Denver
Colorado, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Denver, CO

The colorful sky above the sunlit Denver city, Colorado in autumn, with a water body surrounded by trees, and majestic skyscrapers afar
The colorful sky above the sunlit Denver city, Colorado in autumn, with a water body surrounded by trees, and majestic skyscrapers afar
August is a hot summer month in Denver with average temperatures in the 57°F (13.9°C) to 86°F (30°C). Daylight lasts for 14 hours with plenty of sunshine, although the temperatures seldom go above 90°F (32.2°C). Nights are warm and rarely drop to 40°F (4.4°C).
About 2" (50.8mm) of rain usually occurs in August - sometimes an inch may fall in a day during a storm. Tornadoes are less familiar to the west of Interstate 25, but the eastern parts witness a few thunderstorms. August skies are clear for stargazing on many days.
Light summer clothing is usually sufficient in August.

What is the temperature in August in Denver?

In August, the average high-temperature is 87.3°F (30.7°C), and the average low-temperature is 57.9°F (14.4°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that factores the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in August in Denver?

In Denver, the average relative humidity in August is 49.3%.

How many days does it rain in August in Denver?

In August, in Denver, the rain falls for 8.6 days. Throughout August, 1.7" (42.9mm) of precipitation is accumulated.

Does it snow in Denver in August?

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

When it does not snow in Denver?

In Denver snow does not fall in June through August.

How many hours of daylight does Denver have in August?

In August, the average length of the day in Denver is 13.7h.

How long on average sun shines in August in Denver?

In Denver, Colorado, the average sunshine in August is 9.9h.

What is the UV index intensity in August in Denver?

The average daily maximum UV index in August in Denver, Colorado, is 10. A UV Index value of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in August - Denver, CO
  • Average high temperature in August: 87.2°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in August: 57.9°F

The month with the highest average low temperature is July (58.9°F).
The coldest month (with the lowest average low temperature) is December (17.1°F).

Average humidity in August - Denver, CO
  • Average humidity in August: 49.3%

The month with the highest relative humidity is December (56.6%).
The month with the lowest relative humidity is July (47.8%).

Average rainfall in August - Denver, CO
  • Average rainfall in August: 1.7"

The wettest month (with the highest rainfall) is July (2.2").
Driest months (with the lowest rainfall) are January, February and December (0.4").

Average rainfall days in August - Denver, CO
  • Average rainfall days in August: 8.6 days

The month with the highest number of rainy days is May (9.4 days).
Months with the lowest number of rainy days are January and December (4.1 days).

Average snowfall in August - Denver, CO
  • Average snowfall in August: 0"

The month with the highest snowfall is March (10.7").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in August - Denver, CO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is March (5.8 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average daylight in August / Average sunshine in August - Denver, CO
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 9.9h

Months with most sunshine are June and July (Average sunshine: 10.5h).
The month with least sunshine is December (Average sunshine: 6.3h).

Average UV index in August - Denver, CO
  • Average UV index in August: 10

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 2).