May weather forecastBorder Junction, WY
May
Weather in May
May, the last month of the spring in Border Junction, is a refreshing month, with an average temperature fluctuating between 56.3°F (13.5°C) and 33.3°F (0.7°C).Temperature
In Border Junction, the onset of May comes with an increased average high-temperature, moving from April's frosty 44.2°F (6.8°C) to a refreshing 56.3°F (13.5°C). Throughout May, Border Junction braces for a considerable drop from daytime highs, with an average low-temperature of 33.3°F (0.7°C).Humidity
In May, the average relative humidity is 66%.Rainfall
May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 2.6" (66mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Border Junction, in May, snow falls for 3.4 days, with typically accumulated 2.56" (65mm) of snow. Throughout the year, there are 116.1 snowfall days, and 91.14" (2315mm) of snow is accumulated.Daylight
In Border Junction, the average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 6:18 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:53 pm MDT.
Sunshine
In Border Junction, the average sunshine in May is 10.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Border Junction, WY
- Average high temperature in May: 56.3°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in May: 33.3°F
The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in May
Border Junction, WY
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Border Junction, WY
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in May
Border Junction, WY
- Average humidity in May: 66%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
Border Junction, WY
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in May
Border Junction, WY
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in May
Border Junction, WY
- Average snowfall in May: 2.56"
The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Border Junction, WY
- Average snowfall days in May: 3.4 days
The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Border Junction, 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 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Border Junction, WY
- Average sunshine days in May: 8.8 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in May
Border Junction, WY
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Border Junction, WY
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Border Junction, WY
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).





