Baltimore, MD Climate

Summary Graph

The summary climate graph for Baltimore, MD shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Baltimore, MD.


The warmest month in Baltimore Washington International, Baltimore, Maryland is July with an average high temperature of 88.4°F. The hottest day on record was July 23 2011 when the temperature hit 106.0°F. During January the overnight temperature drops to an average of 25.4°F with the lowest temperature of -7.1°F being recorded on January 17 1982.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

23 Jul 2011106°F
7 Jul 2010105.1°F
20 Aug 1983104°F
17 Jul 1988104°F
19 Jul 2012104°F

The warmest months on average were:

July 201194.6°F
July 201094.5°F
July 201293.7°F
July 198893.1°F
June 201091.9°F

The coldest days on record are:

17 Jan 1982-7.1°F
29 Jan 1963-6.7°F
21 Jan 1985-6.2°F
22 Jan 1984-6°F
19 Jan 1994-5.1°F

The coldest months on average were:

January 197712.5°F
December 198915.5°F
February 197915.6°F
February 197817.6°F
December 196017.8°F


The wettest month by average rainfall in Baltimore, MD is September with an average of 3.8 inches of rain falling on 10 to 11 days.Although in May it typically rains on more days with 3.3 inches falling in 13 to 14 days. The driest month in Baltimore, MD is February with an average of 2.5 inches of rain falling on 8 to 9 days.

Wettest Days

The wettest days on record are:

27 April 19522.2 inches
16 April 19831.7 inches
16 April 19961.7 inches
15 April 20071.6 inches
3 April 20051.6 inches

Wettest Months

The wettest months on record are:

August 195518.4 inches
September 201113.3 inches
September 199911.5 inches
August 201110.4 inches
August 197910 inches

Driest Months

The driest months on record are:

February 19450 inches
March 19450 inches
April 19450 inches
May 19450 inches
June 19450 inches