May weather forecastAtomic City, ID
May
Weather in May
The last month of the spring, May, is a moderate month in Atomic City, Idaho, with an average temperature ranging between max 59.7°F (15.4°C) and min 40.6°F (4.8°C).Temperature
The onset of May marks an increase in the average high-temperature, moving from a frosty 48.9°F (9.4°C) in April to a moderate 59.7°F (15.4°C). Atomic City in May experiences a low-temperature average of 40.6°F (4.8°C).Humidity
The average relative humidity in May is 51%.Rainfall
May is the month with the most rainfall. Rain falls for 15 days and accumulates 1.42" (36mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.3 snowfall days, in May, Atomic City aggregates 0.35" (9mm) of snow. Throughout the year, there are 75.2 snowfall days, and 35.28" (896mm) of snow is accumulated.Daylight
In Atomic City, Idaho, the average length of the day in May is 14h and 43min.On the first day of May, sunrise is at 6:22 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 9:04 pm MDT.
Sunshine
The average sunshine in May is 10.9h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Atomic City, ID
- Average high temperature in May: 59.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is December (25.3°F).
- Average low temperature in May: 40.6°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in May
Atomic City, 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
Atomic City, ID
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is June (8mph).
The calmest month (with the lowest average wind speed) is January (4.7mph).
Average humidity in May
Atomic City, ID
- Average humidity in May: 51%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are July and August (32%).
Average rainfall in May
Atomic City, ID
- Average rainfall in May: 1.42"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Atomic City, ID
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is July (5.9 days).
Average snowfall in May
Atomic City, ID
- Average snowfall in May: 0.35"
The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Atomic City, ID
- Average snowfall days in May: 1.3 days
The month with the highest number of snowfall days is February (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Atomic City, ID
- Average daylight in May: 14h and 42min
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 54min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in May
Atomic City, ID
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
Atomic City, 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
Atomic City, ID
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in May
Atomic City, 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).





