August 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 August

Retaining the balm of July, August continues the warm trend, though the city experiences a slight dip in temperatures, hovering between 43.3°F and 72.1°F. Activities promoted by warm and pleasant weather continue to entertain locals and visitors alike. August also observes minimal snowfall, just registering 0.12". The sunny days, although subject to gradually shortening hours, enhance the experience of the many outdoor festivals centred in and around the city.

Temperature

The transition into August in Jackson notes an average high-temperature of a pleasant 72.1°F, revealing a mild distinction from the 73.4°F in July. Despite considerable daily temperature swings, a steady low-temperature average of 43.3°F is noted throughout August.

Humidity

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

Rainfall

The month with the least rainfall is August, when the rain falls for 11.8 days and typically collects 1.34" of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:46 pm. On the last day of August, in Jackson, sunrise is at 6:45 am and sunset at 8:00 pm MDT.

Sunshine

The average sunshine in August in Jackson is 11.4h.

UV index

In Jackson, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In August, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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FAQ

What is the usual temperature for Jackson in August?

The average high-temperature and low-temperature during August are 72.1°F and 43.3°F respectively.

What is the least humid month in Jackson?

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

What is the average humidity in August in Jackson?

In August, the average relative humidity is 50%.

What is the driest month in Jackson?

August is the month with the least rainfall in Jackson, Wyoming. Rain falls for 11.8 days and accumulates 1.34" of precipitation.

How much does it rain in Jackson in August?

In Jackson, in August, it is raining for 11.8 days, with typically 1.34" of accumulated precipitation.

When it does not snow in Jackson?

August is the month with the least snowfall in Jackson. Snow falls for 0.5 days and accumulates 0.12" of snow.

How much does it snow in Jackson in August?

In Jackson, Wyoming, during August, snow falls for 0.5 days and regularly aggregates up to 0.12" of snow.

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

The average day length in August is 13h and 55min.

When are sunrise and sunset in August in Jackson?

On the first day of August, sunrise is at 6:12 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 8:00 pm MDT.

How many hours of sunshine does Jackson have in August?

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

What is the UV index intensity in August in Jackson?

In Jackson, Wyoming, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Jackson, WY

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: 43.3°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).

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Average pressure in August
Jackson, WY

Average pressure in August - Jackson, WY
  • Average pressure in August: 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).

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Average wind speed in August
Jackson, WY

Average wind speed in August - Jackson, WY
  • Average wind speed in August: 5.2mph

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).

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Average humidity in August
Jackson, WY

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%).

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Average rainfall in August
Jackson, WY

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 least rainfall) is August (1.34").

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Average rainfall days in August
Jackson, WY

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 least rainy days is January (2.9 days).

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Average snowfall in August
Jackson, WY

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 least snowfall is August (0.12").

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Average snowfall days in August
Jackson, WY

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 least snowfall days is July (0.4 days).

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

Average daylight in August / Average sunshine in August - Jackson, WY
  • Average daylight in August: 13h and 5min

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 August: 11h and 2min

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).

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Average sunshine days in August
Jackson, WY

Average sunshine days in August - Jackson, WY
  • Average sunshine days in August: 14.8 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).

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Average UV index in August
Jackson, WY

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

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Average cloud cover in August
Jackson, WY

Average cloud cover in August - Jackson, WY
  • Average cloud cover in August: 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).

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Average visibility in August
Jackson, WY

Average visibility in August - Jackson, WY
  • Average visibility in August: 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).

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Jackson, Wyoming, USA

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