May weather forecastMercer, ND
May
Weather in May
The last month of the spring, May, is a comfortable month in Mercer, North Dakota, with an average temperature varying between 64.2°F (17.9°C) and 46.4°F (8°C).Temperature
In Mercer, stepping into May brings a temperature increase, moving up from April's cool 50.5°F (10.3°C) to an enjoyable 64.2°F (17.9°C). Mercer's temperature in May lowers to a consistent average of 46.4°F (8°C) during the nights.Humidity
The average relative humidity in May is 61%.Rainfall
In May, in Mercer, the rain falls for 14.2 days. Throughout May, 1.77" (45mm) of precipitation is accumulated. Throughout the year, in Mercer, North Dakota, there are 100.5 rainfall days, and 15.2" (386mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Mercer aggregates 0.2" (5mm) of snow. Throughout the year, in Mercer, there are 72.6 snowfall days, and 21.14" (537mm) of snow is accumulated.Daylight
The average length of the day in May is 15h and 8min.On the first day of the month, sunrise is at 6:24 am and sunset at 8:55 pm. On the last day of May, in Mercer, sunrise is at 5:49 am and sunset at 9:31 pm CDT.
Sunshine
In May, the average sunshine in Mercer is 9.6h.UV index
In Mercer, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mercer, ND
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in May: 46.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in May
Mercer, ND
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Mercer, ND
- Average wind speed in May: 10.6mph
The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in May
Mercer, ND
- Average humidity in May: 61%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (55%).
Average rainfall in May
Mercer, ND
- Average rainfall in May: 1.77"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in May
Mercer, ND
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in May
Mercer, ND
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mercer, ND
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Mercer, ND
- Average daylight in May: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Mercer, ND
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in May
Mercer, 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 and December (UV index 1).
Average cloud cover in May
Mercer, ND
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in May
Mercer, 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).
