Denver, CO Weather
Denver hourly forecast: next 24 hours
Today's high of 86°F (30°C) is about 4°F (2°C) above the typical September high of 82°F (28°C).
Current conditions in detail
Denver weather tomorrow (Thursday, September 17)
Tomorrow in Denver looks patchy rain nearby, with a high of 86° and an overnight low of 67°. Precipitation chance is modest at 36%. Winds top out near 12 mph, and the UV index reaches 6 (moderate).
Denver 14-day forecast
About the weather in Denver
Denver spends most of the year cold. July, the warmest month, averages 88°F (31°C) by day - a figure many cities in our dataset pass in early spring - while January holds at 41°F (5°C) with 78 wet days a year across the whole calendar.
Denver weather: quick facts
- Hottest month: July - highs near 88°F (31°C)
- Coldest month: January - highs near 41°F (5°C)
- Decade extremes (2015-2024): 101°F (38°C) high · -34°F (-36°C) low
- Wettest month: May (13 rainy days) · Sunniest: July (12.8 h sun/day)
- Climate type: semi-arid
- Annual swing: 26°C between the average warmest and coolest month · day to night: 15°C
- Snow: about 26 days a year
- Months averaging 30°C or hotter: 2
- Average humidity: 54%
Temperatures through the year
January bottoms out at 41°F (5°C) in daylight, 15°F (-9°C) after dark. July is the warm end of the year, averaging 88°F (31°C) by day and 60°F (16°C) overnight. The gridded 2015-2024 daily record for this location tops out at 101°F (38°C) and bottoms at -34°F (-36°C) - decade extremes, not all-time station records. Relative humidity averages 54% across the year, drier than all but 9% of the 3496 cities in our dataset.
Rain, sun and snow
May is the wettest month at 3.9 inches (98 mm) over 13 days; December is the driest. July is the brightest month at 12.8 hours of sun a day, against an annual average of 10.3 - sunnier than roughly 75% of the cities we track. Between the average July and the average January lie 26°C, a wider spread than roughly 89% of the cities we track.
Season by season
Spring (March through May)
Through spring, Denver is mild: 60°F (16°C) by day, 33°F (0°C) after dark, and expect showers on roughly 29 days across the season, plus about 9 snowy days. Daylight is generous - around 10.6 hours of sun a day.
Summer (June through August)
Summer in Denver runs 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. Daylight is generous - around 12.5 hours of sun a day.
Fall (September through November)
Fall runs cool rather than cold here - highs near 67°F (19°C), nights near 39°F (4°C), and rain comes on about 14 days over the three months, plus about 6 snowy days.
Winter (December through February)
Winter in Denver is brisk and cold, with daytime highs averaging 43°F (6°C) and nights around 17°F (-8°C); rain comes on about 15 days over the three months, plus about 12 snowy days.
Average temperatures in Denver by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 41° | 15° | 5 | 0.9 in | 7.9 h/day | 63% |
| February | 43° | 15° | 6 | 1.2 in | 9.0 h/day | 61% |
| March | 52° | 24° | 8 | 1.9 in | 10.0 h/day | 58% |
| April | 61° | 33° | 8 | 1.9 in | 10.6 h/day | 53% |
| May | 68° | 42° | 13 | 3.9 in | 11.3 h/day | 60% |
| June | 83° | 55° | 7 | 1.7 in | 12.7 h/day | 49% |
| July | 88° | 60° | 7 | 1.3 in | 12.8 h/day | 47% |
| August | 87° | 59° | 7 | 1.3 in | 12.1 h/day | 47% |
| September | 82° | 52° | 4 | 0.7 in | 11.0 h/day | 43% |
| October | 66° | 38° | 5 | 1.1 in | 9.5 h/day | 50% |
| November | 52° | 26° | 5 | 0.9 in | 8.4 h/day | 56% |
| December | 44° | 20° | 4 | 0.6 in | 7.9 h/day | 56% |