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

October 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
October is a beautiful fall month with dry and sunny weather. Although the average temperatures are in the 36°F (2.2°C) to 65°F (18.3°C), the days tend to be warm but nights cool down quickly.
The first snowfall usually occurs in October as the month averages 4" (101.6mm). Fall foliage usually peaks in the second week of October, and the calm days with pleasant temperatures are great for exploring the beauty of nature.
Do not forget to dress in layers in the evenings!

What is the temperature in October in Denver?

The average high-temperature, in October, in Denver, Colorado, is 65.3°F (18.5°C), while the average low-temperature is 36.7°F (2.6°C).

What is the average humidity in October in Denver?

The average relative humidity in October is 49.2%.

How many days does it rain in October in Denver?

In Denver, Colorado, in October, during 5.3 rainfall days, 1" (25.9mm) of precipitation is typically accumulated.

How much does it snow in Denver in October?

In Denver, in October, during 1.8 snowfall days, 4" (101.6mm) of snow is typically accumulated.

How many hours of daylight does Denver have in October?

In Denver, Colorado, the average length of the day in October is 11.1h.

How long on average sun shines in October in Denver?

In Denver, Colorado, the average sunshine in October is 8h.

How high is the UV index in October in Denver?

In October, the average daily maximum UV index in Denver, Colorado, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in October - Denver, CO
  • Average high temperature in October: 18.5°C

The warmest month (with the highest average high temperature) is July (31.9°C).
The month with the lowest average high temperature is December (6°C).

  • Average low temperature in October: 2.6°C

The month with the highest average low temperature is July (14.9°C).
The coldest month (with the lowest average low temperature) is December (-8.3°C).

Average humidity in October - Denver, CO
  • Average humidity in October: 49.2%

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 October - Denver, CO
  • Average rainfall in October: 25.9mm

The wettest month (with the highest rainfall) is July (54.9mm).
The driest month (with the lowest rainfall) is December (8.9mm).

Average rainfall days in October - Denver, CO
  • Average rainfall days in October: 5.3 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 October - Denver, CO
  • Average snowfall in October: 101.6mm

The month with the highest snowfall is March (271.8mm).
Months with the lowest snowfall are June, July and August (0mm).

Average snowfall days in October - Denver, CO
  • Average snowfall days in October: 1.8 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 October / Average sunshine in October - Denver, CO
  • Average daylight in October: 11.1h

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 October: 8h

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 October - Denver, CO
  • Average UV index in October: 5

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).