Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset brings a rise in the average high-temperature, moving from a cold 39.9°F (4.4°C) in April to a cool 51.4°F (10.8°C). May's nights observe an average temperature of 32.9°F (0.5°C).Humidity
The average relative humidity in May in Sun Valley is 65%.Rainfall
In May, in Sun Valley, the rain falls for 14.8 days. Throughout May, 1.77" (45mm) of precipitation is accumulated. Throughout the year, in Sun Valley, there are 107.7 rainfall days, and 15.63" (397mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Sun Valley, Idaho, during May, snow falls for 2.8 days and regularly aggregates up to 1.46" (37mm) of snow. Throughout the year, there are 88.2 snowfall days, and 69.45" (1764mm) of snow is accumulated.Daylight
In Sun Valley, Idaho, the average length of the day in May is 14h and 45min.On the first day of the month, sunrise is at 6:28 am and sunset at 8:40 pm. On the last day of May, in Sun Valley, Idaho, sunrise is at 5:58 am and sunset at 9:11 pm MDT.
Sunshine
The average sunshine in May in Sun Valley is 10.9h.UV index
In Sun Valley, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In May, a daily maximum UV index of 3 leads to the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Sun Valley?
What is the average humidity in May in Sun Valley?
How many days does it rain in May in Sun Valley?
How many days does it snow in May in Sun Valley?
How many hours of daylight does Sun Valley have in May?
When are sunrise and sunset in May in Sun Valley?
How long on average sun shines in May in Sun Valley?
How high is the UV index in May in Sun Valley?
Average temperature in May
Sun Valley, ID
- Average high temperature in May: 51.4°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (25°F).
- Average low temperature in May: 32.9°F
The months with the highest average low temperature are July and August (50.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in May
Sun Valley, ID
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Sun Valley, ID
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is July (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).
Average humidity in May
Sun Valley, ID
- Average humidity in May: 65%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (37%).
Average rainfall in May
Sun Valley, ID
- Average rainfall in May: 1.77"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in May
Sun Valley, ID
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in May
Sun Valley, ID
- Average snowfall in May: 1.46"
The month with the highest snowfall is February (15").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Sun Valley, ID
- Average snowfall days in May: 2.8 days
The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Sun Valley, ID
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in May
Sun Valley, ID
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is April (11.1 days).
Average UV index in May
Sun Valley, ID
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Sun Valley, ID
- Average cloud cover in May: 26
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in May
Sun Valley, ID
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Sun Valley, Idaho, USA
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