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Travel guide > America >

Climate and weather of the United States of America



< Turks and CaicosUnited States Virgin Islands >


United States of America




 

Climate

 
The United States have five different climatic zones.

Temperatures are low in winter and high in summer except in the southeast and in the southwest where they vary little throughout the year. Rains fall regularly all year round except in the southwest.

Northwestern coast of the United States
The northwest coast has a temperate climate with four seasons. Rainfall is high (200 rainy days per year).

Winter (December to February)
Temperatures are low (7 to 10°) and rainfall is high. Sunshine is very low (two to three hours a day) because the sky si cloudy most of the time.

Spring (March to June)
Temperatures rise (13° in March, 18° in May) and rainfall is low.

Summer (July to August)
Temperatures reach 25° and rainfall is low. Sunshine is high (nine to ten hours per day).

Autumn (September to November)
Temperatures drop gradually and rainfall is high.

California (southwestern coast of the United States)
California has a Mediterranean climate with four seasons.

Winter (December to February)
Temperatures are mild (14° in the north of California, 20° in the south) and rainfall is moderate. Sunshine ranges between six and eight hours a day.

Spring (March to May)
Temperatures range between 16° in the north and 20° in the south. Rainfall is low.

Summer (June to September)
Temperatures are high (25° on the coast, 30° away from the sea) and rainfall is nonexistent. Sea temperature is constantly cool (17 to 19°). Sunshine is very high (nine to ten hours a day on the coast, twelve to fourteen hours a day in the center and in the east of California).

Autumn (October to November)
Temperatures drop slowly and rainfall is low.

The Rocky Mountains (western United States)
The Rocky mountains have a continental climate with four seasons. Precipitation is low because the western mountains block the moisture-laden clouds.

Winter (December to February)
Temperatures are low in the north (4°) and mild in the south (18°). Rainfall is moderate.

Spring (March to May)
Temperatures rise progressively (13° in March to 23° to May in the north, 23° in March to 33° in May in the south). Rainfall is very low.

Summer (June to September)
Temperatures range from 30° in the north to 40° in the south. Rainfall is nonexistent.

Autumn (October to November)
Temperatures lose ten degrees in the north (20° in October, 10° in November) but they remain high in the south (29°). Rainfall is very low.

Northeastern United States
The northeast of the United States has a continental climate.

Winter (December to February)
Temperatures reach 0° (they sometimes drop up to -20°). Rainfall is moderate. Cold waves and snow storms are frequent in January.

Spring (March to May)
Temperatures rise progressively (10-15° in March, 20-25° in May) and rainfall is moderate.

Summer (June to August)
Temperatures are high (30°) and rainfall is moderate. Sunshine is high (nine to ten hours per day).

Autumn (September to November)
Temperatures drop slowly between September (24°) and November (12°). Rainfall is moderate.

Southeastern United States
The southeast has a subtropical climate with a rainy season and a dry season. Rainfall varies between 1 100 and 1 300 mm per year.

Rainy season (May to October)
Temperatures are high (30 to 34°) and rainfall is abundant. Hurricanes and tornadoes are frequent.

Dry season (November to April)
Temperatures reach 24° in Florida and 20° elsewhere (they drop to 14° in December, January and February everywhere except in Florida where they do not change). Rainfal is low.

 When to go to the United States of America (pleasant climate) 
The climate of the United States of America is pleasant during the following months :

January
February
March
April
May
June
July
August
September
October
November
December

 

Weather

(main cities) 
Average temperatures and rainfall



Temp
January
February
March
April
May
June
max
-6°
-4°
12°
16°
min
-13°
-12°
-8°
-2°
Temp
July
August
September
October
November
December
max
19°
17°
12°
-3°
-5°
min
10°
-3°
-10°
-12°

Rain
January
February
March
April
May
June
mm
20
20
20
20
20
30
Rain
July
August
September
October
November
December
mm
40
60
70
50
30
30



Temp
January
February
March
April
May
June
max
13°
19°
24°
min
-6°
-5°
10°
15°
Temp
July
August
September
October
November
December
max
27°
26°
22°
17°
11°
min
18°
17°
13°
-7°

Rain
January
February
March
April
May
June
mm
90
90
90
90
80
80
Rain
July
August
September
October
November
December
mm
70
80
80
80
110
100



Temp
January
February
March
April
May
June
max
-2°
15°
21°
26°
min
-11°
-9°
-2°
14°
Temp
July
August
September
October
November
December
max
29°
28°
24°
17°
min
16°
16°
12°
-7°

Rain
January
February
March
April
May
June
mm
40
40
70
90
80
100
Rain
July
August
September
October
November
December
mm
90
110
100
60
70
60



Temp
January
February
March
April
May
June
max
12°
14°
20°
24°
28°
33°
min
12°
17°
21°
Temp
July
August
September
October
November
December
max
36°
35°
31°
26°
19°
14°
min
23°
23°
19°
13°

Rain
January
February
March
April
May
June
mm
40
50
70
90
120
70
Rain
July
August
September
October
November
December
mm
60
60
80
90
60
40



Temp
January
February
March
April
May
June
max
11°
16°
21°
27°
min
-9°
-7°
-3°
11°
Temp
July
August
September
October
November
December
max
31°
30°
25°
19°
11°
min
14°
13°
-4°
-8°

Rain
January
February
March
April
May
June
mm
10
10
30
40
60
40
Rain
July
August
September
October
November
December
mm
50
40
30
20
20
10



Temp
January
February
March
April
May
June
max
14°
18°
22°
25°
29°
32°
min
10°
14°
18°
21°
Temp
July
August
September
October
November
December
max
34°
34°
31°
27°
22°
18°
min
22°
22°
20°
14°
10°

Rain
January
February
March
April
May
June
mm
80
70
70
80
130
120
Rain
July
August
September
October
November
December
mm
90
80
120
110
90
80



Temp
January
February
March
April
May
June
max
10°
17°
23°
27°
min
-9°
-7°
11°
16°
Temp
July
August
September
October
November
December
max
30°
28°
25°
18°
11°
min
18°
17°
13°
-5°

Rain
January
February
March
April
May
June
mm
60
60
100
90
100
90
Rain
July
August
September
October
November
December
mm
110
90
70
60
80
80



Temp
January
February
March
April
May
June
max
18°
19°
22°
26°
29°
32°
min
10°
12°
16°
20°
Temp
July
August
September
October
November
December
max
33°
32°
31°
26°
23°
19°
min
22°
22°
21°
15°
10°

Rain
January
February
March
April
May
June
mm
80
100
90
70
90
150
Rain
July
August
September
October
November
December
mm
140
200
180
70
60
70



Temp
January
February
March
April
May
June
max
14°
17°
20°
25°
31°
37°
min
10°
15°
20°
Temp
July
August
September
October
November
December
max
41°
39°
35°
27°
19°
14°
min
25°
24°
19°
12°

Rain
January
February
March
April
May
June
mm
10
10
10
10
10
...
Rain
July
August
September
October
November
December
mm
10
10
10
10
10
10

Los Angeles

Temp
January
February
March
April
May
June
max
19°
19°
19°
20°
20°
22°
min
10°
10°
11°
13°
15°
Temp
July
August
September
October
November
December
max
24°
25°
25°
24°
21°
19°
min
17°
18°
17°
15°
11°

Rain
January
February
March
April
May
June
mm
60
60
50
20
...
...
Rain
July
August
September
October
November
December
mm
...
...
10
10
40
40



Temp
January
February
March
April
May
June
max
24°
25°
26°
28°
29°
31°
min
15°
16°
18°
20°
22°
24°
Temp
July
August
September
October
November
December
max
32°
32°
31°
29°
27°
25°
min
25°
25°
25°
22°
19°
16°

Rain
January
February
March
April
May
June
mm
50
50
60
70
150
240
Rain
July
August
September
October
November
December
mm
140
190
190
140
60
40



Temp
January
February
March
April
May
June
max
10°
16°
21°
26°
30°
min
-3°
-2°
13°
18°
Temp
July
August
September
October
November
December
max
32°
31°
28°
22°
16°
10°
min
20°
19°
16°
-1°

Rain
January
February
March
April
May
June
mm
90
100
120
110
120
90
Rain
July
August
September
October
November
December
mm
100
90
90
60
100
120



Temp
January
February
March
April
May
June
max
15°
21°
26°
min
-4°
-3°
12°
17°
Temp
July
August
September
October
November
December
max
29°
28°
23°
17°
12°
min
20°
20°
16°
10°

Rain
January
February
March
April
May
June
mm
80
70
90
90
100
90
Rain
July
August
September
October
November
December
mm
100
90
80
70
100
90



Temp
January
February
March
April
May
June
max
10°
17°
22°
27°
min
-5°
-6°
11°
16°
Temp
July
August
September
October
November
December
max
30°
29°
25°
19°
12°
min
20°
18°
15°
-3°

Rain
January
February
March
April
May
June
mm
80
70
90
90
100
90
Rain
July
August
September
October
November
December
mm
110
100
90
70
80
80



Temp
January
February
March
April
May
June
max
18°
21°
24°
29°
33°
40°
min
12°
17°
22°
Temp
July
August
September
October
November
December
max
41°
40°
37°
31°
27°
18°
min
27°
26°
22°
16°

Rain
January
February
March
April
May
June
mm
10
10
20
10
...
...
Rain
July
August
September
October
November
December
mm
20
20
20
20
20
30



Temp
January
February
March
April
May
June
max
16°
18°
23°
27°
29°
33°
min
15°
19°
22°
Temp
July
August
September
October
November
December
max
35°
35°
32°
27°
22°
17°
min
23°
23°
21°
14°

Rain
January
February
March
April
May
June
mm
40
40
40
60
110
100
Rain
July
August
September
October
November
December
mm
50
60
80
80
60
40



Temp
January
February
March
April
May
June
max
19°
19°
19°
20°
20°
22°
min
10°
11°
13°
15°
17°
Temp
July
August
September
October
November
December
max
24°
25°
25°
24°
21°
19°
min
18°
19°
18°
16°
12°

Rain
January
February
March
April
May
June
mm
50
40
40
20
...
...
Rain
July
August
September
October
November
December
mm
...
...
10
10
40
40



Temp
January
February
March
April
May
June
max
13°
15°
16°
17°
19°
21°
min
10°
11°
Temp
July
August
September
October
November
December
max
22°
22°
23°
21°
17°
13°
min
12°
12°
13°
11°

Rain
January
February
March
April
May
June
mm
120
80
80
40
...
...
Rain
July
August
September
October
November
December
mm
...
...
...
30
70
80



Temp
January
February
March
April
May
June
max
15°
18°
19°
22°
24°
27°
min
11°
13°
Temp
July
August
September
October
November
December
max
29°
29°
28°
24°
19°
15°
min
14°
14°
14°
12°

Rain
January
February
March
April
May
June
mm
70
50
60
30
...
...
Rain
July
August
September
October
November
December
mm
...
...
...
20
50
50



Temp
January
February
March
April
May
June
max
10°
12°
14°
17°
21°
min
11°
Temp
July
August
September
October
November
December
max
24°
24°
21°
15°
10°
min
13°
13°
11°

Rain
January
February
March
April
May
June
mm
140
100
90
60
40
40
Rain
July
August
September
October
November
December
mm
20
30
40
80
140
150

Washington (Capital of the United States of America)

Temp
January
February
March
April
May
June
max
13°
19°
24°
29°
min
-3°
-2°
13°
19°
Temp
July
August
September
October
November
December
max
31°
30°
26°
20°
14°
min
22°
21°
17°
10°

Rain
January
February
March
April
May
June
mm
70
70
80
70
90
80
Rain
July
August
September
October
November
December
mm
100
100
80
80
80
80

Weather data (temperatures and precipitation) for the United States of America are derived from monthly averages established over the last twenty years.

 Quick facts 
The United States, a country located in North America, are bordered by Mexico and the Caribbean Sea to the south, by the Pacific Ocean to the west, by Canada to the north and by the Atlantic Ocean to the east.

Capital: Washington
Area: 9 370 000 km²
Population: 319 000 000 inhabitants
Language: English
Currency: Dollar

United States of America










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