July weather forecast
Casper, WY

The calm North Platte River flowing through downtown Casper in Wyoming
The calm North Platte River flowing through downtown Casper in Wyoming

Weather in July

July, like June, in Casper, Wyoming, is a moderately hot summer month, with average temperature fluctuating between 83.5°F (28.6°C) and 59.5°F (15.3°C).

Temperature

The warmest month is July, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 59.5°F (15.3°C).

Humidity

The average relative humidity in Casper is 39%.

Rainfall

In Casper, during 8.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in Casper, there are 91.6 rainfall days, and 9.69" (246mm) of precipitation is accumulated.

Snowfall

In Casper, Wyoming, snow does not fall in June through August.

Daylight

In July, the average length of the day is 15h.

Sunshine

July and August, with an average of 11.9h of sunshine, are months with the most sunshine.

UV index

Months with the highest UV index in Casper are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in July transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Casper?

With an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 59.5°F (15.3°C), July is the warmest month.

What is the average humidity in July in Casper?

The average relative humidity in July in Casper is 39%.

How many days does it rain in July in Casper?

In Casper, Wyoming, in July, during 8.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow in Casper?

In Casper, Wyoming, snow does not fall in June through August.

How many hours of daylight does Casper have in July?

The average length of the day in July in Casper, Wyoming, is 15h.

What are the months with the most sunshine in Casper?

July and August, with an average of 11.9h of sunshine, are months with the most sunshine in Casper, Wyoming.

How many hours of sunshine does Casper have in July?

In Casper, the average sunshine in July is 11.9h.

What are the months with the highest UV index in Casper?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Casper, Wyoming.

What is the UV index reading in July in Casper?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

Average temperature in July
Casper, WY

Average temperature in July - Casper, WY
  • Average high temperature in July: 28.6°C

The warmest month (with the highest average high temperature) is July (28.6°C).
The month with the lowest average high temperature is December (-2°C).

  • Average low temperature in July: 15.3°C

The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is December (-9.4°C).

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Average pressure in July
Casper, WY

Average pressure in July - Casper, WY
  • Average pressure in July: 1013.1mbar

The month with the highest atmospheric pressure is January (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.9mbar).

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Average wind speed in July
Casper, WY

Average wind speed in July - Casper, WY
  • Average wind speed in July: 13.7km/h

The windiest month (with the highest average wind speed) is January (19.4km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).

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Average humidity in July
Casper, WY

Average humidity in July - Casper, WY
  • Average humidity in July: 39%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in July
Casper, WY

Average rainfall in July - Casper, WY
  • Average rainfall in July: 16mm

The wettest month (with the highest rainfall) is May (45mm).
The driest months (with the least rainfall) are January, August and September (11mm).

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Average rainfall days in July
Casper, WY

Average rainfall days in July - Casper, WY
  • Average rainfall days in July: 8.4 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is January (3.6 days).

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Average snowfall in July
Casper, WY

Average snowfall in July - Casper, WY
  • Average snowfall in July: 0mm

The month with the highest snowfall is November (139mm).
Months with the least snowfall are June, July and August (0mm).

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Average snowfall days in July
Casper, WY

Average snowfall days in July - Casper, WY
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (11.2 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in July /
Average sunshine in July
Casper, WY

Average daylight in July / Average sunshine in July - Casper, WY
  • Average daylight in July: 15h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in July: 11.9h

Months with the most sunshine are July and August (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.1h).

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Average sunshine days in July
Casper, WY

Average sunshine days in July - Casper, WY
  • Average sunshine days in July: 17.9 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.9 days).

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Average UV index in July
Casper, WY

Average UV index in July - Casper, WY
  • Average UV index in July: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in July
Casper, WY

Average cloud cover in July - Casper, WY
  • Average cloud cover in July: 14

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in July
Casper, WY

Average visibility in July - Casper, WY
  • Average visibility in July: 10km

Months with the highest visibility are March, May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, April, November and December (9km).

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