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
The average high-temperature in Preston increases in May, moving from a chilly 49.8°F (9.9°C) in April to a refreshing 61.2°F (16.2°C). In Preston, May nights witness a remarkable decline from the day's zenith to an icy 37°F (2.8°C).Humidity
The average relative humidity in May in Preston is 60%.Rainfall
In Preston, in May, it is raining for 16.5 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 127.4 rainfall days, and 18.27" (464mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Preston aggregates 0.39" (10mm) of snow. In Preston, during the entire year, snow falls for 83.8 days and aggregates up to 60.12" (1527mm) of snow.Daylight
In Preston, the average length of the day in May is 14h and 35min.On the first day of May in Preston, Idaho, sunrise is at 6:21 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:56 pm MDT.
Sunshine
In May, the average sunshine in Preston is 10.7h.UV index
In Preston, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, the maximum UV index of 4 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the temperature in May in Preston?
What is the average humidity in May in Preston?
How many days does it rain in May in Preston?
What is the last month it snows in Preston?
How many hours of daylight does Preston have in May?
When is the sunrise / sunset in May in Preston?
How long on average sun shines in May in Preston?
What is the UV index reading in May in Preston?
Average temperature in May
Preston, ID
- Average high temperature in May: 61.2°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in May: 37°F
The month with the highest average low temperature is July (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Preston, ID
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Preston, ID
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in May
Preston, ID
- Average humidity in May: 60%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Preston, ID
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is February (2.24").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Preston, ID
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is April (16.6 days).
The month with the least rainy days is July (5.5 days).
Average snowfall in May
Preston, ID
- Average snowfall in May: 0.39"
The month with the highest snowfall is January (16.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Preston, ID
- Average snowfall days in May: 0.6 days
The months with the highest number of snowfall days are January and February (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Preston, ID
- Average daylight in May: 14h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Preston, ID
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is July (21.8 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in May
Preston, ID
- 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 and December (UV index 1).
Average cloud cover in May
Preston, ID
- Average cloud cover in May: 27
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in May
Preston, 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).
Preston, Idaho, USA
Weather forecast for your location
2. Allow the app to use your location
