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United States - weather in July



Flag - United States

Map - United States




July is the central month of summer in the United States, and is the warmest of the year in most of the country, with the exception of the west coast (see Seattle, San Francisco, Los Angeles) and of the southernmost part (see the states of the Gulf of Mexico), where the warmest month is usually August.
Temperatures are mild to pleasantly warm on the Pacific coast (see Seattle, San Francisco, Los Angeles), where a cold sea current flows, while they are mitigated by altitude in the Rocky Mountains (see Helena, Denver). For the rest, it's warm to hot in the center-north and very hot in the south. In the deserts of the southwest (see Phoenix), dry heat reigns, while in the central-eastern part, influenced by the Gulf of Mexico, the humidity is higher and therefore the weather is sticky and unpleasant.
Furthermore, heat waves can occur in almost the entire territory, which are rarer and shorter in the north, while in the center-south they last longer and are accompanied by high humidity.
If we exclude the Pacific coast and the arid plateau known as Great Basin (see Utah, Nevada and southeastern Oregon), where summer is the driest season, the rains are from moderate to abundant in most of the territory, even though they often decrease a little compared to June.
Thunderstorms can break out even in the Great Plains, where there is little rain in the rest of the year. Also, in the arid southwestern states (Arizona, New Mexico, West Texas), July through September is the time of the "North American monsoon" which can bring thunderstorms from the Gulf of California.
In July, tornadoes are rarer in east-central United States than in previous months, however, they can occasionally occur, especially in the north, in the northern part of the Great Plains.
From June to November is the season of hurricanes, which can affect the states bordering the Gulf of Mexico (Texas, Louisiana, Mississippi, Alabama and Florida) and the southernmost states of the Atlantic (Georgia, North and South Carolina). More rarely, a hurricane from the Pacific to the west of Mexico, usually weakened, can affect the southwest (southern California, Arizona, New Mexico). However, hurricanes are still rare in July, and the time when they are most likely is from August to October.
The United States is located at medium latitudes, however, in July the days are long, especially in the north, where they last more than 15 hours.

The sea is warm enough for swimming in the Gulf of Mexico, in Florida and on the Atlantic coast as far north as Virginia, but ultimately as far north as Maryland, Delaware and New Jersey.
Instead, to the west, on the Pacific Ocean, the sea is cold even in California, due to the aforementioned cold sea current.

The following tables show the climate averages in the month of july in the United States in a selection of locations.

Monthly climate averages - July

(from north to south)

Spokane
(600 m.)
Spokane, position on the map
Spokane, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
133115343%12.3h15.5h

Seattle
Seattle, position on the map
Seattle, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
142515564%10.1h15.5h13

Fargo
(275 m.)
Fargo, position on the map
Fargo, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
152880867%11.3h15.4h

Duluth
(435 m.)
Duluth, position on the map
Duluth, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
1425100971%9.9h15.4h

Yellowstone Lake
(2,400 m.)
Yellowstone Lake, position on the map
Yellowstone Lake, position on the map
Temperature
(°C)
Precipitation
MinMaxmmDays
4224010

Chicago
Chicago, position on the map
Chicago, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
2029951063%10.3h14.8h

Salt Lake City
(1,300 m.)
Salt Lake City, position on the map
Salt Lake City, position on the map
Temperature
(°C)
PrecipitationSunshine
MinMaxmmDays
203410412.3h

New York
New York, position on the map
New York, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
21301151066%8.7h14.7h22

Denver
(1,600 m.)
Denver, position on the map
Denver, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
163255843%10.5h14.6h

Cincinnati
Cincinnati, position on the map
Cincinnati, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
1930951171%8.9h14.6h

Kansas City
(270 m.)
Kansas City, position on the map
Kansas City, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
2232110864%10.6h14.6h

San Francisco
San Francisco, position on the map
San Francisco, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
13230173%10.1h14.5h13

Las Vegas
(650 m.)
Las Vegas, position on the map
Las Vegas, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
284010220%12.6h14.3h

Memphis
Memphis, position on the map
Memphis, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
23331201068%10.5h14.2h

Los Angeles
Los Angeles, position on the map
Los Angeles, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
18290068%11.7h14.1h18

Atlanta
(300 m.)
Atlanta, position on the map
Atlanta, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
22321201270%8.8h14.1h

Phoenix
(350 m.)
Phoenix, position on the map
Phoenix, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
294125427%12.2h14.1h

Dallas
Dallas, position on the map
Dallas, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
243555457%10.7h14.0h

El Paso
(1,150 m.)
El Paso, position on the map
El Paso, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
233540839%11.6h14.0h

New Orleans
New Orleans, position on the map
New Orleans, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
25331701475%8.3h13.8h30

Houston
Houston, position on the map
Houston, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
243595971%9.5h13.8h29

Orlando
Orlando, position on the map
Orlando, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay length
MinMaxmmDays
23331901778%9.5h13.7h

Miami
Miami, position on the map
Miami, position on the map
Temperature
(°C)
PrecipitationHumiditySunshineDay lengthSea
temperature
MinMaxmmDays
25331851773%10.0h13.6h30



See also: United States, the weather in June - August
The climate of United States

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