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 arrival in Hailey signals an increase in average high-temperatures, moving from April's frosty 44.8°F (7.1°C) to a moderate 55.9°F (13.3°C). Throughout the month of May, the nighttime temperature in Hailey, Idaho, dips to an average of 36.1°F (2.3°C).Humidity
In May, the average relative humidity is 59%.Rainfall
In Hailey, Idaho, in May, during 12.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Hailey, Idaho, there are 85.1 rainfall days, and 12.01" (305mm) of precipitation is accumulated.Snowfall
Months with snowfall in Hailey, Idaho, are January through May, September through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, Hailey aggregates 0.59" (15mm) of snow. In Hailey, during the entire year, snow falls for 72.5 days and aggregates up to 57.05" (1449mm) of snow.Daylight
In May, the average length of the day is 14h and 44min.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, sunrise is at 5:59 am and sunset at 9:11 pm MDT.
Sunshine
In May, the average sunshine is 10.9h.UV index
The average daily maximum UV index in May in Hailey is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the temperature in May in Hailey?
What is the average humidity in May in Hailey?
How many days does it rain in May in Hailey?
What is the last month it snows in Hailey?
How many hours of daylight does Hailey have in May?
What time are sunrise and sunset in May in Hailey?
How long on average sun shines in May in Hailey?
How high is the UV index in May in Hailey?
Average temperature in May
Hailey, ID
- Average high temperature in May: 55.9°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 36.1°F
The months with the highest average low temperature are July and August (52.3°F).
The coldest month (with the lowest average low temperature) is January (9.5°F).
Average pressure in May
Hailey, ID
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Hailey, ID
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is July (7.3mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in May
Hailey, ID
- Average humidity in May: 59%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (34%).
Average rainfall in May
Hailey, ID
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in May
Hailey, ID
- 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 August (3.4 days).
Average snowfall in May
Hailey, ID
- Average snowfall in May: 0.59"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Hailey, ID
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is December (14.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Hailey, 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 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in May
Hailey, ID
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in May
Hailey, ID
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in May
Hailey, ID
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in May
Hailey, 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 and February (4mi).
Hailey, Idaho, USA
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