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's arrival signals a distinct temperature shift, escalating from a chilly 46.6°F (8.1°C) in April to a refreshing 61.3°F (16.3°C). Throughout May, a steady low-temperature average of 44.4°F (6.9°C) is noted.Humidity
In May, the average relative humidity is 63%.Rainfall
In May, the rain falls for 14.9 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 110.9 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.7 snowfall days, in May, Saint John aggregates 0.47" (12mm) of snow. In Saint John, during the entire year, snow falls for 86.8 days and aggregates up to 23.78" (604mm) of snow.Daylight
The average length of the day in May is 15h and 19min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:55 pm. On the last day of May, in Saint John, sunrise is at 5:39 am and sunset at 9:33 pm CDT.
Sunshine
In Saint John, the average sunshine in May is 8.9h.UV index
In Saint John, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 in May translates into these instructions:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Saint John have in May?
What is the UV index intensity in May?
Average temperature in May
Saint John, ND
- Average high temperature in May: 61.3°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (14.2°F).
- Average low temperature in May: 44.4°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).
Average pressure in May
Saint John, ND
- Average pressure in May: 29.94"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
Saint John, ND
- Average wind speed in May: 10.3mph
The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in May
Saint John, ND
- Average humidity in May: 63%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).
Average rainfall in May
Saint John, ND
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in May
Saint John, ND
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2 days).
Average snowfall in May
Saint John, ND
- Average snowfall in May: 0.47"
The month with the highest snowfall is November (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint John, ND
- Average snowfall days in May: 1.7 days
The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint John, ND
- Average daylight in May: 15h and 2min
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 5min
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 6min).
Average sunshine days in May
Saint John, ND
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in May
Saint John, ND
- 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 and December (UV index 1).
Average cloud cover in May
Saint John, ND
- Average cloud cover in May: 41
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Saint John, 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).
Saint John, North Dakota, USA
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