May weather forecastPreston, MN
May
Weather in May
The last month of the spring, May, is a refreshing month in Preston, Minnesota, with an average temperature fluctuating between 48.7°F (9.3°C) and 64.9°F (18.3°C).Temperature
As Preston enters May, the average high-temperature increases from the a fresh 52.9°F (11.6°C) of April to an enjoyable 64.9°F (18.3°C). The average low-temperature of 48.7°F (9.3°C) is witnessed in Preston during May.Humidity
In May, the average relative humidity is 79%.Rainfall
In Preston, during May, the rain falls for 16.4 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Preston, Minnesota, during the entire year, the rain falls for 123.3 days and collects up to 19.37" (492mm) of precipitation.Snowfall
Months with snowfall in Preston are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Preston aggregates 0.39" (10mm) of snow. In Preston, during the entire year, snow falls for 51.2 days and aggregates up to 14.49" (368mm) of snow.Daylight
The average length of the day in May is 14h and 44min.On the first day of May in Preston, Minnesota, sunrise is at 5:59 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:42 pm CDT.
Sunshine
The average sunshine in May is 8.3h.UV index
In Preston, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Preston, MN
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in May
Preston, MN
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Preston, MN
- Average wind speed in May: 9.1mph
The windiest months (with the highest average wind speed) are January, February, April and November (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in May
Preston, MN
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Preston, MN
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in May
Preston, MN
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Preston, MN
- Average snowfall in May: 0.39"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Preston, MN
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Preston, MN
- Average daylight in May: 14h and 42min
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: 8h and 18min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
Preston, MN
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in May
Preston, MN
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Preston, MN
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Preston, MN
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).





