunny days.

Columbia gets some kind of precipitation, on average, 114 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.

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Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 24
Rain: averages 45 inches of rain a year
Snow: averages 17 inches of snow a year

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BESTPLACES COMFORT INDEX

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

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

July is the hottest month for Columbia with an average high temperature of 87.9°, which ranks it as warmer than most places in Maryland. In Columbia, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Columbia are September, May and June.

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In Columbia, there are 29.1 days annually when the high temperature is over 90°, which is hotter than most places in Maryland.

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January has the coldest nighttime temperatures for Columbia with an average of 23.9°. This is colder than most places in Maryland.

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In Columbia, there are 99.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maryland.

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In Columbia, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.

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The humidity is usually acceptable in Columbia 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 Columbia.

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May is the wettest month in Columbia with 4.4 inches of rain, and the driest month is February with 3.1 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 45.0 inches in Columbia means that it is wetter than most places in Maryland.

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May is the rainiest month in Columbia with 11.6 days of rain, and October is the driest month with only 8.3 rainy days. There are 113.9 rainy days annually in Columbia, which is about average compared to other places in Maryland. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

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An annual snowfall of 17.3 inches in Columbia means that it is snowier than most places in Maryland. February is the snowiest month in Columbia with 6.2 inches of snow, and 5 months of the year have significant snowfall.

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