May weather forecastBig Horn, WY
May
Weather in May
May, the last month of the spring in Big Horn, is a moderate month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 57.2°F (14°C).Temperature
The beginning of May signals a rise in the average high-temperature, moving from a frosty 47.1°F (8.4°C) in April to a mild 57.2°F (14°C). Throughout May nights, Big Horn experiences a consistent temperature average of 39.4°F (4.1°C).Humidity
The average relative humidity in May is 67%.Rainfall
The month with the most rainfall is May, when the rain falls for 22.3 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
Months with snowfall in Big Horn, Wyoming, are January through May, September through December. May is the last month it regularly snows. During 2 snowfall days, in May, Big Horn aggregates 2.17" (55mm) of snow. In Big Horn, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.Daylight
The average length of the day in May in Big Horn, Wyoming, is 14h and 50min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of May, in Big Horn, sunrise is at 5:25 am and sunset at 8:45 pm MDT.
Sunshine
In May, the average sunshine is 10.5h.UV index
In Big Horn, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Big Horn, WY
- Average high temperature in May: 57.2°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
- Average low temperature in May: 39.4°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in May
Big Horn, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Big Horn, WY
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in May
Big Horn, WY
- Average humidity in May: 67%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Big Horn, WY
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in May
Big Horn, WY
- Average rainfall days in May: 22.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in May
Big Horn, WY
- Average snowfall in May: 2.17"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Big Horn, WY
- Average snowfall days in May: 2 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Big Horn, WY
- Average daylight in May: 14h and 48min
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: 10h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in May
Big Horn, WY
- Average sunshine days in May: 5.8 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in May
Big Horn, 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
Big Horn, WY
- Average cloud cover in May: 33
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in May
Big Horn, 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).
