United States Monthly Climate

Regional Climate Overview

The United States' climate can be broadly categorized into several distinct regions:

Northeast (Including NYC, Boston)

• Four distinct seasons
• Hot summers and cold winters
• Regular precipitation throughout the year
• Beautiful fall foliage
• Significant snowfall in winter

Southeast (Including Orlando, Miami)

• Subtropical climate
• Hot, humid summers
• Mild winters
• Frequent afternoon thunderstorms
• Hurricane season from June to November

West Coast (Including San Francisco, Los Angeles, San Diego)

• Mediterranean climate
• Mild temperatures year-round
• Dry summers and wet winters
• Coastal fog influence
• Limited temperature extremes

Midwest (Including Chicago)

• Continental climate
• Extreme temperature variations
• Hot summers and very cold winters
• Regular precipitation
• Tornado season in spring

Southwest (Including Las Vegas)

• Desert climate
• Very hot summers
• Mild winters
• Low precipitation
• Large daily temperature variations

Mid-Atlantic (Including Washington DC)

• Varied climate
• Four distinct seasons
• Hot, humid summers
• Cold winters with snow
• Spring cherry blossoms

Featured American Cities

Explore detailed weather information for some of the United States' most popular destinations:

New York

Northeast metropolis with four distinct seasons

San Francisco

Coastal city with mild Mediterranean climate

Miami

Tropical paradise with warm weather year-round

Chicago

Windy city with continental climate

Los Angeles

Southern California with endless summer

Las Vegas

Desert city with hot, dry climate

Orlando

Theme park capital with subtropical weather

Boston

Historic city with New England seasons

San Diego

Perfect weather year-round

Washington DC

Capital city with four seasons

Seasonal Weather Patterns

Spring (March-May)

• Variable temperatures: 10-25°C (50-77°F)
• Regular rainfall in most regions
• Tornado season in the Midwest
• Cherry blossoms in the Northeast
• Perfect for national park visits

Summer (June-August)

• Hot temperatures: 25-35°C (77-95°F)
• Humid in the East, dry in the West
• Afternoon thunderstorms common
• Hurricane season begins
• Peak tourist season nationwide

Autumn (September-November)

• Pleasant temperatures: 10-20°C (50-68°F)
• Less rainfall than spring
• Fall foliage in the Northeast
• Indian summer periods
• Ideal for outdoor activities

Winter (December-February)

• Cold in the North: -5-5°C (23-41°F)
• Mild in the South: 10-20°C (50-68°F)
• Snow common in northern regions
• Ski season in mountain areas
• Rain in the Pacific Northwest

Best Time to Visit

The best time to visit the United States depends on your destination and preferred activities:

• Spring (April-May) and Autumn (September-October) are generally the best times to visit most cities, offering pleasant temperatures and beautiful scenery.

• Summer (June-August) is perfect for beach destinations and national parks but can be uncomfortably hot and crowded in many cities.

• Winter (December-February) is ideal for skiing in mountain regions and enjoying mild temperatures in southern states.

Regional Weather Variations

Northeast

• Hot summers with temperatures around 30°C (86°F)
• Cold winters often below 0°C (32°F)
• Regular precipitation year-round
• Significant snowfall in winter
• Four distinct seasons

Southeast

• Hot, humid summers around 32°C (90°F)
• Mild winters rarely below 10°C (50°F)
• Frequent afternoon thunderstorms
• Hurricane risk in coastal areas
• Long growing season

West Coast

• Mild temperatures year-round 15-25°C (59-77°F)
• Limited temperature variations
• Dry summers and wet winters
• Coastal fog influence
• Mediterranean climate pattern

Midwest

• Hot summers up to 35°C (95°F)
• Very cold winters below -10°C (14°F)
• Tornado risk in spring
• Variable precipitation
• Extreme temperature ranges

Southwest

• Very hot summers above 40°C (104°F)
• Mild winters around 15°C (59°F)
• Very low humidity
• Limited rainfall
• Large daily temperature swings

Tips for Visitors

1. Summer Travel: Book accommodations with air conditioning when visiting during summer months.

2. Winter Travel: Be prepared for flight delays and travel disruptions in northern regions during winter.

3. Regional Considerations: Pack appropriate clothing for the significant climate variations between regions.

4. Seasonal Events: Plan around major weather events like hurricane season in the Southeast or tornado season in the Midwest.