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
As May arrives in Alton, Utah, a rise in the average high-temperature is observed, moving from a cool 50.2°F (10.1°C) in April to a refreshing 59.9°F (15.5°C). May witnesses an average low-temperature hovering around a cold 39.2°F (4°C).Humidity
In May, the average relative humidity is 42%.Rainfall
In Alton, during May, the rain falls for 8.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 84.8 rainfall days, and 22.05" (560mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. May is the last month it regularly snows. During 3.9 snowfall days, in May, Alton aggregates 4.65" (118mm) of snow. Throughout the year, there are 66.4 snowfall days, and 75.08" (1907mm) of snow is accumulated.Daylight
In Alton, the average length of the day in May is 14h and 12min.On the first day of the month, sunrise is at 6:33 am and sunset at 8:20 pm. On the last day of May, sunrise is at 6:10 am and sunset at 8:44 pm MDT.
Sunshine
The average sunshine in May is 10.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alton in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Alton have in May?
What is the UV index reading in May?
Average temperature in May
Alton, UT
- Average high temperature in May: 59.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (32.9°F).
- Average low temperature in May: 39.2°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is December (17.2°F).
Average pressure in May
Alton, UT
- Average pressure in May: 29.86"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Alton, UT
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in May
Alton, UT
- Average humidity in May: 42%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is June (29%).
Average rainfall in May
Alton, UT
- Average rainfall in May: 1.81"
The wettest month (with the highest rainfall) is July (3.98").
The driest month (with the least rainfall) is June (0.39").
Average rainfall days in May
Alton, UT
- Average rainfall days in May: 8.3 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Alton, UT
- Average snowfall in May: 4.65"
The month with the highest snowfall is December (14.06").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
Alton, UT
- Average snowfall days in May: 3.9 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Alton, UT
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in May
Alton, UT
- Average sunshine days in May: 17.9 days
The month with the most sunshine days is June (23.4 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Alton, UT
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Alton, UT
- Average cloud cover in May: 20
The months with the most cloud cover are February and December (Cloud cover 38).
The month with the least cloud cover is June (Cloud cover 10).
Average visibility in May
Alton, UT
- 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, February and December (5mi).
Alton, Utah, USA
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