August weather forecast
Mammoth, WY

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Weather in August

August, the last month of the summer in Mammoth, is another pleasant month, with an average temperature varying between 43.7°F (6.5°C) and 71.4°F (21.9°C).

Temperature

August's weather displays an average high-temperature of a still pleasant 71.4°F (21.9°C), slightly varied from July's 72.9°F (22.7°C). During August, Mammoth reports a marked contrast from daily peak temperatures, with an average nighttime reading of 43.7°F (6.5°C).

Humidity

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

Rainfall

In Mammoth, in August, during 12.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Mammoth, during the entire year, the rain falls for 109.2 days and collects up to 23.15" (588mm) of precipitation.

Snowfall

The only month without snowfall is August.

Daylight

The average length of the day in August in Mammoth is 14h and 1min.
On the first day of August in Mammoth, sunrise is at 6:09 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:01 pm MDT.

Sunshine

The average sunshine in August in Mammoth is 11.5h.

UV index

In Mammoth, the average daily maximum UV index in August is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, a regular UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Mammoth?

Mammoth in August has an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 43.7°F (6.5°C).

What is the least humid month in Mammoth?

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

What is the average humidity in August in Mammoth?

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

How many days does it rain in August in Mammoth?

In Mammoth, Wyoming, in August, it is raining for 12.3 days, with typically 1.18" (30mm) of accumulated precipitation.

When it does not snow in Mammoth?

The only month without snowfall in Mammoth is August.

Does it snow in Mammoth in August?

In August, in Mammoth, Wyoming, it doesn't snow. July is the latest month when it typically snows.

How many hours of daylight does Mammoth have in August?

In Mammoth, the average day length in August is 14h and 1min.

When is the sunrise / sunset in August in Mammoth?

On the first day of August, sunrise is at 6:09 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:01 pm MDT.

How long on average sun shines in August in Mammoth?

In August, the average sunshine duration is 11.5h.

What is the UV index intensity in August in Mammoth?

In August, the average daily maximum UV index in Mammoth, Wyoming, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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 August
Mammoth, WY

Average temperature in August - Mammoth, WY
  • Average high temperature in August: 71.4°F

The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).

  • Average low temperature in August: 43.7°F

The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).

Average pressure in August
Mammoth, WY

Average pressure in August - Mammoth, WY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Mammoth, WY

Average wind speed in August - Mammoth, WY
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in August
Mammoth, WY

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

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).

Average rainfall in August
Mammoth, WY

Average rainfall in August - Mammoth, WY
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").

Average rainfall days in August
Mammoth, WY

Average rainfall days in August - Mammoth, WY
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).

Average snowfall in August
Mammoth, WY

Average snowfall in August - Mammoth, WY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").

Average snowfall days in August
Mammoth, WY

Average snowfall days in August - Mammoth, WY
  • Average snowfall days in August: 0.2 days

The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).

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

Average daylight in August / Average sunshine in August - Mammoth, WY
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).

Average sunshine days in August
Mammoth, WY

Average sunshine days in August - Mammoth, WY
  • Average sunshine days in August: 13.9 days

The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).

Average UV index in August
Mammoth, WY

Average UV index in August - Mammoth, WY
  • Average UV index in August: 3

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 August
Mammoth, WY

Average cloud cover in August - Mammoth, WY
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in August
Mammoth, WY

Average visibility in August - Mammoth, 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).

Mammoth, Wyoming, USA

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