Zip 21045 (Columbia, MD) 

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Weather in Zip 21045 (Columbia, MD)

The most pleasant months of the year for the 21045 zip code are September, May and June. In the 21045 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 21045 zip code with an average high temperature of 88.0°, which ranks it as warmer than most places in Maryland. February is the snowiest month in the 21045 zip code with 6.1 inches of snow, and 5 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.


Today's Weather - Columbia, MD

5 AM PST

Cloudy

33°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayCloudy41° / 30°NW 5 to 9 mph
WednesdayChance Light Snow38° / 26°SE 6 mph
ThursdayMostly Cloudy41° / 31°W 6 mph
FridaySlight Chance Light Rain51° / 43°S 6 mph
SaturdayChance Light Rain68° / 46°S 8 to 17 mph
SundayLight Rain Likely59° / 36°NW 7 to 12 mph
MondayChance Light Rain50° / 36°N 6 to 9 mph

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


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Columbia (zip 21045) area is 8.2 (10=best), which means it is more comfortable than most places in Maryland.

8.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January43° 24°
February46° 26°
March55° 33°
April67° 42°
May76° 52°
June84° 61°
July88° 66°
August86° 64°
September79° 57°
October68° 45°
November57° 36°
December46° 28°
Hot, Freezing, Rainy, Snowy Days: Columbia
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02493
February02292
March015111
April04110
May10120
June6090
July120100
August8080
September2090
October0380
November01190
December021101

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.


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Columbia (zip 21045)


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