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
Casselton in December showcases a distinct temperature shift, moving from an average high of an icy 37.6°F (3.1°C) in November to a freezing cold 20.8°F (-6.2°C). Casselton, in December, observes a steady average low-temperature of 10.4°F (-12°C).Humidity
In Casselton, the average relative humidity in December is 88%.Rainfall
In Casselton, in December, during 3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, in Casselton, there are 102.6 rainfall days, and 17.8" (452mm) of precipitation is accumulated.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
The month with the shortest days in Casselton is December, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:54 am and sunset at 4:42 pm. On the last day of December, 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 in Casselton.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 1 in December leads to these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How cold is it in Casselton in December?
What is the average humidity in December in Casselton?
How many days does it rain in December in Casselton?
When does it snow the most in Casselton?
How much does it snow in Casselton in December?
What is the month with the shortest days in Casselton?
What is the average length of the day in December in Casselton?
When are sunrise and sunset in December in Casselton?
What is the month with the least sunshine in Casselton?
How long on average sun shines in December in Casselton?
When is the lowest UV index in Casselton?
What is the UV index reading in December in Casselton?
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 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 36min).
- Average sunshine in December: 3h and 3min
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).
Casselton, North Dakota, USA
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