August weather forecast
Altamont, WY

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Weather in August

August, the last month of the summer in Altamont, is also a moderately hot month, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 77.5°F (25.3°C).

Temperature

Altamont registers an average high-temperature of a still warm 77.5°F (25.3°C) at the commencement of August, closely related to the preceding month. Altamont reports a marked divergence from daytime peaks throughout August, with lows averaging at a fresh 51.4°F (10.8°C).

Humidity

The least humid month is August, with an average relative humidity of 39%.

Rainfall

August is the month with the least rainfall in Altamont. Rain falls for 7.3 days and accumulates 0.51" (13mm) of precipitation.

Snowfall

July and August are months without snowfall.

Daylight

In Altamont, the average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 6:19 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:56 pm MDT.

Sunshine

With an average of 12h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 5 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Altamont, records 77.5°F (25.3°C), while the low-temperature is 51.4°F (10.8°C).

What is the least humid month?

With an average relative humidity of 39%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 39%.

What is the driest month?

August is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.51" (13mm) of precipitation.

How much does it rain in August?

In Altamont, in August, it is raining for 7.3 days, with typically 0.51" (13mm) of accumulated precipitation.

When it does not snow?

In Altamont, snow does not fall in July and August.

Does it snow in August?

In Altamont, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August?

In August, the average day length is 13h and 46min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:56 pm MDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 12h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August in Altamont is 12h.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in August in Altamont?

In August, the average daily maximum UV index in Altamont is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
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
Altamont, WY

Average temperature in August - Altamont, WY
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.4°F).

  • Average low temperature in August: 51.4°F

The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in August
Altamont, WY

Average pressure in August - Altamont, WY
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Altamont, WY

Average wind speed in August - Altamont, WY
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in August
Altamont, WY

Average humidity in August - Altamont, WY
  • Average humidity in August: 39%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).

Average rainfall in August
Altamont, WY

Average rainfall in August - Altamont, WY
  • Average rainfall in August: 0.51"

The wettest months (with the highest rainfall) are April and May (1.38").
The driest month (with the least rainfall) is August (0.51").

Average rainfall days in August
Altamont, WY

Average rainfall days in August - Altamont, WY
  • Average rainfall days in August: 7.3 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is February (5.5 days).

Average snowfall in August
Altamont, WY

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

The month with the highest snowfall is March (10").
The months with the least snowfall are July and August (0").

Average snowfall days in August
Altamont, WY

Average snowfall days in August - Altamont, WY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

Average sunshine days in August
Altamont, WY

Average sunshine days in August - Altamont, WY
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is April (10.8 days).

Average UV index in August
Altamont, WY

Average UV index in August - Altamont, WY
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).

Average cloud cover in August
Altamont, WY

Average cloud cover in August - Altamont, WY
  • Average cloud cover in August: 10

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).

Average visibility in August
Altamont, WY

Average visibility in August - Altamont, WY
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Altamont, Wyoming, USA

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