Denver Weather in July
July's weather is the hottest of the year for Denver, Colorado, which brings with it more thunderstorms.
This page gives detailed information on the typical July temperature, precipitation, sun, humidity, wind and storms for Denver. The numbers here are historical averages based on climate data gathered in the Denver community of Stapleton.
|90 °F||July average high||32 °C|
|59 °F||July average low||15 °C|
July is Denver's hottest month overall, with temperatures peaking from the 14th to 25th. These dates have daily highs averaging 91 °F (33 °C) and nighttime lows of 60 °F (16 °C).
|17 days||90 °F max. or more (32 °C)|
|18 days||60 °F min. or less (16 °C)|
Nearly every day in July warms to over 80 °F (27 °C) in Denver. The city averages 17 days this month when the thermometer reaches into the 90s °F (over 32 °C). Temperatures above 100 °F (38 °C) can also occur in July.
In some years, the thermometer does cool down to 50 °F (10 °C) or below for a night. But July does not normally get as cold as 40 °F (4 °C).
|2.1 in||total precipitation||54 mm|
|9 days||of rain|
Half the time, Denver receives 0.8 to 2.9 inches (21 to 75 mm) of rainfall in July. One in four years has drier weather, while another one in four is wetter. None of the precipitation falls as snow.
|9 days||clear skies|
The sun's rays reach the ground in Denver during 71 percent of daylight hours on average in July, for a total of 322 hours in the month. Typically on 9 days this month the sky is mainly clear, with at most 30 percent cloud cover.
Sunlight in July at Denver lasts for 14 hours and 38 minutes a day on average. The longest day of the month is the 1st with 14 hours and 56 minutes of daylight. By the end of the month, the days have shortened to 14:15 from sunrise to sunset. These durations can vary by a minute or two from year to year.
|48 %||July average humidity|
The relative humidity in Denver during July usually peaks at 68 percent in the morning then drops to 28 percent by early afternoon. July is the least humid month for Denver.
|Local Time||2 am||5 am||8 am||11 am||2 pm||5 pm||8 pm||11 pm|
|8.3 mph||July wind speed average||13.4 kph|
July is a little less windy than most other months in Denver.
|1 day||rainfall of 0.5 inches (13 mm) or more|
|11 days||with thunderstorms in July|
Denver has more thunderstorms during July than any other month. About once every two years, an inch (25 mm) or more of rain drenches the city in one day during the month.
The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals.