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
Sibley's transition into December is marked by a clear drop in the average high-temperature, receding from a wintry 36.9°F (2.7°C) in November to a subzero cold 20.3°F (-6.5°C). During December, Sibley witnesses a consistent average low-temperature of 9.7°F (-12.4°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In Sibley, North Dakota, during December, the rain falls for 2.2 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Sibley, during the entire year, the rain falls for 94.8 days and collects up to 14.92" (379mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Sibley. December is the month with the most snowfall. Snow falls for 13.9 days and accumulates 3.11" (79mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:58 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 4:52 pm CST.
Sunshine
In Sibley, North Dakota, the average sunshine in December is 3.4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Sibley. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during December translates into the following guidance:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold is it in Sibley in December?
What is the average humidity in December in Sibley?
How many days does it rain in December in Sibley?
When does it snow the most in Sibley?
How much does it snow in Sibley in December?
What is the month with the shortest days in Sibley?
What is the average length of the day in December in Sibley?
When are sunrise and sunset in December in Sibley?
How many hours of sunshine does Sibley have in December?
What are the months with the lowest UV index in Sibley?
How high is the UV index in December in Sibley?
Average temperature in December
Sibley, ND
- Average high temperature in December: 20.3°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (17.1°F).
- Average low temperature in December: 9.7°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (3.4°F).
Average pressure in December
Sibley, ND
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Sibley, ND
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is October (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in December
Sibley, ND
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Sibley, ND
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Sibley, ND
- Average rainfall days in December: 2.2 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in December
Sibley, ND
- Average snowfall in December: 3.11"
The month with the highest snowfall is December (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sibley, ND
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sibley, ND
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Sibley, ND
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Sibley, 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
Sibley, ND
- Average cloud cover in December: 63
The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Sibley, ND
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Sibley, North Dakota, USA
Weather forecast for your location
2. Allow the app to use your location