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 start of May brings a shift in the average high-temperature, increasing from April's wintry 40.3°F (4.6°C) to a cool 51.4°F (10.8°C). Altonah throughout May, records an average low-temperature of 30.6°F (-0.8°C).Humidity
In May, the average relative humidity is 60%.Rainfall
May is the month with the most rainfall. Rain falls for 12.1 days and accumulates 1.61" (41mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Altonah, in May, snow falls for 8.3 days, with typically accumulated 6.42" (163mm) of snow. In Altonah, during the entire year, snow falls for 87 days and aggregates up to 51.73" (1314mm) of snow.Daylight
In May, the average length of the day is 14h and 26min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:53 am and sunset at 8:44 pm MDT.
Sunshine
The average sunshine in May is 10.9h.UV index
The average daily maximum UV index in May is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 3 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
What is the rainiest month in Altonah?
How much does it rain in May?
How many days does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May in Altonah?
How long on average sun shines in May in Altonah?
What is the UV index reading in May in Altonah?
Average temperature in May
Altonah, UT
- Average high temperature in May: 51.4°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in May: 30.6°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in May
Altonah, UT
- Average pressure in May: 29.88"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
Altonah, UT
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in May
Altonah, UT
- Average humidity in May: 60%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are June and July (44%).
Average rainfall in May
Altonah, UT
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Altonah, UT
- Average rainfall days in May: 12.1 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is November (3.4 days).
Average snowfall in May
Altonah, UT
- Average snowfall in May: 6.42"
The month with the highest snowfall is March (10.24").
The months with the least snowfall are July and August (0").
Average snowfall days in May
Altonah, UT
- Average snowfall days in May: 8.3 days
The month with the highest number of snowfall days is March (13.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in May /
Average sunshine in May
Altonah, UT
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 10h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in May
Altonah, UT
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in May
Altonah, UT
- 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, April, October, November and December (UV index 2).
Average cloud cover in May
Altonah, UT
- Average cloud cover in May: 25
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 13).
Average visibility in May
Altonah, UT
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Altonah, Utah, USA
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