Open Travel Guide
Weather in United States

United States Weather & Climate Guide 2026

United States's climate in numbers — the months that flatter it, the ones to avoid, and what to pack.

The United States offers incredible diversity from coast to coast, featuring world-class cities, stunning national parks, vibrant cultural scenes, and iconic landmarks. Experience everything from New York's skyline to California's beaches, from the Grand Canyon to tropical Hawaii.

The United States spans an extraordinary range of climates — from Arctic tundra in Alaska to tropical Hawaii, subtropical Florida to arid Southwest deserts, and temperate Pacific Northwest rainforests to humid continental Midwest. The contiguous 48 states experience four distinct seasons across most regions, with the East Coast having warm summers and cold winters, the South having mild winters and hot humid summers, the West Coast having Mediterranean conditions, and the Mountain West having dry cold winters and warm sunny summers.

Best time to visit

Recommendation

Best: June-August (summer vacation season, national parks busy)

Peak Season: June-August (summer vacation season, national parks busy)

Shoulder Season: April-May, September-October (pleasant weather, fewer crowds)

Avoid: November-March (winter, lower prices except ski resorts)

Best Reason:

Avoid Reason:

Month-by-month weather

Typical conditions throughout the year.

January

-4C to 5C/25F-41F (NYC); 15C/59F (Miami); -8C/18F (Denver)

Winter across most of the country. Ski season peaks. Florida and Hawaii are warm escapes. Post-holiday quiet period with lower prices.

February

-2C to 7C/28F-45F (NYC); 17C/62F (Miami); 0C/32F (Denver)

Still winter for most of the US. Presidents' Day weekend (mid-Feb) creates travel surge. Mardi Gras in New Orleans (moveable feast, Feb or March).

March

3C to 12C/37F-54F (NYC); 19C/66F (Miami); 5C/41F (Denver)

Spring arriving in the South and Southwest. St. Patrick's Day parades (March 17) in NYC, Boston, Chicago. DC cherry blossoms late March-early April.

April

9C to 18C/48F-64F (NYC); 21C/70F (Miami); 11C/52F (Denver)

Pleasant spring weather nationwide. DC cherry blossoms peak early April. National parks opening for season. Lower crowds than summer.

May

14C to 23C/57F-73F (NYC); 24C/75F (Miami); 16C/61F (Denver)

Ideal travel weather across the country. Kentucky Derby (first Saturday in May). National parks filling up but not yet peak crowds. Wildflowers in full bloom.

June

19C to 28C/66F-82F (NYC); 28C/82F (Miami); 22C/72F (Denver)

Summer begins — school holidays drive increased tourism. Beaches and national parks filling up. LGBTQ+ Pride events nationwide (NYC Pride massive). Hurricane season begins in Southeast.

July

22C to 31C/72F-88F (NYC); 30C/86F (Miami); 27C/81F (Denver)

Peak summer with Fourth of July celebration (July 4) nationwide. Most crowded and expensive month for national parks and beach destinations. Hot and humid in the East and South.

August

21C to 30C/70F-86F (NYC); 30C/86F (Miami); 26C/79F (Denver)

Hottest month in most of the country. School summer holidays continue — very crowded. Burning Man in Nevada desert (late August). Hurricane risk peaks in Florida and Gulf Coast.

September

17C to 25C/63F-77F (NYC); 28C/82F (Miami); 22C/72F (Denver)

Shoulder season begins — crowds thin and prices drop after Labor Day (first Monday). Still warm weather. Excellent for national parks. Albuquerque Balloon Fiesta (early October).

October

11C to 19C/52F-66F (NYC); 25C/77F (Miami); 14C/57F (Denver)

The best month for New England — peak fall foliage in Vermont and New Hampshire. Comfortable temperatures everywhere. Halloween celebrations build through October. Lower crowds than summer.

November

5C to 13C/41F-55F (NYC); 21C/70F (Miami); 5C/41F (Denver)

Shoulder season — good deals on hotels. Thanksgiving (fourth Thursday) is major travel period. New York City and Chicago can be cold but festive. Florida starts peak winter season.

December

0C to 7C/32F-45F (NYC); 19C/66F (Miami); -3C/27F (Denver)

Christmas festivities in all major cities — NYC Rockefeller Center tree, San Francisco Holiday Cable Car, Chicago Christkindlmarket. New Year's Eve Times Square ball drop. Ski resorts open.

The seasons

What to expect in each part of the year.

Season

Spring

Months: Mar-May

Cherry blossoms in Washington DC (late March), wildflowers in California and Texas, comfortable temperatures across most of the country. Ideal for national parks before summer crowds.

Season

Summer

Months: Jun-Aug

Peak travel season with school holidays driving crowds to beaches, national parks, and cities. Hot and humid in the South and Midwest; warm and dry in the West; perfect temperatures in the Pacific Northwest. Thunderstorms common in plains and Southeast.

Season

Fall

Months: Sep-Nov

Best travel season for many — New England fall foliage peaks October in Vermont, New Hampshire, and Maine. Comfortable temperatures nationwide. Shoulder season pricing with fewer crowds than summer. Ideal for cities.

Season

Winter

Months: Dec-Feb

Ski resorts in Colorado, Utah, Vermont, and Lake Tahoe peak in January-February. Florida, Hawaii, Arizona, and Southern California are warm winter destinations. Cities see festive Christmas markets and New Year's celebrations. Generally lowest prices except ski towns.

Crowds & peak times

When to expect tourists and when to avoid them.

High Season
Jun-Aug (school holidays); Dec 20-Jan 3 (Christmas/New Year's)
Shoulder Season
Apr-May and Sep-Oct (best weather/crowd balance)
Low Season
Jan-Mar (except ski resorts and Florida/Hawaii)

Major events & festivals

Time your visit around what matters.

Event

Mardi Gras

World's biggest free party in New Orleans with parades, beads, costumes, music, and debauchery. Mardi Gras Day is the climax but celebrations last weeks.

Event

Coachella Valley Music Festival

California desert music festival with top artists, art installations, celebrity sightings, and Instagram-worthy fashion. Tickets sell out fast.

Event

Kentucky Derby

Prestigious horse race and social event. Mint juleps, elaborate hats, and betting on the fastest two minutes in sports.

Event

Lollapalooza

Major music festival in Grant Park with multiple stages, diverse genres from rock to hip hop to EDM. Chicago summer institution.

Event

Burning Man

Radical self-expression in Nevada desert. Art installations, theme camps, the Burn, and unique community. Tickets allocated by lottery.

Event

New York Fashion Week

Bi-annual fashion industry event with runway shows, parties, and celebrity sightings. Some shows open to public, most industry-only.

Event

Albuquerque Balloon Fiesta

World's largest hot air balloon festival with mass ascensions of 500+ balloons at sunrise. Spectacular photography opportunity.

Event

Halloween in Salem

Witch City goes all out with haunted happenings, witch trials history, costume parties, and spooky tours throughout October.

Event

Thanksgiving Day Parade

Macy's iconic parade with giant balloons, floats, performances broadcast nationwide. Arrive very early for viewing spots on route.

Event

New Year's Eve Times Square Ball Drop

Iconic midnight ball drop watched by millions on TV and one million in person. Arrive 12+ hours early, no bathrooms, extreme cold. Lifetime travel list item.

Event

South by Southwest (SXSW)

Music, film, and interactive conference/festival. Tech startups, emerging artists, film premieres, and BBQ in Austin.

Event

Fourth of July

Independence Day celebrated nationwide with fireworks, BBQ, parades, and patriotism. NYC Macy's fireworks and DC National Mall celebrations are largest.