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
With the onset of May in Idaho Falls, the average high-temperature slightly shifts from April's cool 53.6°F (12°C) to an enjoyable 64.4°F (18°C). Idaho Falls records a significant temperature drop in May nights, lowering to an average of 41.2°F (5.1°C).Humidity
In Idaho Falls, the average relative humidity in May is 52%.Rainfall
The wettest months are May and September, with an average 0.83" (21mm) of rainfall.Snowfall
Months with snowfall in Idaho Falls are January through May, September through December. May is the last month it regularly snows in Idaho Falls. During 0.3 snowfall days, in May, Idaho Falls aggregates 0.59" (15mm) of snow. Throughout the year, in Idaho Falls, there are 54.4 snowfall days, and 16.89" (429mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 44min.On the first day of May in Idaho Falls, sunrise is at 6:19 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 9:01 pm MDT.
Sunshine
The average sunshine in May is 10.8h.UV index
In May, the average daily maximum UV index in Idaho Falls is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Idaho Falls in May?
What is the average humidity in May in Idaho Falls?
What is the wettest month in Idaho Falls?
How many days does it rain in May in Idaho Falls?
What is the last month it snows in Idaho Falls?
How many hours of daylight does Idaho Falls have in May?
When is the sunrise / sunset in May in Idaho Falls?
How long on average sun shines in May in Idaho Falls?
What is the UV index intensity in May in Idaho Falls?
Average temperature in May
Idaho Falls, ID
- Average high temperature in May: 64.4°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in May: 41.2°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in May
Idaho Falls, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Idaho Falls, ID
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).
Average humidity in May
Idaho Falls, ID
- Average humidity in May: 52%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (35%).
Average rainfall in May
Idaho Falls, ID
- Average rainfall in May: 0.83"
The wettest months (with the highest rainfall) are May and September (0.83").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in May
Idaho Falls, ID
- Average rainfall days in May: 10.7 days
The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in May
Idaho Falls, ID
- Average snowfall in May: 0.59"
The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Idaho Falls, ID
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Idaho Falls, 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: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Idaho Falls, ID
- Average sunshine days in May: 18.3 days
The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is February (16.2 days).
Average UV index in May
Idaho Falls, 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, February, March, October, November and December (UV index 2).
Average cloud cover in May
Idaho Falls, ID
- Average cloud cover in May: 25
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Idaho Falls, ID
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Idaho Falls, Idaho, USA
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