December weather forecastCasselton, ND
December
Weather in December
In December, the city of Casselton welcomes winter in full swing. The biting winter cold becomes tangible as temperatures plummet to an average high of only 20.8°F (-6.2°C). Snowflakes decorating window panes and the sight of breath fogging up in the cold air become an everyday occurrence. Despite the icy conditions and short daylight hours, the holiday season invites a feeling of warmth and cheer among the residents. As the year draws to a close, residents celebrate the joys of the holiday season under a clear winter sky, offering a poignant farewell to a year of weather extremes.Temperature
December is characterized by a noticeable reduction in the average high-temperature, falling from an icy 37.6°F (3.1°C) in November to a subzero cold 20.8°F (-6.2°C). Casselton, in December, experiences an average temperature of 10.4°F (-12°C) at night.Humidity
In December, the average relative humidity is 88%.Rainfall
In Casselton, in December, during 3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Casselton, during the entire year, the rain falls for 102.6 days and collects up to 17.8" (452mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 15.6 days and typically aggregates up to 3.74" (95mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of December in Casselton, sunrise is at 7:54 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 4:50 pm CST.
Sunshine
January and December, with an average of 3.5h of sunshine, are months with the least sunshine.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casselton, ND
- Average high temperature in December: 20.8°F
The warmest months (with the highest average high temperature) are July and August (80.8°F).
The month with the lowest average high temperature is January (16.7°F).
- Average low temperature in December: 10.4°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 (3.2°F).
Average pressure in December
Casselton, ND
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Casselton, ND
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in December
Casselton, ND
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (62%).
Average rainfall in December
Casselton, ND
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Casselton, ND
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in December
Casselton, ND
- Average snowfall in December: 3.74"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Casselton, ND
- Average snowfall days in December: 15.6 days
The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Casselton, ND
- Average daylight in December: 8h and 36min
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 36min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Casselton, ND
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Casselton, ND
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Casselton, ND
- Average cloud cover in December: 61
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Casselton, 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).
