August weather forecast
Gunnison, CO

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Weather in August

August remains firmly entrenched in summer in Gunnison, though there is a negligible dip from the pinnacle of July's heat. Tastes of the approaching autumn start to creep in as the intensity of the summer sun wanes slightly. Despite this, warmth is not quite ready to surrender its hold, and August remains significant for outdoor activities and travel. Variations in temperature are rarely extreme, but rather provide a slightly cooler respite from the stifling peak of summer. August thus stands as a transitional month: core summer, with a hint of the cooler weather on the horizon.

Temperature

August's average high-temperature stands at a pleasant 73.2°F (22.9°C), showing little deviation from July's 75.6°F (24.2°C). In Gunnison, the nighttime chill during August is a clear shift from the day's highs, with an average of 42.1°F (5.6°C).

Humidity

In August, the average relative humidity is 53%.

Rainfall

In August, the rain falls for 11.1 days. Throughout August, 0.79" (20mm) of precipitation is accumulated. In Gunnison, during the entire year, the rain falls for 83.5 days and collects up to 9.33" (237mm) of precipitation.

Snowfall

January through June, August, October through December are months with snowfall. August is the first month it typically snows. Throughout August, in the average 0.1 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, there are 77.9 snowfall days, and 41.65" (1058mm) of snow is accumulated.

Daylight

In Gunnison, the average length of the day in August is 13h and 37min.
On the first day of August in Gunnison, sunrise is at 6:10 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:38 pm MDT.

Sunshine

In Gunnison, the average sunshine in August is 11.7h.

UV index

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In August, a daily maximum UV index of 4 leads to the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 14, 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 during August is 73.2°F (22.9°C) and the low-temperature is 42.1°F (5.6°C).

What is the average humidity in August?

In August, the average relative humidity is 53%.

How much does it rain in August?

In Gunnison, in August, during 11.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When does it start to snow?

August is the first month it typically snows. Throughout August, in the average 0.1 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in August?

The average day length in August in Gunnison is 13h and 37min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:10 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:38 pm MDT.

How long on average sun shines in August?

The average sunshine duration in August is 11.7h.

How high is the UV index in August?

In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe 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
Gunnison, CO

Average temperature in August - Gunnison, CO
  • Average high temperature in August: 73.2°F

The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in August: 42.1°F

The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (1.9°F).

Average pressure in August
Gunnison, CO

Average pressure in August - Gunnison, CO
  • Average pressure in August: 30.07"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).

Average wind speed in August
Gunnison, CO

Average wind speed in August - Gunnison, CO
  • Average wind speed in August: 4.7mph

The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).

Average humidity in August
Gunnison, CO

Average humidity in August - Gunnison, CO
  • Average humidity in August: 53%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (44%).

Average rainfall in August
Gunnison, CO

Average rainfall in August - Gunnison, CO
  • Average rainfall in August: 0.79"

The wettest month (with the highest rainfall) is July (1.3").
The driest months (with the least rainfall) are September and November (0.55").

Average rainfall days in August
Gunnison, CO

Average rainfall days in August - Gunnison, CO
  • Average rainfall days in August: 11.1 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (2.5 days).

Average snowfall in August
Gunnison, CO

Average snowfall in August - Gunnison, CO
  • Average snowfall in August: 0.31"

The month with the highest snowfall is February (6.97").
The months with the least snowfall are July and September (0").

Average snowfall days in August
Gunnison, CO

Average snowfall days in August - Gunnison, CO
  • Average snowfall days in August: 0.1 days

The month with the highest number of snowfall days is February (12.8 days).
The month with the least snowfall days is July (0 days).

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

Average daylight in August / Average sunshine in August - Gunnison, 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 30min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in August
Gunnison, CO

Average sunshine days in August - Gunnison, CO
  • Average sunshine days in August: 13.2 days

The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (9.7 days).

Average UV index in August
Gunnison, CO

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

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 2).

Average cloud cover in August
Gunnison, CO

Average cloud cover in August - Gunnison, CO
  • Average cloud cover in August: 15

The month with the most cloud cover is February (Cloud cover 35).
The months with the least cloud cover are June and September (Cloud cover 12).

Average visibility in August
Gunnison, CO

Average visibility in August - Gunnison, CO
  • 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).

Gunnison, Colorado, USA

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