May weather forecastCowley, WY
May
Weather in May
The last month of the spring, May, is a refreshing month in Cowley, Wyoming, with an average temperature varying between 44.6°F (7°C) and 62.6°F (17°C).Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's cool 52.3°F (11.3°C) to a refreshing 62.6°F (17°C). Cowley records an average low-temperature of 44.6°F (7°C) throughout the month of May.Humidity
The average relative humidity in May is 51%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 1.57" (40mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.7 snowfall days, in May, Cowley aggregates 0.71" (18mm) of snow. In Cowley, during the entire year, snow falls for 64 days and aggregates up to 19.92" (506mm) of snow.Daylight
The average length of the day in May is 14h and 52min.On the first day of the month, sunrise is at 6:02 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:30 am and sunset at 8:52 pm MDT.
Sunshine
The average sunshine in May is 11.1h.UV index
The average daily maximum UV index in May in Cowley is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cowley, WY
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in May: 44.6°F
The month with the highest average low temperature is July (61°F).
The coldest months (with the lowest average low temperature) are January and February (14.4°F).
Average pressure in May
Cowley, WY
- Average pressure in May: 29.92"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Cowley, WY
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in May
Cowley, WY
- Average humidity in May: 51%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (37%).
Average rainfall in May
Cowley, WY
- Average rainfall in May: 1.57"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in May
Cowley, WY
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in May
Cowley, WY
- Average snowfall in May: 0.71"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Cowley, WY
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Cowley, WY
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 24min).
Average sunshine days in May
Cowley, WY
- Average sunshine days in May: 10.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in May
Cowley, WY
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Cowley, WY
- Average cloud cover in May: 27
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in May
Cowley, WY
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





