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Baltimore city Climate

Baltimore city, Maryland

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec57.6°AVG °F

Avg Annual Temp

57.6°F

Annual Precip

43.7"

Annual Snowfall

Extreme Heat Days

31

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet
3.1"
2.8"
3.9"
3.5"
3.4"
3.4"
4.7"
4.3"
4.5"
3.5"
3.0"
3.7"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

7b

Minimum winter temperature range for plant survival

Growing Degree Days

4,306

Excellent for heat-loving crops

Last spring frost (32°F): 04/02
First fall frost (32°F): 11/21

Seasonal Overview

Comfort ZoneSpring45°65°10.9"Summer75°80°12.4"Fall49°70°11.0"Winter36°40°9.5"20°40°60°80°100°

National Comparison

Warmer than 62% of US counties
Wetter than 55% of US counties
More seasonal variation than 55% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Baltimore city

Climate Verdict

Baltimore city has a mild, with an average annual temperature of 57.6°F, moderately wet with 43.7 inches of annual precipitation, occasional hot days — 30.5 per year above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 35.7°F. summers are warm — July averages 79.7°F. The 44°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.

Regional Context

Baltimore city closely matches the Maryland statewide average temperature of 55.9°F, it is somewhat drier than average for Maryland.

Climate Profile

About Baltimore city Weather

Urban warmth exceeds national median

Baltimore city averages 57.6°F annually, making it warmer than the typical US location. The urban environment often traps heat, contributing to its humid subtropical profile.

Above the Maryland state average

The city's average temperature sits 1.7 degrees above the Maryland state average of 55.9°F. It is one of the warmest spots in the state, particularly during the summer months.

The warmest in the region

Baltimore's July average of 79.7°F is higher than neighboring Anne Arundel or Carroll counties. While annual snowfall data is limited for this station, the city generally stays warmer than its rural neighbors.

Frequent extreme summer heat

The city faces 31 days per year with temperatures at or above 90°F. Winters remain relatively mild compared to western Maryland, with a January average of 35.7°F.

Managing the urban heat island

Reliable air conditioning is a priority for the 31 extreme heat days each year. Residents should also plan for 43.7 inches of rain, which can lead to rapid runoff in paved urban areas.

Frequently Asked Questions

What is the average temperature in Baltimore city?
The average annual temperature in Baltimore city, MD is 57.6°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Baltimore city get?
Baltimore city receives an average of 43.7 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
How hot does Baltimore city get in summer?
The average summer temperature (June-August) in Baltimore city is 77.2°F. The county experiences an average of 31 days per year above 90°F.
How cold are winters in Baltimore city?
The average winter temperature (December-February) in Baltimore city is 38.0°F. January, typically the coldest month, averages 35.7°F.

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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