July weather forecast
Jackson, WY

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A calm and clear river and vast green fields approaching the iconic white mountains within the Grand Teton National Park in Jackson, Wyoming
A calm and clear river and vast green fields approaching the iconic white mountains within the Grand Teton National Park in Jackson, Wyoming

Weather in July

Amid the dog days of summer, July in Jackson truly emulates the essence of the season. The mercury scales the highest point of the year, reaching 73.4°F (23°C). With snowfall almost absent, the last traces of winter are swept away, making room for a tinge of adventure. Lengthy, sunny days allow ample time for strolling around or savoring the serenity of the picturesque surroundings. July decidedly owns the crown of the warmest month of the year.

Temperature

July is the warmest month, with an average high-temperature of 73.4°F (23°C) and an average low-temperature of 43.5°F (6.4°C).

Humidity

In Jackson, the average relative humidity in July is 53%.

Rainfall

In Jackson, during July, the rain falls for 11.8 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 103 rainfall days, and 29.84" (758mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall. In Jackson, in July, during 0.4 snowfall days, 0.24" (6mm) of snow is typically accumulated. Throughout the year, there are 173.6 snowfall days, and 181.26" (4604mm) of snow is accumulated.

Daylight

In July, the average length of the day in Jackson is 15h and 2min.
On the first day of July, sunrise is at 5:46 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:46 pm MDT.

Sunshine

July has the most sunshine of the year, with an average of 11.6h of sunshine.

UV index

With an average maximum UV index of 5, July is the month with the highest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In July, a regular UV index of 5 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July, with average temperatures reaching a high of 73.4°F (23°C) and a low of 43.5°F (6.4°C), is the warmest month in Jackson.

What is the temperature in July?

An average high-temperature, in July, in Jackson, is 73.4°F (23°C) and the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in July?

In Jackson, the average relative humidity in July is 53%.

How many days does it rain in July?

In Jackson, in July, it is raining for 11.8 days, with typically 1.42" (36mm) of accumulated precipitation.

How many days does it snow in July?

In Jackson, in July, snow falls for 0.4 days, with typically accumulated 0.24" (6mm) of snow.

What is the average length of the day in July?

In July, the average day length is 15h and 2min.

What time are sunrise and sunset in July in Jackson?

On the first day of July, sunrise is at 5:46 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:46 pm MDT.

What month has the most sunshine?

July has the most sunshine of the year in Jackson, with an average of 11.6h of sunshine.

How many hours of sunshine does Jackson have in July?

The average sunshine duration in July is 11.6h.

What is the month with the highest UV index?

With an average maximum UV index of 5, July is the month with the highest UV index.

What is the UV index intensity in July?

The average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Jackson, WY

Average temperature in July - Jackson, WY
  • Average high temperature in July: 73.4°F

The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is December (21.9°F).

  • Average low temperature in July: 43.5°F

The month with the highest average low temperature is July (43.5°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).

Average pressure in July
Jackson, WY

Average pressure in July - Jackson, WY
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Jackson, WY

Average wind speed in July - Jackson, WY
  • Average wind speed in July: 5.3mph

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).

Average humidity in July
Jackson, WY

Average humidity in July - Jackson, WY
  • Average humidity in July: 53%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (50%).

Average rainfall in July
Jackson, WY

Average rainfall in July - Jackson, WY
  • Average rainfall in July: 1.42"

The wettest month (with the highest rainfall) is February (3.54").
The driest month (with the least rainfall) is August (1.34").

Average rainfall days in July
Jackson, WY

Average rainfall days in July - Jackson, WY
  • Average rainfall days in July: 11.8 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in July
Jackson, WY

Average snowfall in July - Jackson, WY
  • Average snowfall in July: 0.24"

The month with the highest snowfall is February (29.33").
The month with the least snowfall is August (0.12").

Average snowfall days in July
Jackson, WY

Average snowfall days in July - Jackson, WY
  • Average snowfall days in July: 0.4 days

The month with the highest number of snowfall days is March (24.8 days).
The month with the least snowfall days is July (0.4 days).

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

Average daylight in July / Average sunshine in July - Jackson, WY
  • Average daylight in July: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in July: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

Average sunshine days in July
Jackson, WY

Average sunshine days in July - Jackson, WY
  • Average sunshine days in July: 15.6 days

The month with the most sunshine days is July (15.6 days).
The month with the least sunshine days is April (3.8 days).

Average UV index in July
Jackson, WY

Average UV index in July - Jackson, WY
  • Average UV index in July: 5

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

Average cloud cover in July
Jackson, WY

Average cloud cover in July - Jackson, WY
  • Average cloud cover in July: 16

The month with the most cloud cover is February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 16).

Average visibility in July
Jackson, WY

Average visibility in July - Jackson, WY
  • Average visibility in July: 6mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).

Jackson, Wyoming, USA

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