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.

Temperature Weather iconTemperature

88 °F July average high 31 °C
59 °F July average low 15 °C

In most years, Denver averages a daily maximum temperature for July that's between 85 and 91 degrees Fahrenheit (30 to 33 degrees Celsius). The minimum temperature usually falls between 57 and 61 °F (14 to 16 °C).

July is Denver's hottest month overall, with temperatures peaking on the 17th and 18th. These dates have daily highs averaging 88.8 °F (31.6 °C) and lows of 59.5 °F (15.3 °C).

14 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 70 °F (21 °C) in Denver. The city averages 14 days this month when the thermometer reaches into the 90s °F (over 32 °C). Temperatures above 100 °F (38 °C) occur every couple of years.

In some years, the thermometer does dip to 50 °F (10 °C) or below for a night. But July does not normally get as cold as 40 °F (4 °C).

Rainy Weather iconRain

2.1 in total precipitation 52 mm
9 days of rain

Half the time, Denver receives 1 to 2 inches (23 to 63 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.

Sunny Weather iconSun

71 % sunshine
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.

Humid Weather iconHumidity

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 Time2 am5 am8 am11 am2 pm5 pm8 pm11 pm
Humidity % 63 68 51 35 28 34 47 56

Windy Weather iconWind

8.3 mph July wind speed average 13.4 kph

July is a little less windy than most other months in Denver.

Stormy Weather iconStorms

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.

Reference

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

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