May weather forecastGrantsville, UT
May
Weather in May
May, the last month of the spring in Grantsville, is a refreshing month, with an average temperature fluctuating between 63.1°F (17.3°C) and 45.1°F (7.3°C).Temperature
With the onset of May, Grantsville sees a temperature rise, with the average high-temperature moving from April's fresh 53.8°F (12.1°C) to a comfortable 63.1°F (17.3°C). Grantsville, during the month of May, experiences an average low-temperature of 45.1°F (7.3°C).Humidity
In May, the average relative humidity is 49%.Rainfall
In May, the rain falls for 15.1 days. Throughout May, 2.36" (60mm) of precipitation is accumulated. In Grantsville, during the entire year, the rain falls for 137.7 days and collects up to 20.98" (533mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Grantsville aggregates 0.04" (1mm) of snow. Throughout the year, in Grantsville, there are 53.4 snowfall days, and 40.28" (1023mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 6:27 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:54 pm MDT.
Sunshine
In Grantsville, the average sunshine in May is 10.7h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grantsville, UT
- Average high temperature in May: 63.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 45.1°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Grantsville, UT
- Average pressure in May: 29.89"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
Grantsville, UT
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in May
Grantsville, UT
- Average humidity in May: 49%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (36%).
Average rainfall in May
Grantsville, UT
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in May
Grantsville, UT
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in May
Grantsville, UT
- Average snowfall in May: 0.04"
The month with the highest snowfall is December (9.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grantsville, UT
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is December (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grantsville, UT
- Average daylight in May: 14h and 30min
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 42min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in May
Grantsville, UT
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in May
Grantsville, UT
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Grantsville, UT
- Average cloud cover in May: 27
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in May
Grantsville, 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).
