May weather forecastLysite, WY
May
Weather in May
The last month of the spring, May, is an enjoyable month in Lysite, Wyoming, with an average temperature varying between 63°F (17.2°C) and 43.5°F (6.4°C).Temperature
Lysite, Wyoming, sees an increase in average high-temperatures during May, moving from a fresh 52.7°F (11.5°C) in April to a refreshing 63°F (17.2°C). In May, Lysite records an average nighttime temperature of 43.5°F (6.4°C).Humidity
In May, the average relative humidity is 50%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.2 days and typically aggregates up to 2.17" (55mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, Lysite aggregates 0.91" (23mm) of snow. Throughout the year, there are 52.6 snowfall days, and 25.12" (638mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 42min.On the first day of May, sunrise is at 6:02 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:43 pm MDT.
Sunshine
The average sunshine in May is 10.8h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Prioritize safety - Recommendations to avert sunburn are shared. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lysite, WY
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in May: 43.5°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in May
Lysite, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Lysite, WY
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in May
Lysite, WY
- Average humidity in May: 50%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in May
Lysite, WY
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in May
Lysite, WY
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in May
Lysite, WY
- Average snowfall in May: 0.91"
The month with the highest snowfall is April (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Lysite, WY
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is February (9.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Lysite, WY
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 10h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in May
Lysite, WY
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in May
Lysite, WY
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in May
Lysite, WY
- Average cloud cover in May: 27
The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Lysite, 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).





