May weather forecastStanley, ND
May
Weather in May
In May, people in Stanley, North Dakota start prepping for the upcoming summer season. The weather is pleasant and outdoor activities are plentiful owing to comfortable temperatures and more sunshine. May is a month of showers, providing the city with its second highest average rainfall of 0.71" (18mm). This rain spells prosperity for the natural landscape as the foliage turns into a healthy green cover. Visitors can take advantage of the good weather and embark on a sightseeing tour of Stanley this month.Temperature
May's arrival brings a temperature shift, moving from a fresh 50°F (10°C) in April to a comfortable 64.2°F (17.9°C). Stanley in May anticipates an average nighttime temperature of 46°F (7.8°C).Humidity
In Stanley, the average relative humidity in May is 58%.Rainfall
In May, the rain falls for 8.3 days. Throughout May, 0.71" (18mm) of precipitation is accumulated. In Stanley, during the entire year, the rain falls for 69.9 days and collects up to 6.77" (172mm) of precipitation.Snowfall
Months with snowfall in Stanley are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Stanley aggregates 0.04" (1mm) of snow. Throughout the year, there are 55.5 snowfall days, and 6.46" (164mm) of snow is accumulated.Daylight
In Stanley, the average length of the day in May is 15h and 14min.On the first day of the month, sunrise is at 6:28 am and sunset at 9:04 pm. On the last day of May, sunrise is at 5:52 am and sunset at 9:41 pm CDT.
Sunshine
In May, the average sunshine in Stanley is 9.6h.UV index
The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 4 during May leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Stanley, ND
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in May: 46°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (5.7°F).
Average pressure in May
Stanley, 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 (29.84"Hg).
Average wind speed in May
Stanley, ND
- Average wind speed in May: 10.2mph
The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in May
Stanley, ND
- Average humidity in May: 58%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (52%).
Average rainfall in May
Stanley, ND
- Average rainfall in May: 0.71"
The wettest month (with the highest rainfall) is June (1.18").
The driest months (with the least rainfall) are January and February (0.2").
Average rainfall days in May
Stanley, ND
- Average rainfall days in May: 8.3 days
The month with the highest number of rainy days is June (11.3 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in May
Stanley, ND
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Stanley, ND
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is December (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Stanley, ND
- Average daylight in May: 15h and 12min
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: 9h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in May
Stanley, ND
- Average sunshine days in May: 19.9 days
The month with the most sunshine days is November (22.7 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in May
Stanley, 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, March, October, November and December (UV index 2).
Average cloud cover in May
Stanley, ND
- Average cloud cover in May: 37
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in May
Stanley, ND
- 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).
