What is the weather like in Baltimore throughout the year?

Baltimore’s weather is four-season: hot, humid summers; chilly winters with some snow; mild, changeable spring and fall. Summer highs often reach the 80s–90s °F, while winter highs are usually in the 30s–40s °F. You should expect humidity, occasional coastal storms, and big swings between seasons in Baltimore weather, climate & time patterns.

How Baltimore’s Weather, Climate & Time Typically Work

Baltimore sits in the Mid-Atlantic, so you get a mix of coastal and inland weather. That means:

• Four distinct seasons
• Noticeable humidity most of the year
• Occasional nor’easters and tropical remnants
• Rapid temperature swings, especially in spring and fall

Baltimore is in the Eastern Time Zone (ET), using Eastern Standard Time (EST) in fall/winter and Eastern Daylight Time (EDT) in spring/summer. Clocks change twice a year, in line with U.S. daylight saving rules.

Season-by-Season: What to Expect from Baltimore Weather

Winter (December–February)

• Temperatures: Often cold, with daytime highs commonly in the 30s–40s °F and overnight lows below freezing.
• Precipitation: Mix of rain, snow, sleet, and freezing rain. Some winters are fairly mild; others bring several significant snow or ice events.
• Conditions:
  • Occasional coastal storms (nor’easters) can bring heavy snow or cold rain.
  • Sidewalks and side streets can stay icy after storms.
• What to pack:
  • Heavy coat, hat, gloves, waterproof boots with good traction.
  • Layers (sweaters, thermals) because indoor heating can make interiors quite warm.

Spring (March–May)

• Temperatures: Transition from chilly to mild; mornings can be cold even when afternoons are warm.
• Precipitation: Frequent rain showers and some thunderstorms; March can still see a late-season snow in some years.
• Conditions:
  • Highly variable — you might see 30s °F and 70s °F in the same week.
  • Tree pollen and other allergens increase, which affects many visitors and residents.
• What to pack:
  • Layers: light jacket, sweater, T-shirts.
  • Waterproof shoes and a compact umbrella or rain jacket.

Summer (June–August)

• Temperatures: Often hot and humid, with many days in the 80s–90s °F.
• Humidity: High — humidity is a defining feature of Baltimore weather, climate & time in summer. Heat index can feel much hotter than the thermometer reading.
• Precipitation:
  • Pop-up thunderstorms, sometimes severe, mainly in afternoons and evenings.
  • Short, heavy downpours can cause localized street flooding.
• Conditions:
  • Heat advisories on the hottest, muggiest days.
  • Air quality alerts occasionally, especially for sensitive groups.
• What to pack:
  • Lightweight, breathable clothing; sun protection (hat, sunglasses, sunscreen).
  • Refillable water bottle; light rain layer for storms.

Fall (September–November)

• Temperatures: Often one of the most comfortable seasons; warm in early fall, turning cool by November.
• Precipitation: Regular rain; remnants of tropical systems can affect early fall.
• Conditions:
  • Lower humidity than summer, especially by October.
  • Foliage color usually peaks in late October–early November.
• What to pack:
  • Light layers: short sleeves for early fall, medium-weight jacket or sweater for evenings.
  • Waterproof outer layer for rainy days.

Typical Baltimore Weather Patterns at a Glance

Use this table as a quick planning guide. Values are approximate and meant for general planning, not precise forecasts.

Time Zone: What Time Is It in Baltimore?

Baltimore follows the same Weather, Climate & Time rules as the rest of the Eastern U.S.:

• Time zone: Eastern Time (ET)
• Standard time: Eastern Standard Time (EST), usually early November to mid-March.
• Daylight time: Eastern Daylight Time (EDT), usually mid-March to early November.
• UTC offset:
  • EST: UTC−5
  • EDT: UTC−4

If you are traveling from overseas or another U.S. time zone, confirm the current offset using a reliable world clock or your phone’s automatic time setting, especially near the daylight saving change dates.

How to Check Current Baltimore Weather and Forecasts

Because conditions can change quickly, especially with storms and heat waves, you should always check a current forecast:

1. Use a trusted weather service or app.
2. Search specifically for “Baltimore, Maryland” to avoid confusion with other cities.
3. Look at:
   • Hourly forecast (for outdoor plans or events)
   • 7–10 day forecast (for trip packing)
   • Any alerts or advisories (heat, storms, air quality, coastal flooding)

For live, street-level conditions (e.g., whether sidewalks are icy or if a storm is impacting visibility), local TV and radio stations and Maryland’s transportation or emergency management agencies provide more detailed Weather, Climate & Time information.

Weather-Related Considerations for Visitors and Residents

Heat and humidity

• In summer, combine heat and humidity when planning outdoor activity.
• Schedule strenuous activities (running, hiking, long walks) for early morning or evening.
• Stay hydrated; use shade and air conditioning when possible.

Snow, ice, and winter storms

• Road and sidewalk conditions can vary a lot by neighborhood and street.
• After storms, side streets and hills may stay slick longer than main roads.
• Public transit may run on modified schedules; check agency sites or apps for service changes.

Thunderstorms and severe weather

• Thunderstorms are common in warm seasons and can form quickly.
• Severe storms can bring:
  • Strong winds
  • Heavy rain and localized flooding
  • Hail or, more rarely, tornado warnings
• If your phone is set to receive emergency alerts, pay attention to warnings.

Coastal and tropical systems

• Baltimore can be affected by remnants of hurricanes, tropical storms, or nor’easters.
• Impacts usually include heavy rain, strong winds, and tidal or coastal flooding more than direct hurricane-force conditions.
• For major systems, monitor updates from the National Weather Service and local emergency management.

Packing Tips by Season

To make Baltimore weather, climate & time less of a surprise, plan your packing with flexibility:

• Always bring at least one waterproof outer layer.
• Prioritize layers over one heavy piece; indoor temperatures are often well-heated or air-conditioned.
• Comfortable walking shoes are essential year-round; consider waterproof or water-resistant options in winter and spring.
• If you’re sensitive to pollen or air quality, bring any medications or masks you rely on at home.

Related Questions

What is the best time of year to visit Baltimore for comfortable weather?

Many people prefer late April through early June and late September through October, when temperatures are generally mild and humidity is lower. You still need layers and rain protection, but extreme heat and deep cold are less common.

Does Baltimore get a lot of snow?

Baltimore usually gets some snow each winter, but totals vary widely by year. Some winters bring several plowable storms, while others are relatively light with more rain and mixed precipitation than deep snow.

How does daylight saving time affect Baltimore?

In spring, clocks “spring forward” one hour, leading to darker early mornings but more evening daylight. In fall, clocks “fall back” one hour, making evenings darker earlier. This shift affects how much daylight you have for commuting, school, and outdoor activities.