May weather forecastArbon, ID
May
Weather in May
The last month of the spring, May, is a comfortable month in Arbon, Idaho, with an average temperature fluctuating between 39.2°F (4°C) and 62.2°F (16.8°C).Temperature
May's onset brings a rise in the average high-temperature, moving from a fresh 51.8°F (11°C) in April to a comfortable 62.2°F (16.8°C). Arbon observes a noteworthy temperature drop from the daily highs during May nights, with a mean temperature of 39.2°F (4°C).Humidity
The average relative humidity in May is 57%.Rainfall
In May, the rain falls for 15.9 days. Throughout May, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 118.3 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
Months with snowfall in Arbon are January through May, September through December. May is the last month it regularly snows in Arbon. During 0.6 snowfall days, in May, Arbon aggregates 0.47" (12mm) of snow. Throughout the year, in Arbon, there are 68.7 snowfall days, and 48.82" (1240mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 38min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:30 pm. On the last day of May, sunrise is at 5:55 am and sunset at 9:00 pm MDT.
Sunshine
In May, the average sunshine in Arbon is 10.8h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 4 in May suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Arbon, ID
- Average high temperature in May: 62.2°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in May: 39.2°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in May
Arbon, ID
- Average pressure in May: 29.9"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
Arbon, ID
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in May
Arbon, ID
- Average humidity in May: 57%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).
Average rainfall in May
Arbon, ID
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in May
Arbon, ID
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Arbon, ID
- Average snowfall in May: 0.47"
The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Arbon, ID
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Arbon, ID
- Average daylight in May: 14h and 36min
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 6min).
- Average sunshine in May: 10h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Arbon, ID
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in May
Arbon, 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 January (UV index 1).
Average cloud cover in May
Arbon, ID
- Average cloud cover in May: 26
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
Arbon, 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).





