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
As Border transitions into May, a rise in the average high-temperature is observed, moving from a chilly 44.6°F (7°C) in April to a moderate 56.3°F (13.5°C). In May, Border experiences a significant drop from daily zeniths to an average nighttime temperature of 34.2°F (1.2°C).Humidity
In Border, the average relative humidity in May is 65%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.3 days and typically aggregates up to 2.28" (58mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Border, in May, snow falls for 2.8 days, with typically accumulated 1.93" (49mm) of snow. In Border, Idaho, during the entire year, snow falls for 104.6 days and aggregates up to 63.58" (1615mm) of snow.Daylight
In Border, the average length of the day in May is 14h and 36min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:23 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:53 pm MDT.
Sunshine
In Border, the average sunshine in May is 10.3h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the UV index of 4 transforms into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
How many days does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Border have in May?
What is the UV index intensity in May?
Average temperature in May
Border, ID
- Average high temperature in May: 56.3°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in May: 34.2°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in May
Border, ID
- 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, ID
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is June (6mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in May
Border, ID
- Average humidity in May: 65%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
Border, ID
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in May
Border, ID
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in May
Border, ID
- Average snowfall in May: 1.93"
The month with the highest snowfall is March (12.17").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Border, ID
- Average snowfall days in May: 2.8 days
The month with the highest number of snowfall days is February (20 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Border, 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 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Border, ID
- Average sunshine days in May: 11 days
The month with the most sunshine days is July (18.4 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in May
Border, ID
- 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, ID
- Average cloud cover in May: 31
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Border, ID
- 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).
Border, Idaho, USA
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