May weather forecastLander, WY
May
Weather in May
In May, Lander's climate displays distinct spring conditions. Sunny days become more frequent, resulting in a reduction of rainfall and a subsequent increase in sunshine hours. April’s vestiges of high humidity give way to drier air in May. The month's noteworthy feature is a sharp change in temperature, varying from 39°F (3.9°C) to a warm 58.8°F (14.9°C) with sunshine lasting approximately 14.7 hours. Forecasting into June, expect hotter conditions as summer shimmers on the horizon.Temperature
With the onset of May, Lander's average high-temperature sees a rise, moving from April's frosty 47.8°F (8.8°C) to a refreshing 58.8°F (14.9°C). An average temperature of 39°F (3.9°C) is recorded during the nights in May.Humidity
The average relative humidity in May is 54%.Rainfall
In Lander, during May, the rain falls for 12.8 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Lander, during the entire year, the rain falls for 92.3 days and collects up to 9.92" (252mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 2.3 snowfall days, in May, Lander aggregates 3.5" (89mm) of snow. Throughout the year, there are 56.6 snowfall days, and 39.65" (1007mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 40min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:16 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:46 pm MDT.
Sunshine
In Lander, the average sunshine in May is 11.1h.UV index
In Lander, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lander, WY
- Average high temperature in May: 58.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in May: 39°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in May
Lander, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Lander, WY
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Lander, WY
- Average humidity in May: 54%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (34%).
Average rainfall in May
Lander, WY
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Lander, WY
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is November (4.8 days).
Average snowfall in May
Lander, WY
- Average snowfall in May: 3.5"
The month with the highest snowfall is April (8.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Lander, WY
- Average snowfall days in May: 2.3 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Lander, 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 6min).
- 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 and February (Average sunshine: 6h and 54min).
Average sunshine days in May
Lander, WY
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in May
Lander, WY
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Lander, WY
- Average cloud cover in May: 25
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Lander, 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).
