Baltimore, MD Weather by Month and Climate Averages

Baltimore, MD gets 43.7 in of precipitation a year over about 118 rainy days. July is the warmest month (average high 90°F) and January the coldest (average low 30°F).

Baltimore climate at a glance

Humid subtropical climate

Baltimore, MD has hot summers and chilly winters. Daytime highs range from about 43°F in January to 90°F in July. July is usually the wettest month. The most comfortable time to visit is typically April to May and October, when daytime highs sit near 70°F.

How much rain does Baltimore get?

Baltimore gets 43.7 in of precipitation in an average year, spread over about 118 days with measurable rain. That is more rainy days than 76% of the US.

July is the wettest month, with 4.7 in. February is the driest, with 2.8 in. May has the most rainy days, about 11.

The longest dry spell in the last five years lasted 38 days, to November 9, 2024.

See where Baltimore ranks: rainiest cities in the US, US cities with the most rainy days.

Baltimore weather by month

Baltimore weather in January

In January, Baltimore averages a high of 43°F and a low of 30°F. It gets 3.1 in of precipitation over about 10 rainy days. The sun is out about 40% of daylight hours. The January record high is 80°F (2024) and the record low is 4°F (2014).

Baltimore weather in February

In February, Baltimore averages a high of 46°F and a low of 32°F. It gets 2.8 in of precipitation over about 10 rainy days. The sun is out about 40% of daylight hours. The February record high is 83°F (2018) and the record low is 3°F (2015).

Baltimore weather in March

In March, Baltimore averages a high of 55°F and a low of 39°F. It gets 3.9 in of precipitation over about 11 rainy days. The sun is out about 45% of daylight hours. The March record high is 87°F (2025) and the record low is 14°F (2009).

Baltimore weather in April

In April, Baltimore averages a high of 67°F and a low of 49°F. It gets 3.5 in of precipitation over about 11 rainy days. The sun is out about 43% of daylight hours. The April record high is 96°F (2013) and the record low is 30°F (2016). April is one of the most comfortable months to visit.

Baltimore weather in May

In May, Baltimore averages a high of 76°F and a low of 59°F. It gets 3.4 in of precipitation over about 11 rainy days. The sun is out about 38% of daylight hours. The May record high is 99°F (2026) and the record low is 37°F (2020). May is one of the most comfortable months to visit.

Baltimore weather in June

In June, Baltimore averages a high of 85°F and a low of 69°F. It gets 3.4 in of precipitation over about 10 rainy days. The sun is out about 44% of daylight hours. The June record high is 106°F (2012) and the record low is 52°F (2003).

Baltimore weather in July

In July, Baltimore averages a high of 90°F and a low of 73°F. It gets 4.7 in of precipitation over about 11 rainy days. The sun is out about 45% of daylight hours. The July record high is 108°F (2012) and the record low is 60°F (2001).

Baltimore weather in August

In August, Baltimore averages a high of 87°F and a low of 72°F. It gets 4.3 in of precipitation over about 10 rainy days. The sun is out about 44% of daylight hours. The August record high is 106°F (2007) and the record low is 53°F (2004).

Baltimore weather in September

In September, Baltimore averages a high of 81°F and a low of 65°F. It gets 4.5 in of precipitation over about 9 rainy days. The sun is out about 47% of daylight hours. The September record high is 100°F (2023) and the record low is 48°F (2000).

Baltimore weather in October

In October, Baltimore averages a high of 69°F and a low of 54°F. It gets 3.5 in of precipitation over about 9 rainy days. The sun is out about 52% of daylight hours. The October record high is 95°F (2019) and the record low is 37°F (2006). October is one of the most comfortable months to visit.

Baltimore weather in November

In November, Baltimore averages a high of 57°F and a low of 43°F. It gets 3.0 in of precipitation over about 8 rainy days. The sun is out about 56% of daylight hours. The November record high is 83°F (2024) and the record low is 21°F (2014).

Baltimore weather in December

In December, Baltimore averages a high of 48°F and a low of 35°F. It gets 3.7 in of precipitation over about 10 rainy days. The sun is out about 43% of daylight hours. The December record high is 78°F (2006) and the record low is 8°F (2022).

Sunshine, humidity and wind in Baltimore

November is the sunniest month in Baltimore, with sunshine about 56% of daylight hours. May is the cloudiest, at 38%. Over the year the sun shines about 45% of daylight hours. Baltimore is cloudier than 61% of the US.

Humidity peaks in August at 73% and is lowest in March at 61%.

Baltimore has about 42 days a year above 90°F. Baltimore is hotter than 63% of the US.

See where Baltimore ranks: sunniest cities in the US, cloudiest cities in the US, hottest cities in the US.

First and last freeze in Baltimore

The first fall freeze in Baltimore typically comes around November 28, and the last spring freeze around March 19. That leaves a frost-free growing season of about 254 days.

Baltimore weather records

The hottest temperature on record at the Baltimore station is 108°F, on July 22, 2011. The coldest is 3°F, on February 20, 2015.

The wettest day on record brought 6.1 in of rain, on October 29, 2012.

The best time to visit Baltimore

The most comfortable time to visit is typically April to May and October, when daytime highs sit near 70°F.

Winter (December–February) is chilly, with average highs around 46°F and lows near 33°F.

Spring (March–May) is mild, with average highs around 66°F and lows near 49°F.

Summer (June–August) is hot, with average highs around 87°F and lows near 71°F. It can feel humid.

Autumn (September–November) is warm, with average highs around 69°F and lows near 54°F.

Monthly climate

MonthPrecipRain daysHumiditySunshineSea tempRecord highRecord low
January3.1 in1067%40%39°80°
February2.8 in1065%40%39°83°
March3.9 in1161%45%46°87°14°
April3.5 in1162%43%55°96°30°
May3.4 in1167%38%64°99°37°
June3.4 in1067%44%75°106°52°
July4.7 in1171%45%82°108°60°
August4.3 in1073%44%81°106°53°
September4.5 in972%47%75°100°48°
October3.5 in972%52%65°95°37°
November3.0 in866%56%54°83°21°
December3.7 in1068%43%43°78°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Baltimore climate questions

How much rain does Baltimore get?

Baltimore gets 43.7 in of precipitation in an average year, over about 118 rainy days.

What is the wettest month in Baltimore?

July is the wettest month in Baltimore, with 4.7 in. February is the driest, with 2.8 in.

How many rainy days does Baltimore have a year?

Baltimore has about 118 days with measurable rain in an average year. May has the most, about 11.

What is the hottest month in Baltimore?

July is the warmest month in Baltimore, with an average high of 90°F.

What is the coldest month in Baltimore?

January is the coldest month in Baltimore, with an average low of 30°F.

What is the record high temperature in Baltimore?

The record high at the Baltimore station is 108°F, set on July 22, 2011. The record low is 3°F, on February 20, 2015.

What is the sunniest month in Baltimore?

November is the sunniest month in Baltimore, with sunshine about 56% of daylight hours. May is the cloudiest.

When is the first frost in Baltimore?

The first fall freeze in Baltimore typically comes around November 28. The last spring freeze is around March 19.

What is the best time to visit Baltimore?

The most comfortable time to visit is typically April to May and October, when daytime highs sit near 70°F.

Source: NOAA GHCN-Daily station MARYLAND SCI CTR (1 km away).

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Normals from NOAA GHCN-Daily station MARYLAND SCI CTR.