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 signals a temperature shift, moving from a fresh 52.3°F (11.3°C) in April to a comfortable 63.5°F (17.5°C). In Terreton, a significant divergence from daytime highs is recorded, with average lows of 40.1°F (4.5°C) during May nights.Humidity
In May, the average relative humidity is 54%.Rainfall
May is the month with the most rainfall. Rain falls for 12.8 days and accumulates 1.26" (32mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Terreton aggregates 0.67" (17mm) of snow. In Terreton, during the entire year, snow falls for 79 days and aggregates up to 31.54" (801mm) of snow.Daylight
In May, the average length of the day is 14h and 46min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:33 pm. On the last day of May, sunrise is at 5:50 am and sunset at 9:04 pm MDT.
Sunshine
The average sunshine in May is 10.9h.UV index
In Terreton, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 4 in May translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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?
What is the last month it snows?
How many hours of daylight does Terreton have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Terreton have in May?
What is the UV index reading in May?
Average temperature in May
Terreton, ID
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in May: 40.1°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in May
Terreton, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Terreton, ID
- Average wind speed in May: 7.4mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in May
Terreton, ID
- Average humidity in May: 54%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall in May
Terreton, ID
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in May
Terreton, ID
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall in May
Terreton, ID
- Average snowfall in May: 0.67"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Terreton, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Terreton, ID
- Average daylight in May: 14h and 5min
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: 4h and 42min).
Average sunshine days in May
Terreton, ID
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in May
Terreton, 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
Terreton, ID
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Terreton, 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).
Terreton, Idaho, USA
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