August weather forecast
Ouray, CO

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The colorful city of Ouray set between high mountains in Colorado
The colorful city of Ouray set between high mountains in Colorado

Weather in August

August in Ouray sees a slight regression in weather conditions with temperature ranges lowering to between 41.2°F (5.1°C) and 63.1°F (17.3°C), maintaining the summer atmosphere. August continues with significant rainfall recording 4.02" (102mm) of precipitation. Despite being one of the wettest months, August brims with opportunities for mushroom hunting and nature exploration. The month is conducive for late-summer backpacking expeditions in the San Juan Mountains. With optimal daylight of approximately 13.6 hours, landscape photographers get ample opportunities to capture the local scenery.

Temperature

Ouray experiences a minor change to a still enjoyable 63.1°F (17.3°C) in average high-temperature during August, closely reflecting July. Ouray notes a substantial temperature decline from the daytime peaks throughout August, with an average nighttime temperature of 41.2°F (5.1°C).

Humidity

In August, the average relative humidity in Ouray is 62%.

Rainfall

In Ouray, during August, the rain falls for 20.3 days and regularly aggregates up to 4.02" (102mm) of precipitation. Throughout the year, there are 98.2 rainfall days, and 26.65" (677mm) of precipitation is accumulated.

Snowfall

January through June, August through December are months with snowfall. August is the first month it typically snows in Ouray. Throughout August, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Ouray, during the entire year, snow falls for 102 days and aggregates up to 101.02" (2566mm) of snow.

Daylight

In Ouray, the average length of the day in August is 13h and 35min.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:19 pm. On the last day of August, in Ouray, sunrise is at 6:40 am and sunset at 7:41 pm MDT.

Sunshine

In Ouray, Colorado, the average sunshine in August is 11.2h.

UV index

June through August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 4 during August leads to these advisories:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the usual temperature for Ouray in August?

In August, in Ouray, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 41.2°F (5.1°C).

What is the average humidity in August in Ouray?

In Ouray, the average relative humidity in August is 62%.

How many days does it rain in August in Ouray?

In Ouray, in August, during 20.3 rainfall days, 4.02" (102mm) of precipitation is typically accumulated.

When does it start to snow in Ouray?

August is the first month it typically snows in Ouray, Colorado. Throughout August, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Ouray have in August?

In Ouray, Colorado, the average day length in August is 13h and 35min.

What time are sunrise and sunset in August in Ouray?

On the first day of August, sunrise is at 6:14 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:41 pm MDT.

How long on average sun shines in August in Ouray?

The average sunshine duration in August in Ouray is 11.2h.

What is the month with the highest UV index in Ouray?

The months with the highest UV index in Ouray, Colorado, are June through August, with an average maximum UV index of 4.

How high is the UV index in August in Ouray?

The average daily maximum UV index in August in Ouray is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Ouray, CO

Average temperature in August - Ouray, CO
  • Average high temperature in August: 63.1°F

The warmest month (with the highest average high temperature) is July (65.1°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in August: 41.2°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).

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Average pressure in August
Ouray, CO

Average pressure in August - Ouray, CO
  • Average pressure in August: 30.04"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).

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Average wind speed in August
Ouray, CO

Average wind speed in August - Ouray, CO
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is June (7.6mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in August
Ouray, CO

Average humidity in August - Ouray, CO
  • Average humidity in August: 62%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (47%).

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Average rainfall in August
Ouray, CO

Average rainfall in August - Ouray, CO
  • Average rainfall in August: 4.02"

The wettest month (with the highest rainfall) is July (5.39").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in August
Ouray, CO

Average rainfall days in August - Ouray, CO
  • Average rainfall days in August: 20.3 days

The month with the highest number of rainy days is July (23.8 days).
The months with the least rainy days are January and February (1.3 days).

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Average snowfall in August
Ouray, CO

Average snowfall in August - Ouray, CO
  • Average snowfall in August: 0.12"

The month with the highest snowfall is March (16.26").
The month with the least snowfall is July (0").

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Average snowfall days in August
Ouray, CO

Average snowfall days in August - Ouray, CO
  • Average snowfall days in August: 0.2 days

The month with the highest number of snowfall days is April (16.5 days).
The month with the least snowfall days is July (0 days).

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Average daylight in August /
Average sunshine in August
Ouray, CO

Average daylight in August / Average sunshine in August - Ouray, CO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 11h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).

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Average sunshine days in August
Ouray, CO

Average sunshine days in August - Ouray, CO
  • Average sunshine days in August: 7.8 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.3 days).

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Average UV index in August
Ouray, CO

Average UV index in August - Ouray, CO
  • Average UV index in August: 4

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in August
Ouray, CO

Average cloud cover in August - Ouray, CO
  • Average cloud cover in August: 22

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in August
Ouray, CO

Average visibility in August - Ouray, CO
  • Average visibility in August: 6mi

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

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Ouray, Colorado, USA

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