May weather forecastRoseau, MN
May
Weather in May
May greets Roseau, Minnesota, with the full attributes of spring. The city experiences a considerable jump in temperatures from April, resulting in more frequent outdoor activities. The flowers erupt in a celebration of color, fueled by rainfall levels of 2.13" (54mm). The increase in relative humidity to 67% from 71% in April makes the sunshine-filled days warm and comfortable. May culminates in Roseau’s transition from the frigid confinement of winter to the open, inviting warmth of spring.Temperature
May marks a distinct rise in the average high-temperature in Roseau, Minnesota, ascending from April's chilly 46.2°F (7.9°C) to an enjoyable 61.7°F (16.5°C). May nights observe an average temperature dip to a frosty 44.2°F (6.8°C).Humidity
May is the least humid month, with an average relative humidity of 67%.Rainfall
In May, in Roseau, the rain falls for 14.4 days. Throughout May, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 105.7 rainfall days, and 17.64" (448mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Roseau. During 0.9 snowfall days, in May, Roseau aggregates 0.31" (8mm) of snow. In Roseau, during the entire year, snow falls for 89.4 days and aggregates up to 27.01" (686mm) of snow.Daylight
In Roseau, the average length of the day in May is 15h and 18min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:39 pm. On the last day of May, sunrise is at 5:24 am and sunset at 9:17 pm CDT.
Sunshine
In Roseau, the average sunshine in May is 8.6h.UV index
In Roseau, Minnesota, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during May translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat. 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
Roseau, MN
- Average high temperature in May: 61.7°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (13.5°F).
- Average low temperature in May: 44.2°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in May
Roseau, MN
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Roseau, MN
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is October (9.1mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in May
Roseau, MN
- Average humidity in May: 67%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is May (67%).
Average rainfall in May
Roseau, MN
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in May
Roseau, MN
- Average rainfall days in May: 14.4 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in May
Roseau, MN
- Average snowfall in May: 0.31"
The month with the highest snowfall is December (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Roseau, MN
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Roseau, MN
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in May
Roseau, MN
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is August (17.1 days).
The month with the least sunshine days is June (11 days).
Average UV index in May
Roseau, MN
- 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, November and December (UV index 1).
Average cloud cover in May
Roseau, MN
- Average cloud cover in May: 42
The months with the most cloud cover are January and February (Cloud cover 80).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Roseau, MN
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March and December (4mi).





