Cheyenne (WY) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Cheyenne

Cheyenne average temperature chart (Celsius) Cheyenne average temperature chart (Fahrenheit)
Average monthly temperatures in Cheyenne (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.1 4.6 7.1 12.7 18.2 23.8 27.9 26.8 21.7 15.4 8.1 3.5
°F 37.6 40.3 44.8 54.8 64.8 74.8 82.3 80.2 71 59.8 46.6 38.4

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Cheyenne monthly rainfall chart (mm) Cheyenne monthly rainfall chart (inches)
Average monthly rainfall in Cheyenne (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 11 11 28 37 67 57 54 40 34 20 16 11
inches 0.4 0.4 1.1 1.4 2.6 2.3 2.1 1.6 1.3 0.8 0.6 0.4
Rainy days 5 6 9 9 11 10 11 10 8 6 6 6

Average annual rainfall in Cheyenne: 321.033mm (126.4 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Cheyenne

Cheyenne average daily sunshine chart
Average daily sunshine Cheyenne
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.8 7.9 8.7 9.6 9.9 10.9 11.1 10.4 9.4 8.3 6.6 6.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Cheyenne average minimum / maximum temperatures (Celsius) Cheyenne average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Cheyenne (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.8 -8.1 -5.7 -1.2 4.1 8.9 12.3 11.3 6.2 0.6 -5.1 -9.1
Max °C 3.4 4.9 7.5 13 18.6 24.2 28.3 27.2 22.1 15.8 8.5 3.9
Min °F 14.4 17.4 21.8 29.8 39.3 47.9 54.1 52.3 43.1 33.1 22.9 15.7
Max °F 26.2 29.1 33.6 42.6 52.3 61.7 68.5 66.6 57.4 46.8 35.1 27.3

Sea temperature

The graph below shows the average sea temperature.

Cheyenne average sea temperature chart (Celsius) Cheyenne average sea temperature chart (Fahrenheit)
Average sea temperature around Cheyenne in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.8 9.6 9.9 10.7 12 13.9 16.1 18 17.2 14.8 12.4 10.7
°F 49.7 49.3 49.9 51.2 53.6 57 61 64.5 63 58.6 54.3 51.2

Wind speed

The graph below shows the average wind speed.

Cheyenne average winspeed by month (km/h) Cheyenne average winspeed by month (mph)
Average wind speed in Cheyenne (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 23 22 22 22 19 18 16 16 17 18 20 22
mph 14 14 14 14 12 11 10 10 11 11 12 14

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Cheyenne relative humidity averages
Average relative humidity in Cheyenne
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
54% 56% 56% 54% 56% 54% 51% 51% 52% 50% 55% 55%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Cheyenne weather stats

Cheyenne weather statistics
Hottest month: July 27.9°C 82.2°F
Driest month: December 11mm 0.4ins
Sunniest month: September 9.4hrs
Coldest month: January 3.1°C 37.6°F
Wettest month: May 67mm 2.6ins
Warmest sea: August 18°C 64.4°F
Map showing location of Cheyenne (41.13998, -104.82025) Cheyenne map pin © Google

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