Contiguous United States

Region · 🇺🇸 United States

Area 8,830,655 km²

Time zone America/Chicago, America/Denver, America/New_York, America/Los_Angeles

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Contiguous United States — Map

Climate & when to visit

Select a month

Typical weather in January

Poor

-4°–16° · varies by region
0° at night
4–13 rainy days · varies by region
12 sunny days
5 hours of sunshine per day
Dry air
Light breeze
10°C · too cold to swim
UV index 2 · low

Typical weather in February

Poor

-2°–18° · varies by region
1° at night
4–11 rainy days · varies by region
12 sunny days
6 hours of sunshine per day
Dry air
Light breeze
9°C · too cold to swim
UV index 3 · moderate

Typical weather in March

Fair

4°–21° · varies by region
4° at night
6–12 rainy days · varies by region
14 sunny days
7 hours of sunshine per day
Dry air
Light breeze
10°C · too cold to swim
UV index 5 · moderate

Typical weather in April

Good

11°–24° · varies by region
8° at night
8–13 rainy days · varies by region
15 sunny days
8 hours of sunshine per day
Dry air
Light breeze
11°C · too cold to swim
UV index 6 · high

Typical weather in May

Great

17°–28° · varies by region
13° at night
10–15 rainy days · varies by region
14 sunny days
9 hours of sunshine per day
Dry air
Light breeze
15°C · too cold to swim
UV index 7 · high

Typical weather in June

Good

22°–32° · varies by region
18° at night
7–16 rainy days · varies by region
15 sunny days
9 hours of sunshine per day
Comfortable humidity
Calm winds
18°C · cool for a dip
UV index 8 · very high

Typical weather in July

Fair

25°–34° · varies by region
20° at night
6–19 rainy days · varies by region
15 sunny days
9 hours of sunshine per day
Muggy, humid air
Calm winds
21°C · cool for a dip
UV index 8 · very high

Up to 5 days above 35°

Typical weather in August

Fair

25°–34° · varies by region
20° at night
7–16 rainy days · varies by region
16 sunny days
9 hours of sunshine per day
Humid air
Calm winds
22°C · cool for a dip
UV index 8 · very high

Up to 5 days above 35°

Typical weather in September

Good

21°–31° · varies by region
17° at night
7–12 rainy days · varies by region
16 sunny days
8 hours of sunshine per day
Comfortable humidity
Calm winds
21°C · cool for a dip
UV index 6 · high

Typical weather in October

Great

14°–26° · varies by region
11° at night
6–13 rainy days · varies by region
16 sunny days
7 hours of sunshine per day
Dry air
Light breeze
18°C · too cold to swim
UV index 4 · moderate

Typical weather in November

Fair

6°–21° · varies by region
6° at night
4–13 rainy days · varies by region
14 sunny days
6 hours of sunshine per day
Dry air
Light breeze
14°C · too cold to swim
UV index 3 · moderate

Typical weather in December

Poor

0°–17° · varies by region
2° at night
4–14 rainy days · varies by region
11 sunny days
5 hours of sunshine per day
Dry air
Light breeze
12°C · too cold to swim
UV index 2 · low

This destination spans several climate zones, so these figures are a range across the region rather than exact values. Climate data: NASA POWER (MERRA-2); NASA POWER (MERRA-2); NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER (MERRA-2); NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER (MERRA-2); NASA POWER (MERRA-2); NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER + Copernicus ERA5-Land and ERA5; NASA POWER + Copernicus ERA5; NASA POWER (MERRA-2); NASA POWER + Copernicus ERA5-Land · 1996–2025