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
The average high-temperature increases in May, moving from a cool 51.8°F (11°C) in April to a comfortable 64.9°F (18.3°C). In the month of May, the average low-temperature usually rests at a frosty 46.4°F (8°C).Humidity
In May, the average relative humidity in Napoleon, North Dakota, is 63%.Rainfall
In Napoleon, during May, the rain falls for 15.5 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Napoleon, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.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, Napoleon aggregates 0.2" (5mm) of snow. In Napoleon, North Dakota, during the entire year, snow falls for 73.7 days and aggregates up to 23.11" (587mm) of snow.Daylight
In Napoleon, the average length of the day in May is 15h and 2min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:48 pm. On the last day of May, in Napoleon, sunrise is at 5:49 am and sunset at 9:23 pm CDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Precautions against solar damage are endorsed. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in May in Napoleon?
What is the average humidity in May in Napoleon?
How many days does it rain in May in Napoleon?
What is the last month it snows in Napoleon?
How many hours of daylight does Napoleon have in May?
When is the sunrise / sunset in May in Napoleon?
How long on average sun shines in May in Napoleon?
How high is the UV index in May in Napoleon?
Average temperature in May
Napoleon, ND
- Average high temperature in May: 64.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in May: 46.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in May
Napoleon, ND
- Average pressure in May: 29.92"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
Napoleon, ND
- Average wind speed in May: 10mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in May
Napoleon, ND
- Average humidity in May: 63%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).
Average rainfall in May
Napoleon, ND
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
Napoleon, ND
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in May
Napoleon, ND
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Napoleon, ND
- Average snowfall days in May: 0.4 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
Napoleon, ND
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Napoleon, ND
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).
Average UV index in May
Napoleon, 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, November and December (UV index 1).
Average cloud cover in May
Napoleon, ND
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in May
Napoleon, 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).
Napoleon, North Dakota, USA
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