Climate averages 1991–2020

Columbia (Maryland), United States weather
in April.

A mild, wet month: the 7th warmest and the 4th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 17.1°C Daytime mean, April
Average low 7.3°C Night-time mean, April
Rainfall 90 mm 10 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Columbia · average highYear overview

April is a mild month in Columbia (Maryland), United States: daytime highs average 17.1°C and nights cool to about 7.3°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 90 mm of rain on roughly 10 days, which makes April a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 12 min on an average April day.

The nearest other city in this atlas is Baltimore (20 km away). In April its highs average 17.2°C, about as warm as Columbia (Maryland), United States, with 97 mm of rain.

Among the 498 cities listed in the United States, Columbia (Maryland), United States ranks 314th of 498 for the warmest April highs and joint 272nd of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Columbia (Maryland), United States is 2.2°C cooler than that mean.

From April to May, average highs rise by 4.9°C to 22.1°C, and monthly rainfall rises from 90 mm to 97 mm.

The annual picture

April in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Columbia (Maryland), United States climate table

1991–2020
Monthly climate averages for Columbia (Maryland), United States, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 4.6°C-2.7°C-2.7°C808.59.710 h
February 6.3°C-2.1°C-2.1°C748.510.711 h
March 10.8°C1.6°C1.6°C10210.311.912 h
April, selected 17.1°C7.3°C7.3°C9010.213.213 h
May 22.1°C12.9°C12.9°C9711.314.314 h
June 26.9°C18.1°C18.1°C9511.614.915 h
July 29.5°C20.9°C20.9°C10812.114.615 h
August 28.4°C20.2°C20.2°C9510.813.714 h
September 24.6°C16.6°C16.6°C1169.112.512 h
October 18.3°C10.3°C10.3°C918.011.211 h
November 12.1°C4.5°C4.5°C767.610.110 h
December 6.9°C-0.1°C-0.1°C949.09.59 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

April in nearby cities

Distance from Columbia

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Columbia) is explained once on the Columbia (Maryland), United States year overview and on the Sources, method and limits page.