Jackson
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Jackson, WY

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
The last month of the summer, August, is also an agreeable month in Jackson, Wyoming, with average temperature varying between 32°F (0°C) and 72.1°F (22.3°C).

Temperature

In Jackson, the average high-temperature in August is almost the same as in July - an agreeable 72.1°F (22.3°C). In August, the average low-temperature is 32°F (0°C).

Humidity

The least humid month in Jackson is August, with an average relative humidity of 50%.

Rainfall

August is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

Months with snowfall in Jackson are January through December. August is the month with the least snowfall in Jackson. Snow falls for 0.5 days and accumulates 0.12" (3mm) of snow.

Daylight

The average length of the day in Jackson is 13.9h.

Sunshine

In August, the average sunshine in Jackson is 11.4h.

UV index

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in August in Jackson?

In Jackson, Wyoming, in August, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 32°F (0°C).

What is the least humid month in Jackson?

With an average relative humidity of 50%, August is the least humid month in Jackson.

What is the average humidity in August in Jackson?

In August, the average relative humidity in Jackson, Wyoming, is 50%.

How much does it rain in Jackson in August?

In August, in Jackson, Wyoming, the rain falls for 11.8 days. Throughout August, 1.34" (34mm) of precipitation is accumulated.

What is the driest month in Jackson?

The month with the least rainfall in Jackson is August when the rain falls for 11.8 days and typically collects 1.34" (34mm) of precipitation.

How many days does it snow in August in Jackson?

In Jackson, in August, during 0.5 snowfall days, 0.12" (3mm) of snow is typically accumulated.

When it does not snow in Jackson?

August is the month with the least snowfall. Snow falls for 0.5 days and accumulates 0.12" (3mm) of snow.

What is the average length of the day in August in Jackson?

In August, the average length of the day in Jackson, Wyoming, is 13.9h.

How many hours of sunshine does Jackson have in August?

In August, the average sunshine in Jackson, Wyoming, is 11.4h.

What is the UV index intensity in August in Jackson?

The average daily maximum UV index in August in Jackson is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in August - Jackson, WY
  • Average high temperature in August: 72.1°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 August: 0°F

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°F).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°F).

Average humidity in August - Jackson, WY
  • Average humidity in August: 50%

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

Average rainfall in August - Jackson, WY
  • Average rainfall in August: 1.34"

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

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

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

Average snowfall in August - Jackson, WY
  • Average snowfall in August: 0.12"

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

Average snowfall days in August - Jackson, WY
  • Average snowfall days in August: 0.5 days

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

Average daylight in August / Average sunshine in August - Jackson, WY
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in August: 11.4h

The month with most sunshine is July (Average sunshine: 11.6h).
The month with least sunshine is February (Average sunshine: 3.4h).

Average UV index in August - Jackson, WY
  • Average UV index in August: 4

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