May weather forecastDe Graff, MN
May
Weather in May
The last month of the spring, May, is a refreshing month in De Graff, Minnesota, with temperature in the range of an average high of 66.6°F (19.2°C) and an average low of 49.3°F (9.6°C).Temperature
May comes with an increase, with the average high-temperature moving from a cool 52.7°F (11.5°C) in April to a comfortable 66.6°F (19.2°C). De Graff records an average low-temperature of 49.3°F (9.6°C) throughout the month of May.Humidity
The least humid month is May, with an average relative humidity of 67%.Rainfall
In De Graff, in May, during 15.6 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In De Graff, during the entire year, the rain falls for 109.8 days and collects up to 20.47" (520mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in De Graff. During 0.2 snowfall days, in May, De Graff aggregates 0.12" (3mm) of snow. Throughout the year, in De Graff, there are 49.3 snowfall days, and 17.91" (455mm) of snow is accumulated.Daylight
In De Graff, the average length of the day in May is 14h and 54min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:28 pm. On the last day of May, sunrise is at 5:37 am and sunset at 9:01 pm CDT.
Sunshine
In May, the average sunshine in De Graff is 8.8h.UV index
In May, the average daily maximum UV index in De Graff is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
De Graff, MN
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (4.6°F).
Average pressure in May
De Graff, MN
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
De Graff, MN
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.6mph).
Average humidity in May
De Graff, MN
- Average humidity in May: 67%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (67%).
Average rainfall in May
De Graff, MN
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is July (3.43").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in May
De Graff, MN
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (2 days).
Average snowfall in May
De Graff, MN
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
De Graff, MN
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
De Graff, MN
- Average daylight in May: 14h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in May
De Graff, MN
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in May
De Graff, MN
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in May
De Graff, MN
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
De Graff, MN
- 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).





