Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May signals a significant shift in the average high-temperature, soaring from April's chilly 49.8°F (9.9°C) to a refreshing 64.9°F (18.3°C). During the nights in May, an average low-temperature of 47.8°F (8.8°C) is observed.Humidity
In Grand Forks, the average relative humidity in May is 63%.Rainfall
In Grand Forks, in May, it is raining for 11.7 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 80.3 rainfall days, and 10.47" (266mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Grand Forks. May is the last month it regularly snows in Grand Forks. During 0.3 snowfall days, in May, Grand Forks aggregates 0.08" (2mm) of snow. Throughout the year, there are 54.6 snowfall days, and 11.54" (293mm) of snow is accumulated.Daylight
In Grand Forks, North Dakota, the average length of the day in May is 15h and 11min.On the first day of May in Grand Forks, sunrise is at 6:08 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 9:18 pm CDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 4 transforms into these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. 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
What is the usual temperature for Grand Forks in May?
What is the average humidity in May in Grand Forks?
How many days does it rain in May in Grand Forks?
What is the last month it snows in Grand Forks?
How many hours of daylight does Grand Forks have in May?
When are sunrise and sunset in May in Grand Forks?
How many hours of sunshine does Grand Forks have in May?
What is the UV index reading in May in Grand Forks?
Average temperature in May
Grand Forks, ND
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is January (15.3°F).
- Average low temperature in May: 47.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (0.9°F).
Average pressure in May
Grand Forks, 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 (29.86"Hg).
Average wind speed in May
Grand Forks, 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 (8.2mph).
Average humidity in May
Grand Forks, ND
- Average humidity in May: 63%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (60%).
Average rainfall in May
Grand Forks, ND
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in May
Grand Forks, ND
- Average rainfall days in May: 11.7 days
The month with the highest number of rainy days is June (14.1 days).
The month with the least rainy days is January (0.8 days).
Average snowfall in May
Grand Forks, ND
- Average snowfall in May: 0.08"
The month with the highest snowfall is December (2.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grand Forks, ND
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grand Forks, ND
- Average daylight in May: 15h and 1min
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 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Grand Forks, ND
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is June (13.7 days).
Average UV index in May
Grand Forks, ND
- Average UV index in May: 4
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
Grand Forks, ND
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Grand Forks, 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).
Grand Forks, North Dakota, USA
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