Climateby Month

Cheyenne, WY weather in July

NOAA 1991-2020 normals and daily records · Cheyenne all year

Cheyenne is warm in July, with frequent rain: highs average 84°F and nights drop to about 56°F. Expect about 11 wet days. This is the peak of the warm season in Cheyenne. A good month for most outdoor plans.

Normal high
84°F
Normal low
56°F
Wet days
11
2.1 in total
Muggy days
0
dew point 65°F+

How July changes from start to finish

Normal values at the start and end of July
July 1July 31
Normal high82°F84°F
Normal low54°F57°F
Chance of a wet day32%36%
Sunrise / sunset5:30 am / 8:35 pm5:54 am / 8:17 pm
Daylight15.1 h14.4 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).

A typical July day

  1. 6 am60°Fdew point 47°F
  2. 9 am74°Fdew point 47°F
  3. Noon80°Fdew point 44°F
  4. 3 pm80°Fdew point 44°F
  5. 6 pm75°Fdew point 46°F
  6. 9 pm67°Fdew point 48°F

NOAA hourly normals (local standard time) from Cheyenne (1 mi away); average wind 10 mph; clear or few clouds in 72% of daytime hours, mostly cloudy or overcast in 19%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F8 of 31
  • Hot dayshigh 90°F or more8 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow11 of 31
  • Notable rainat least 0.10 in5 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per July, counted from daily records for each year 1991-2020.

Rain in July

Normal precipitation is 2.1 in; a dry July brings about 1.3 in and a wet one about 2.8 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How July varies from year to year

  • Warmest July, 1991-20202003: average high 91°F
  • Coolest July1992: average high 78°F
  • Wettest July2011: 5.6 in
  • Driest July2008: 0.4 in
  • Highest reading98°F (July 20, 2005)
  • Lowest reading40°F (July 4, 1997)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

July compared with June and August

JuneJulyAugust
Normal high77°F84°F82°F
Normal low49°F56°F54°F
Wet days111110
Comfortable days16810
Daylight15.1 h14.8 h13.8 h

Highs change by +7°F from June and -2°F into August.

Nearby alternatives in July

How Cheyenne ranks in July

  • Normal high252nd warmest of 378 cities; 3rd of 4 in Wyoming
  • Wet days250th driest of 378
  • Comfortable days74th most of 340

What to pack for Cheyenne in July

  • Layers – afternoons near 84°F but nights near 56°F
  • A rain jacket or umbrella – rain on about 11 days
  • Sunglasses and sunscreen – about 14.8 hours of daylight and highs near 84°F

Heating and cooling

July has 17 heating degree days and 175 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How hot is Cheyenne in July?

The normal high is 84°F and the normal low is 56°F. From 1991 to 2020 the hottest July reading was 98°F (most recently on July 20, 2005).

Does it rain a lot in Cheyenne in July?

About 11 days in July have at least 0.01 in of precipitation, and the normal total is 2.1 in. The wettest July in 1991-2020 was in 2011 (5.6 in); the driest was in 2008 (0.4 in).

Is July a good time to visit Cheyenne?

July ranks 6th of 12 months on our comfort score for Cheyenne (60 out of 100). It has about 8 comfortable days and about 8 days at 90°F or hotter. The best months are May and June.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Cheyenne (USW00024018), 1.1 mi NE of the city center, 6,128 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Cheyenne Airport (725640-24018), 1.4 mi NNE of the city center, 6,118 ft . Hourly observations, 1991-2020.