Cheyenne
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Cheyenne, WY

A sunny day in the front of the State Capitol building in Cheyenne, Wyoming
A sunny day in the front of the State Capitol building in Cheyenne, Wyoming
Cheyenne is magnificent in May. The temperature rises considerably and falls in the range of 39.2°F (4°C) and 68°F (20°C).
Snowfall is rare, and most days warm up with up to eleven hours of sunshine. There are up to fifteen hours of daylight in May, making the days last twice as long as the nights.
Spring is experienced fully with wild blossoms dotting Cheyenne, making it look like a massive flower garden. The scents fill the air making it fresh and crisp. This period sees most parks and gardens packed with tourists basking in the warm weather.
Rainfall only occurs during the afternoons for an average of twelve days, collecting an average of 2.4" (61mm). Appropriate dressing is required, as well as possessing a precautionary umbrella.

What is the temperature in May in Cheyenne?

In May, in Cheyenne, Wyoming, the average high-temperature is 64.8°F (18.2°C), and the average low-temperature is 40.3°F (4.6°C).

What is the average humidity in May in Cheyenne?

In May, the average relative humidity in Cheyenne, Wyoming, is 55.8%.

How many days does it rain in May in Cheyenne?

In Cheyenne, Wyoming, in May, it is raining for 12.4 days, with typically 2.3" (59.4mm) of accumulated precipitation.

What is the rainiest month in Cheyenne?

Months with the most rainfall are May and June, with an average 2.3" (59.4mm) of precipitation.

What is the last month it snows in Cheyenne?

May is the last month it regularly snows. During 1.8 snowfall days, in May, Cheyenne aggregates 2.3" (58.4mm) of snow.

How many hours of daylight does Cheyenne have in May?

In May, the average length of the day in Cheyenne, Wyoming, is 14.5h.

How many hours of sunshine does Cheyenne have in May?

In Cheyenne, Wyoming, the average sunshine in May is 9.4h.

What is the UV index reading in May in Cheyenne?

In May, the average daily maximum UV index in Cheyenne is 9. A UV Index of 8 to 10 symbolizes a very high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Cheyenne, WY
  • Average high temperature in May: 18.2°C

The warmest month (with the highest average high temperature) is July (28.6°C).
The month with the lowest average high temperature is December (3.4°C).

  • Average low temperature in May: 4.6°C

The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is December (-8.2°C).

Average humidity in May - Cheyenne, WY
  • Average humidity in May: 55.8%

The month with the highest relative humidity is March (56.1%).
The month with the lowest relative humidity is October (50%).

Average rainfall in May - Cheyenne, WY
  • Average rainfall in May: 59.4mm

Wettest months (with the highest rainfall) are May and June (59.4mm).
The driest month (with the lowest rainfall) is January (8.4mm).

Average rainfall days in May - Cheyenne, WY
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is May (12.4 days).
The month with the lowest number of rainy days is January (4.9 days).

Average snowfall in May - Cheyenne, WY
  • Average snowfall in May: 58.4mm

The month with the highest snowfall is March (287mm).
Months with the lowest snowfall are June, July and August (0mm).

Average snowfall days in May - Cheyenne, WY
  • Average snowfall days in May: 1.8 days

The month with the highest number of snowfall days is March (7.8 days).
Months with the lowest number of snowfall days are July and August (0 days).

Average daylight in May / Average sunshine in May - Cheyenne, WY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 9.4h

The month with most sunshine is July (Average sunshine: 10.2h).
The month with least sunshine is December (Average sunshine: 5.7h).

Average UV index in May - Cheyenne, WY
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 1).