Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Napoleon's transition into December marks a considerable drop in the average high-temperature, moving down from an icy 38.7°F (3.7°C) in November to a subzero cold 23.2°F (-4.9°C). Throughout December, the temperature in Napoleon tends to fall to a consistent average low of 11.3°F (-11.5°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In December, the rain falls for 3.6 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 105.9 rainfall days, and 15" (381mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Napoleon. In December, it is snowing for 15.7 days. Throughout December, 3.98" (101mm) of snow is accumulated. Throughout the year, in Napoleon, North Dakota, there are 73.7 snowfall days, and 23.11" (587mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Napoleon.On the first day of the month, sunrise is at 8:03 am and sunset at 4:53 pm. On the last day of December, in Napoleon, sunrise is at 8:22 am and sunset at 5:02 pm CST.
Sunshine
In December, the average sunshine in Napoleon is 4h.UV index
The months with the lowest UV index in Napoleon, North Dakota, are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
How cold is it in Napoleon in December?
What is the average humidity in December in Napoleon?
How many days does it rain in December in Napoleon?
How much does it snow in Napoleon in December?
What is the month with the shortest days in Napoleon?
How many hours of daylight does Napoleon have in December?
What time are sunrise and sunset in December in Napoleon?
How many hours of sunshine does Napoleon have in December?
What is the month with the lowest UV index in Napoleon?
How high is the UV index in December in Napoleon?
Average temperature in December
Napoleon, ND
- Average high temperature in December: 23.2°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 December: 11.3°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 December
Napoleon, ND
- Average pressure in December: 30.14"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 December
Napoleon, ND
- Average wind speed in December: 9.6mph
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 December
Napoleon, ND
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Napoleon, ND
- Average rainfall in December: 0.75"
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 December
Napoleon, ND
- Average rainfall days in December: 3.6 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 December
Napoleon, ND
- Average snowfall in December: 3.98"
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 December
Napoleon, ND
- Average snowfall days in December: 15.7 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 December /
Average sunshine in December
Napoleon, ND
- Average daylight in December: 8h and 4min
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 December: 4h and 0min
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 December
Napoleon, ND
- Average sunshine days in December: 14.1 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 December
Napoleon, ND
- Average UV index in December: 1
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 December
Napoleon, ND
- Average cloud cover in December: 58
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 December
Napoleon, ND
- Average visibility in December: 5mi
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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