May weather forecastHanna, WY
May
Weather in May
The last month of the spring, May, is a refreshing month in Hanna, Wyoming, with an average temperature varying between 40.1°F (4.5°C) and 60.4°F (15.8°C).Temperature
May's onset brings a rise in the average high-temperature, moving from a frosty 48.7°F (9.3°C) in April to a refreshing 60.4°F (15.8°C). An average minimum temperature of 40.1°F (4.5°C) marks the month of May.Humidity
In Hanna, the average relative humidity in May is 50%.Rainfall
In Hanna, during May, the rain falls for 12.3 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 80.5 rainfall days, and 8.39" (213mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 2.7 snowfall days, in May, Hanna aggregates 1.14" (29mm) of snow. In Hanna, during the entire year, snow falls for 70.3 days and aggregates up to 29.57" (751mm) of snow.Daylight
In May, the average length of the day is 14h and 34min.On the first day of May, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:34 pm MDT.
Sunshine
The average sunshine in May is 10.8h.UV index
The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hanna, WY
- Average high temperature in May: 60.4°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 (26.4°F).
- Average low temperature in May: 40.1°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in May
Hanna, WY
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Hanna, WY
- Average wind speed in May: 10.7mph
The windiest month (with the highest average wind speed) is November (12.4mph).
The calmest months (with the lowest average wind speed) are July and August (9.3mph).
Average humidity in May
Hanna, WY
- Average humidity in May: 50%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (34%).
Average rainfall in May
Hanna, WY
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in May
Hanna, WY
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Hanna, WY
- Average snowfall in May: 1.14"
The month with the highest snowfall is March (5.47").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Hanna, WY
- Average snowfall days in May: 2.7 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Hanna, WY
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 10h and 48min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 5h and 54min).
Average sunshine days in May
Hanna, WY
- Average sunshine days in May: 15 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is April (12.6 days).
Average UV index in May
Hanna, 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
Hanna, WY
- Average cloud cover in May: 26
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Hanna, WY
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
