Baltimore, MD

Climate overview — based on NOAA 1991-2020 normals from MD SCI CTR BALTIMORE, MD US.

Cfa Humid subtropical climate 8b USDA hardiness Zone 8b

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Baltimore has an annual average temperature of 59.1°F with about 43.7 inches of precipitation per year. The warmest month is July (average high 90.1°F), and the coldest is January (average low 30.0°F). July is typically the wettest month (4.71 in) and February the driest (2.75 in).

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
44.6°F
warmest to coldest month
Heating need
3,666
Cooling need
1,551

Best time to visit Baltimore

Full guide →

Climate change signal

All-time records →

133 of 366 (36.3%) of Baltimore's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1990s
12
2000s
129
2010s
154
2020s
71

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 43.7°F 30.0°F 36.9°F 3.07 in 10
February 46.8°F 31.9°F 39.4°F 2.75 in 10
March 55.2°F 38.7°F 46.9°F 3.93 in 11
April 66.8°F 48.2°F 57.5°F 3.55 in 11
May 75.9°F 58.0°F 67.0°F 3.39 in 11
June 85.4°F 67.7°F 76.6°F 3.36 in 11
July 90.1°F 72.9°F 81.5°F 4.71 in 11
August 87.3°F 71.0°F 79.1°F 4.35 in 10
September 80.4°F 64.5°F 72.5°F 4.49 in 9
October 68.8°F 52.6°F 60.7°F 3.49 in 9
November 57.6°F 42.6°F 50.1°F 2.98 in 8
December 48.0°F 34.6°F 41.3°F 3.66 in 10

Climate twins of Baltimore

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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