Climate and monthly weather forecast
The climate of Baltimore
Baltimore,Maryland is situated in the humid subtropical climate zone according to the Köppen climate classification, marked as Cfa. It indicates no dry season and hot summers. Throughout the year, the city experiences moderate climatic variations, with notable weather transitions occurring each season.
The annual average temperatures in Baltimore range from a low of 27.1°F (-2.7°C) inJanuary to a high of 85.3°F (29.6°C) inJuly. Humidity levels stay fairly consistent throughout the year, usually staying between 72% to 75%. Rainfall is a common occurrence all year round in this city, with the highest precipitation, 4.13" (105mm), observed inAugust. The city even receives a small amount of snow (about 2.09" (53mm) in January) and is known for its occasionally harsh winters.
Daylight hours in Baltimore extend between a minimum of 9.8 hours inDecember to a maximum of 14.9 hours inJune. In line with the daylight timings, the sunshine hours vary from 5.2 hours in December up to 10.9 hours in July. Despite the fluctuating daylight hours, the UV index remains constant/year-round, swinging between 2 and 6. In regards to wind conditions, speeds can surge up to 9.1mph (14.6km/h) inMarch and fall to a milder 5.7mph (9.2km/h) from July toSeptember.
The annual average temperatures in Baltimore range from a low of 27.1°F (-2.7°C) inJanuary to a high of 85.3°F (29.6°C) inJuly. Humidity levels stay fairly consistent throughout the year, usually staying between 72% to 75%. Rainfall is a common occurrence all year round in this city, with the highest precipitation, 4.13" (105mm), observed inAugust. The city even receives a small amount of snow (about 2.09" (53mm) in January) and is known for its occasionally harsh winters.
Daylight hours in Baltimore extend between a minimum of 9.8 hours inDecember to a maximum of 14.9 hours inJune. In line with the daylight timings, the sunshine hours vary from 5.2 hours in December up to 10.9 hours in July. Despite the fluctuating daylight hours, the UV index remains constant/year-round, swinging between 2 and 6. In regards to wind conditions, speeds can surge up to 9.1mph (14.6km/h) inMarch and fall to a milder 5.7mph (9.2km/h) from July toSeptember.
The best time to visit Baltimore
Tourists often find the best time to visitBaltimore to be the months ofMay andJune when weather conditions are most favorable. During this time, temperatures average between 63°F (17.2°C) to 80.1°F (26.7°C), offering a comfortable atmosphere for outdoor activities. The moderately high humidity, ranging from 72% to 77%, adds to the pleasant early summer climate. While there is rainfall during these months, it is not excessive as to disrupt plans, with an average of 2.32" (59mm) inApril and 2.76" (70mm) in June.
The worst time to visit Baltimore
Traveling toBaltimore betweenJanuary andMarch is often considered less ideal due to harsh winter conditions. During this period, the city experiences its lowest temperatures, sometimes dropping to as low as 27.1°F (-2.7°C) in January. In addition, these months record the most snowfall with January registering about 2.09" (53mm).
Spring weather in Baltimore
Spring inBaltimore extends fromMarch toMay, with temperatures rising steadily from an average low of 36.3°F (2.4°C) in March to a peak of 55.9°F (13.3°C) by May. Rainfall during this season is significant, with the highest recorded levels of 3.07" (78mm) in May. Additionally, the length of daylight hours also increases in spring, from 12 hours in March to 14.3 hours by May’s end.
Summer weather in Baltimore
June throughAugust marks summer inBaltimore, withJuly often being the hottest month, boasting an average high temperature of 85.3°F (29.6°C). Summers in Baltimore are characterized by higher humidity, peaking at 77%. Rainfall is extensive during this season, escalating to a yearly high of 4.13" (105mm) in August.
Autumn weather in Baltimore
Autumn inBaltimore falls betweenSeptember andNovember, with temperatures during this season ranging from a high of 77°F (25°C) in September to a low of 40.3°F (4.6°C) in November. Rainfall drops significantly during this period, from 2.24" (57mm) in September to approximately 2.09" (53mm) in November.
Winter weather in Baltimore
The winter months inBaltimore -December,January, andFebruary - are usually cold with occasional snowfall. Temperatures during this season fluctuate from a low of 27.1°F (-2.7°C) in January to a higher, but still chilly, 42.4°F (5.8°C) in February. Baltimore's winters also have lower rainfall, with an average of around 1.97" (50mm) in February.
Weather in January
January inBaltimore,Maryland, brings chilly temperatures and the beginning of the year. The coldest month on average, this month generally starts with temperatures ranging from 38.5°F (3.6°C) down to 27.1°F (-2.7°C). A snowfall of 2.09" (53mm) makes this winter period a typical scene with a fresh coat of white powdery substance.Weather in January »
Weather in February
The weather inFebruary still holds onto the chills of Winter inBaltimore, but signs of spring are often in view towards the month's end. Compared toJanuary, the temperature range in February shows a slight increase. With an average high temperature of 42.4°F (5.8°C) and a low of 29.7°F (-1.3°C), February offers a noticeable shift towards warmer conditions.Weather in February »
Weather in March
As the city ofBaltimore steps into the early phase of Spring,March displays a significant difference in temperatures. The smooth transition from winter to spring means the weather varies from day to day, sometimes showcasing the last of winter's chill, other times hinting at spring's warmth.Weather in March »
Weather in April
April inBaltimore begins to experience the full effects of the Spring season. This month brings warmer temperatures, blooming flowers, and a refreshing sense of change. Steeper daytime temperatures become the norm, reaching a high of 63°F (17.2°C) and a low of 46°F (7.8°C).Weather in April »
Weather in May
May inBaltimore is well within Spring and showcases the best it has to offer with beautiful seasonal flora and warmer temperatures. May brings the first taste of Summer, leading to an increase in outdoor activities—parks, trails, and outdoor adventures are bustling with life.Weather in May »
Weather in June
The month ofJune inBaltimore officially welcomes Summer with extended daylight hours and increasing temperatures. Locals and visitors alike take full advantage of the increased sunshine and longer days during this month. With a leap to more summer-friendly temperatures, June holds an average high of 80.1°F (26.7°C).Weather in June »
Weather in July
July inBaltimore presents itself as the heart of Summer, offering the pinnacle of heat for the whole year. This month, Baltimore basks in the peak of Summer's high temperature of 85.3°F (29.6°C). Days are long, and sun exposures are high making it the perfect time for beach getaways, water activities, and festivals.Weather in July »
Weather in August
August inBaltimore is the month of high Summer where temperatures remain consistently warm, although slightly lower thanJuly. The heat lingers in the air even as the gradual transition into autumn begins. Despite having a high temperature of 83.5°F (28.6°C), August sees a slight uptick in rainfall with 4.13" (105mm) on average.Weather in August »
Weather in September
September brings about a significant seasonal shift inBaltimore as it transitions from the Summer's heat to the cooler temperatures of Autumn. The humidity is less oppressive, and a touch of Fall is palpable in the cool mornings and evenings.Weather in September »
Weather in October
October inBaltimore presents the Autumn season in its full glory. This month is characterized by cool temperatures, colorful foliage, and a crispness in the air. By this time, the summer heat has entirely faded with average temperatures dropping to a high of 65.3°F (18.5°C).Weather in October »
Weather in November
November leadsBaltimore further into the Fall season, bringing cooler weather and decreasing daylight hours. Outdoor activities are still quite enjoyable, albeit with the addition of warmer clothing. Temperatures decrease considerably and start to register a high of 53.2°F (11.8°C).Weather in November »
Weather in December
December inBaltimore represents the arrival of Winter and the end of the year. The city gets decked up with holiday decorations and can experience some snowfall towards the late December period. The temperatures are colder with an average high of 44.8°F (7.1°C), pointing towards the upcoming depth of Winter.Weather in December »
Frequently asked questions
What month is the coldest?
Baltimore'sJanuary weather reaches an averagehigh of38.5°F (3.6°C) and an averagelow of27.1°F (-2.7°C), making it thecoldest month.
What is the driest month?
The month with theleast rainfall isJanuary, when the rain falls for8.7 days and typically collects1.85" (47mm) ofprecipitation.
How many days does it rain?
Throughout the year, there are158.5 rainfall days, and30.75" (781mm) ofprecipitation is accumulated.
When does it snow in Baltimore?
Monthswith snowfall areJanuary throughMarch,November andDecember.
What is the snowiest month?
The month with themost snowfall isJanuary, when snow falls for4.2 days and typically aggregates up to2.09" (53mm) ofsnow.
How many days does it snow?
Throughout the year, there are12.8 snowfall days, and6.06" (154mm) ofsnow is accumulated.
What are the months with the lowest UV index?
January,February,November andDecember, with an average maximumUV index of2, are months with thelowest UV index in Baltimore.
What is the month with the coldest ocean?
February is the month with thecoldest seawater in Baltimore, with an average ocean temperature of44.4°F (6.9°C).
What is the month with the least sunshine?
The month with theleast sunshine isFebruary, with an average of5h ofsunshine.
When is Daylight Saving Time (DST)?
OnSunday, March 10. 2024, at 2:00 am, Daylight Saving Timestarts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month in Baltimore?
April,July andNovember, with an averagerelative humidity of72%, are theleast humid months in Baltimore, Maryland.
When it does not snow?
April throughOctober are monthswithout snowfall.
What is the most humid month?
May is themost humid month, with an averagerelative humidity of77%.
When is the highest UV index?
May throughAugust, with an average maximumUV index of6, are months with thehighest UV index.
When are the longest days?
The month with thelongest days isJune, with an average of14h and54min ofdaylight.
What part of the year is the hottest?
Thewarmest period tends to beJuly, when average temperatures fluctuate between ahigh of85.3°F (29.6°C) and alow of69.6°F (20.9°C).
What month has the most sunshine?
With an average of10.9h ofsunshine,July has themost sunshine of the year.
What is the wettest month?
August is the month with themost rainfall in Baltimore. Rain falls for16.8 days and accumulates4.13" (105mm) ofprecipitation.
What is the month with the warmest ocean?
The month with thewarmest seawater isAugust, with an average ocean temperature of77.5°F (25.3°C).
What is the month with the shortest days?
The month with theshortest days isDecember, with an average of9h and30min ofdaylight.
Baltimore, MD
The warmest month (with the highest average high temperature) isJuly (85.3°F).
The month with the lowest average high temperature isJanuary (38.5°F).
The month with the highest average low temperature isJuly (69.6°F).
The coldest month (with the lowest average low temperature) isJanuary (27.1°F).
Baltimore, MD
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure isNovember (30.14"Hg).
The month with the lowest atmospheric pressure isJune (29.94"Hg).
Baltimore, MD
The windiest month (with the highest average wind speed) isMarch (9.1mph).
The calmest months (with the lowest average wind speed) areJuly andAugust (5.7mph).
Baltimore, MD
The month with the highest relative humidity isMay (77%).
The months with the lowest relative humidity areApril,July andNovember (72%).
Baltimore, MD
The wettest month (with the highest rainfall) isAugust (4.13").
The driest month (with the least rainfall) isJanuary (1.85").
Baltimore, MD
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
18.1 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
10.1 days
The month with the highest number of rainy days isMay (18.1 days).
The month with the least rainy days isNovember (8.4 days).
Baltimore, MD
The month with the highest snowfall isJanuary (2.09").
The months with the least snowfall areApril,May,June,July,August,September andOctober (0").
Baltimore, MD
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
3.7 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
The month with the highest number of snowfall days isJanuary (4.2 days).
The months with the least snowfall days areMay,June,July,August,September andOctober (0 days).
Baltimore, MD
The best month for swimming (with the highest average sea temperature) isAugust (77.5°F).
The coldest month (with the lowest average sea temperature) isFebruary (44.5°F).
Baltimore, MD
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days isJune (Average daylight: 14h and 54min).
The month with the shortest days isDecember (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine isJuly (Average sunshine: 10h and 54min).
The month with the least sunshine isFebruary (Average sunshine: 5h and 0min).
Baltimore, MD
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
12.1 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days isNovember (19.9 days).
The month with the least sunshine days isMay (10.3 days).
Baltimore, MD
The months with the highest UV index areMay,June,July andAugust (UV index 6).
The months with the lowest UV index areJanuary,February,November andDecember (UV index 2).
Baltimore, MD
The month with the most cloud cover isMarch (Cloud cover 46).
The month with the least cloud cover isJuly (Cloud cover 29).
Baltimore, MD
The months with the highest visibility areJanuary,February,March,April,May,June,July,August,September,October,November andDecember (6mi).
The months with the lowest visibility areJanuary,February,March,April,May,June,July,August,September,October,November andDecember (6mi).
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