August weather forecast
Rock Springs, WY

Weather in August

August, the last month of the summer in Rock Springs, is also a moderately hot month, with an average temperature ranging between max 79.3°F (26.3°C) and min 58.6°F (14.8°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still moderately hot 79.3°F (26.3°C). The average low-temperature, in Rock Springs, Wyoming, is 58.6°F (14.8°C).

Humidity

July and August, with an average relative humidity of 31%, are the least humid months.

Rainfall

In Rock Springs, during August, the rain falls for 7.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Rock Springs, there are 93.5 rainfall days, and 10.31" (262mm) of precipitation is accumulated.

Snowfall

In Rock Springs, Wyoming, snow does not fall in July and August.

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:34 pm. On the last day of August, in Rock Springs, sunrise is at 6:42 am and sunset at 7:51 pm MDT.

Sunshine

The months with the most sunshine in Rock Springs are July and August, with an average of 11.8h of sunshine.

UV index

The average daily maximum UV index in August in Rock Springs is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in August interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Rock Springs?

In August, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 58.6°F (14.8°C).

What are the least humid months in Rock Springs?

July and August, with an average relative humidity of 31%, are the least humid months in Rock Springs, Wyoming.

What is the average humidity in August in Rock Springs?

The average relative humidity in August is 31%.

How much does it rain in Rock Springs in August?

In August, in Rock Springs, the rain falls for 7.5 days. Throughout August, 0.55" (14mm) of precipitation is accumulated.

When it does not snow in Rock Springs?

July and August are months without snowfall.

Does it snow in Rock Springs in August?

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

What is the average length of the day in August in Rock Springs?

In August, the average day length in Rock Springs is 13h and 47min.

When are sunrise and sunset in August in Rock Springs?

On the first day of August in Rock Springs, sunrise is at 6:11 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:51 pm MDT.

What is the month with the most sunshine in Rock Springs?

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

How long on average sun shines in August in Rock Springs?

In Rock Springs, the average sunshine duration in August is 11.8h.

What is the UV index intensity in August in Rock Springs?

In Rock Springs, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Rock Springs, WY

Average temperature in August - Rock Springs, WY
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in August: 58.6°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in August
Rock Springs, WY

Average pressure in August - Rock Springs, WY
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Rock Springs, WY

Average wind speed in August - Rock Springs, WY
  • Average wind speed in August: 8.7mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in August
Rock Springs, WY

Average humidity in August - Rock Springs, WY
  • Average humidity in August: 31%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).

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Average rainfall in August
Rock Springs, WY

Average rainfall in August - Rock Springs, WY
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").

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Average rainfall days in August
Rock Springs, WY

Average rainfall days in August - Rock Springs, WY
  • Average rainfall days in August: 7.5 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).

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Average snowfall in August
Rock Springs, WY

Average snowfall in August - Rock Springs, WY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").

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Average snowfall days in August
Rock Springs, WY

Average snowfall days in August - Rock Springs, WY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in August /
Average sunshine in August
Rock Springs, WY

Average daylight in August / Average sunshine in August - Rock Springs, WY
  • Average daylight in August: 13h and 47min

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in August: 11h and 48min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).

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Average sunshine days in August
Rock Springs, WY

Average sunshine days in August - Rock Springs, WY
  • Average sunshine days in August: 18.7 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).

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Average UV index in August
Rock Springs, WY

Average UV index in August - Rock Springs, 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).

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Average cloud cover in August
Rock Springs, WY

Average cloud cover in August - Rock Springs, WY
  • Average cloud cover in August: 13

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in August
Rock Springs, WY

Average visibility in August - Rock Springs, WY
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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