August weather forecast
Dillon, CO

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The brown and golden trees near the iconic Dillon reservoir in Colorado
The brown and golden trees near the iconic Dillon reservoir in Colorado

Weather in August

August continues the dwindling trend of snowfall, with a barely noticeable 0.55" (14mm). August is a month of serene weather and sparkling blue skies in Dillon. The lake waters appear inviting, promising a delightful swim or a peaceful boating experience. With less rain and ample sunshine, picnic enthusiasts can head out without any weather disruptions. However, the temperatures begin to gradually taper towards the month-end, preparing for the onset of fall.

Temperature

On the advent of August, Dillon's average high-temperature exhibits a minor adjustment to a still comfortable 64.9°F (18.3°C) from July's 67.1°F (19.5°C). Despite the significant gap from daytime peaks, Dillon experiences an average low-temperature of 37.8°F (3.2°C) in August.

Humidity

In Dillon, the average relative humidity in August is 59%.

Rainfall

In Dillon, in August, it is raining for 18.1 days, with typically 2.17" (55mm) of accumulated precipitation. In Dillon, during the entire year, the rain falls for 111.5 days and collects up to 23.19" (589mm) of precipitation.

Snowfall

January through December are months with snowfall in Dillon. In Dillon, in August, snow falls for 2.2 days, with typically accumulated 0.55" (14mm) of snow. Throughout the year, in Dillon, there are 149 snowfall days, and 108.54" (2757mm) of snow is accumulated.

Daylight

In August, the average length of the day in Dillon is 13h and 41min.
On the first day of the month, sunrise is at 6:04 am and sunset at 8:16 pm. On the last day of August, in Dillon, sunrise is at 6:32 am and sunset at 7:36 pm MDT.

Sunshine

The average sunshine in August is 11.2h.

UV index

July and August, with an average maximum UV index of 4, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 4 in August translates into this advice:
Take precautions - Protection against sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the temperature in August in Dillon?

In Dillon, in August, the average high-temperature is 64.9°F (18.3°C), and the average low-temperature is 37.8°F (3.2°C).

What is the average humidity in August in Dillon?

The average relative humidity in August in Dillon, Colorado, is 59%.

How many days does it rain in August in Dillon?

In Dillon, in August, during 18.1 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

How many days does it snow in August in Dillon?

In Dillon, Colorado, in August, during 2.2 snowfall days, 0.55" (14mm) of snow is typically accumulated.

What is the average length of the day in August in Dillon?

In Dillon, the average day length in August is 13h and 41min.

What time are sunrise and sunset in August in Dillon?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:16 pm. On the last day of the month, in Dillon, Colorado, sunrise is at 6:32 am and sunset at 7:36 pm MDT.

How long on average sun shines in August in Dillon?

The average sunshine duration in August in Dillon, Colorado, is 11.2h.

When is the highest UV index in Dillon?

The months with the highest UV index in Dillon are July and August, with an average maximum UV index of 4.

What is the UV index reading in August in Dillon?

The average daily maximum UV index in August in Dillon is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Dillon, CO

Average temperature in August - Dillon, CO
  • Average high temperature in August: 64.9°F

The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.5°F).

  • Average low temperature in August: 37.8°F

The month with the highest average low temperature is July (39.7°F).
The coldest month (with the lowest average low temperature) is December (0.9°F).

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Average pressure in August
Dillon, CO

Average pressure in August - Dillon, CO
  • Average pressure in August: 30.05"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is April (29.93"Hg).

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Average wind speed in August
Dillon, CO

Average wind speed in August - Dillon, CO
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in August
Dillon, CO

Average humidity in August - Dillon, CO
  • Average humidity in August: 59%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (53%).

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Average rainfall in August
Dillon, CO

Average rainfall in August - Dillon, CO
  • Average rainfall in August: 2.17"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in August
Dillon, CO

Average rainfall days in August - Dillon, CO
  • Average rainfall days in August: 18.1 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (2.8 days).

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Average snowfall in August
Dillon, CO

Average snowfall in August - Dillon, CO
  • Average snowfall in August: 0.55"

The month with the highest snowfall is April (18.27").
The month with the least snowfall is July (0.47").

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Average snowfall days in August
Dillon, CO

Average snowfall days in August - Dillon, CO
  • Average snowfall days in August: 2.2 days

The month with the highest number of snowfall days is April (21 days).
The month with the least snowfall days is July (1.8 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 11h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

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Average sunshine days in August
Dillon, CO

Average sunshine days in August - Dillon, CO
  • Average sunshine days in August: 7.3 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (5.3 days).

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Average UV index in August
Dillon, CO

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

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

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Average cloud cover in August
Dillon, CO

Average cloud cover in August - Dillon, CO
  • Average cloud cover in August: 23

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 19).

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Average visibility in August
Dillon, CO

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

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

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Dillon, Colorado, USA

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