May weather forecastHerman, ID
May
Weather in May
May, the last month of the spring in Herman, is a refreshing month, with an average temperature varying between 31.3°F (-0.4°C) and 55.4°F (13°C).Temperature
May's arrival brings a change in high-temperatures, moving from a cold 42.1°F (5.6°C) in April to a mild 55.4°F (13°C). Herman's nights in May are distinguished by a pronounced temperature shift from the day, with an average low of 31.3°F (-0.4°C).Humidity
The average relative humidity in May is 70%.Rainfall
In Herman, Idaho, in May, during 17.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Herman, during the entire year, the rain falls for 127 days and collects up to 24.29" (617mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Herman, in May, snow falls for 4.1 days, with typically accumulated 2.87" (73mm) of snow. Throughout the year, there are 126.6 snowfall days, and 110.28" (2801mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 41min.On the first day of May, sunrise is at 6:17 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:58 pm MDT.
Sunshine
In May, the average sunshine is 10.1h.UV index
In Herman, the average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 during May translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Herman, ID
- Average high temperature in May: 55.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).
- Average low temperature in May: 31.3°F
The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in May
Herman, ID
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Herman, ID
- Average wind speed in May: 5mph
The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in May
Herman, ID
- Average humidity in May: 70%
The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).
Average rainfall in May
Herman, ID
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in May
Herman, ID
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in May
Herman, ID
- Average snowfall in May: 2.87"
The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Herman, ID
- Average snowfall days in May: 4.1 days
The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Herman, ID
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 10h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in May
Herman, ID
- Average sunshine days in May: 7.8 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).
Average UV index in May
Herman, ID
- Average UV index in May: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in May
Herman, ID
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in May
Herman, 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, February and December (3mi).
