August weather forecast
Sheridan, WY

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A beautiful and dramatic landscape in the hilly and mountainous region of Sheridan, Wyoming
A beautiful and dramatic landscape in the hilly and mountainous region of Sheridan, Wyoming

Weather in August

August maintains the summer's warmth but starts showing timid signs indicating the upcoming transition to autumn. Despite a slight drop in temperatures towards the end of the month, August exchanges the peak summer heat of July for comfortably warm temperatures. As the month progresses, the warm days gradually give way to cooler evenings. The vast open landscapes of Sheridan become overwhelmingly beautiful during August, painting a unique picture of the countryside. The fewer chances of rainfall also make outdoor recreation more enjoyable and less inhibited.

Temperature

During August, the average high-temperature is a still warm 77.4°F (25.2°C), maintaining a close resemblance to that of the preceding month. In Sheridan, August is marked by an average low-temperature of 56.1°F (13.4°C).

Humidity

The least humid month is August, with an average relative humidity of 46%.

Rainfall

In Sheridan, during August, the rain falls for 17.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Sheridan, during the entire year, the rain falls for 165.2 days and collects up to 21.22" (539mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

In August, the average length of the day is 14h and 0min.
On the first day of August, sunrise is at 5:54 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:45 pm MDT.

Sunshine

In August, the average sunshine is 11.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 77.4°F (25.2°C) and a low-temperature of 56.1°F (13.4°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 46%.

What is the average humidity in August?

In Sheridan, the average relative humidity in August is 46%.

How much does it rain in August?

In Sheridan, in August, it is raining for 17.3 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow?

June through August are months without snowfall in Sheridan.

Does it snow in August?

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

How many hours of daylight does Sheridan have in August?

In Sheridan, the average day length in August is 14h and 0min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:54 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:45 pm MDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.7h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index 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
Sheridan, WY

Average temperature in August - Sheridan, WY
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).

  • Average low temperature in August: 56.1°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

Average pressure in August
Sheridan, WY

Average pressure in August - Sheridan, WY
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Sheridan, WY

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

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in August
Sheridan, WY

Average humidity in August - Sheridan, WY
  • Average humidity in August: 46%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).

Average rainfall in August
Sheridan, WY

Average rainfall in August - Sheridan, WY
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").

Average rainfall days in August
Sheridan, WY

Average rainfall days in August - Sheridan, WY
  • Average rainfall days in August: 17.3 days

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in August
Sheridan, WY

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

The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Sheridan, WY

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

The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

Average sunshine days in August
Sheridan, WY

Average sunshine days in August - Sheridan, WY
  • Average sunshine days in August: 9.2 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).

Average UV index in August
Sheridan, WY

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in August
Sheridan, WY

Average cloud cover in August - Sheridan, WY
  • Average cloud cover in August: 16

The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in August
Sheridan, WY

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

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

Sheridan, Wyoming, USA

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