May weather forecastBern, ID
May
Weather in May
The last month of the spring, May, is a moderate month in Bern, Idaho, with an average temperature varying between 56.3°F (13.5°C) and 33.3°F (0.7°C).Temperature
Bern's weather in May shows a rise in the average high-temperature, moving up from April's chilly 44.2°F (6.8°C) to a mild 56.3°F (13.5°C). Despite the intense daytime heat, Bern sustains a steady low-temperature average of 33.3°F (0.7°C) during May.Humidity
In May, the average relative humidity is 66%.Rainfall
The month with the most rainfall in Bern is May, when the rain falls for 17.3 days and typically aggregates up to 2.6" (66mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Bern, in May, snow falls for 3.4 days, with typically accumulated 2.56" (65mm) of snow. In Bern, during the entire year, snow falls for 116.1 days and aggregates up to 91.14" (2315mm) of snow.Daylight
The average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:25 pm. On the last day of May, sunrise is at 5:51 am and sunset at 8:55 pm MDT.
Sunshine
In Bern, the average sunshine in May is 10.4h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 4 translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Boost your sun resistance with garments that are densely woven yet spacious. Caution! The reflection of snow can nearly 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
Bern, ID
- Average high temperature in May: 56.3°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in May: 33.3°F
The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in May
Bern, 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
Bern, ID
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in May
Bern, ID
- Average humidity in May: 66%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in May
Bern, ID
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in May
Bern, ID
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in May
Bern, ID
- Average snowfall in May: 2.56"
The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Bern, ID
- Average snowfall days in May: 3.4 days
The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Bern, 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 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Bern, ID
- Average sunshine days in May: 8.8 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in May
Bern, 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
Bern, ID
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in May
Bern, 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).





