May weather forecastGrafton, ND
May
Weather in May
May heralds the establishment of spring, with floral bloom gracing the cityscapes of Grafton. Lighter apparel starts replacing heavy winter wear as the days continue to warm. A significantly high rainfall volume of 2.01" (51mm) sets in, making May one of the wettest months. The locals revel in the delightful weather change, enhancing the joy of outdoor activities, while the local flora and fauna begin to thrive.Temperature
As May arrives in Grafton, a noticeable rise in the average high-temperature is witnessed, moving from a frosty 48.9°F (9.4°C) in April to a refreshing 64.6°F (18.1°C). Throughout May, the temperature in Grafton, North Dakota, tends to fall to a consistent average low of 47.8°F (8.8°C).Humidity
The average relative humidity in May in Grafton is 62%.Rainfall
In May, the rain falls for 13 days. Throughout May, 2.01" (51mm) of precipitation is accumulated. In Grafton, during the entire year, the rain falls for 97.8 days and collects up to 15.83" (402mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Grafton. May is the last month it regularly snows. During 0.4 snowfall days, in May, Grafton aggregates 0.2" (5mm) of snow. Throughout the year, there are 70.4 snowfall days, and 18.46" (469mm) of snow is accumulated.Daylight
In Grafton, the average length of the day in May is 15h and 15min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:44 pm. On the last day of May, sunrise is at 5:32 am and sunset at 9:22 pm CDT.
Sunshine
In May, the average sunshine in Grafton is 8.9h.UV index
In Grafton, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grafton, ND
- Average high temperature in May: 64.6°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is January (14.7°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in May
Grafton, ND
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Grafton, ND
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is October (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in May
Grafton, ND
- Average humidity in May: 62%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (59%).
Average rainfall in May
Grafton, ND
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is June (2.8").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in May
Grafton, ND
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in May
Grafton, ND
- Average snowfall in May: 0.2"
The month with the highest snowfall is December (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grafton, ND
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grafton, ND
- Average daylight in May: 15h and 18min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Grafton, ND
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is August (19.8 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in May
Grafton, ND
- 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 and November (UV index 1).
Average cloud cover in May
Grafton, ND
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in May
Grafton, ND
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
