Air Quality Alert
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Action Day for Multiple Pollutants.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Wednesday August 0…
Air Quality Alert
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Action Day for Multiple Pollutants.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Wednesday August 0…
Tomorrow in Denver looks
sunny, with a high of 100°
and an overnight low of 72°.
Rain is unlikely (0% chance).
Winds top out near 12 mph,
and the UV index reaches 10 (very high).
Weather in Denver is shaped by its semi-arid climate - expect big day-to-night temperature swings and modest rainfall. July afternoons typically reach 88°F (31°C), while January highs hover near 41°F (5°C). Annual precipitation averages 17.5 inches (444 mm) over about 78 rainy days.
Denver weather: quick facts
Hottest month: July - highs near 88°F (31°C)
Coldest month: January - highs near 41°F (5°C)
Record high: 101°F (38°C) · Record low: -34°F (-36°C) (2015–2024)
Wettest month: May (13 rainy days) · Sunniest: July (12.8 h sun/day)
Climate type:semi-arid - big day-to-night temperature swings and modest rainfall
Snow: about 26 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 88°F (31°C) and overnight lows stay near 60°F (16°C). The coolest month is January, with typical highs of 41°F (5°C) and lows around 15°F (-9°C). Based on 2015–2024 weather data, temperatures have reached as high as 101°F (38°C) and dropped as low as -34°F (-36°C).
Rain, sun and snow
May is usually the wettest month. It brings about 3.9 inches (98 mm) of rain over 13 days, while December is the driest. July brings the most sunshine, averaging 12.8 hours of sun a day. Snow falls on about 26 days in a typical year, mostly from October through May.
Season by season
Spring (March through May)
Spring in Denver stays on the cool side of mild, with daytime highs averaging 60°F (16°C) and nights around 33°F (0°C); expect showers on roughly 29 days across the season, plus around 9 snowy days.
Summer (June through August)
Summer in Denver is hot, with daytime highs averaging 86°F (30°C) and nights around 58°F (14°C); expect showers on roughly 21 days across the season.
Fall (September through November)
Fall in Denver stays on the cool side of mild, with daytime highs averaging 67°F (19°C) and nights around 39°F (4°C); rain falls on about 14 days over the three months, plus around 6 snowy days.
Winter (December through February)
Winter in Denver is chilly, with daytime highs averaging 43°F (6°C) and nights around 17°F (-8°C); rain falls on about 15 days over the three months, plus around 12 snowy days.
Average temperatures in Denver by month
Monthly averages for Denver based on 2015–2024 weather data.
July is the hottest month in Denver, with average highs of 88°F (31°C) and overnight lows near 60°F (16°C). In the past decade the temperature has peaked at 101°F (38°C).
What is the coldest month in Denver?
January is the coldest month, with highs averaging 41°F (5°C) and lows around 15°F (-9°C). The lowest reading in recent years was -34°F (-36°C).
What is the rainiest month in Denver?
May is typically the wettest month, averaging 3.9 inches (98 mm) of precipitation across about 13 days. December is usually the driest.
Does it snow in Denver?
Yes. Denver averages about 26 days of snowfall a year, concentrated October through May.
What is the best time to visit Denver?
The best time to visit Denver is generally September to October and April, when temperatures are at their most comfortable before or after the peak heat. Daytime temperatures in that window typically sit near 73°F (23°C).
How sunny is Denver?
Denver averages 10.3 hours of sunshine per day across the year. July is the sunniest month at about 12.8 hours of sun a day.
Is Denver humid?
Relative humidity in Denver averages about 54% over the year, which feels dry. The most comfortable months tend to fall in the drier part of the year.