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
The arrival of May sees a shift in the average high-temperature, moving from a cool 51.4°F (10.8°C) in April to an enjoyable 63°F (17.2°C). Herbert's average nighttime temperatures present a clear contrast to its daytime highs, measured at a cold 39.7°F (4.3°C) in May.Humidity
In Herbert, the average relative humidity in May is 55%.Rainfall
The months with the most rainfall are April and May, with an average 1.26" (32mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Herbert aggregates 0.67" (17mm) of snow. Throughout the year, there are 84.8 snowfall days, and 31.85" (809mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 45min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:29 pm. On the last day of May, sunrise is at 5:47 am and sunset at 9:01 pm MDT.
Sunshine
In Herbert, the average sunshine in May is 11h.UV index
In Herbert, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 in May translates into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Herbert in May?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Herbert have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Herbert have in May?
What is the UV index intensity in May?
Average temperature in May
Herbert, ID
- Average high temperature in May: 63°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in May: 39.7°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in May
Herbert, ID
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Herbert, ID
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in May
Herbert, ID
- Average humidity in May: 55%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (38%).
Average rainfall in May
Herbert, ID
- Average rainfall in May: 1.26"
The wettest months (with the highest rainfall) are April and May (1.26").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in May
Herbert, ID
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in May
Herbert, ID
- Average snowfall in May: 0.67"
The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Herbert, ID
- Average snowfall days in May: 0.6 days
The months with the highest number of snowfall days are January and February (18.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Herbert, 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: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Herbert, ID
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Herbert, 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 and December (UV index 1).
Average cloud cover in May
Herbert, ID
- Average cloud cover in May: 25
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in May
Herbert, 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).
Herbert, Idaho, USA
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