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
As December arrives, a noticeable drop in the average high-temperature is witnessed, moving from a wintry 37.4°F (3°C) in November to a subzero cold 21.2°F (-6°C). During the nights in December, the temperature averages to an extreme cold 10.2°F (-12.1°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Sydney, North Dakota, in December, during 2.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Sydney, during the entire year, the rain falls for 96.6 days and collects up to 16.77" (426mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 13.3 days and typically aggregates up to 4.69" (119mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 7:59 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 4:57 pm CST.
Sunshine
The average sunshine in December is 3.7h.UV index
In Sydney, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December in Sydney?
When does it snow the most in Sydney?
How much does it snow in December?
What is the month with the shortest days in Sydney?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Sydney have in December?
What is the UV index reading in December in Sydney?
Average temperature in December
Sydney, ND
- Average high temperature in December: 21.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (17.8°F).
- Average low temperature in December: 10.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (3.6°F).
Average pressure in December
Sydney, 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
Sydney, ND
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is October (11.2mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Sydney, ND
- Average humidity in December: 88%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Sydney, ND
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is June (2.95").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Sydney, ND
- Average rainfall days in December: 2.3 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in December
Sydney, ND
- Average snowfall in December: 4.69"
The month with the highest snowfall is December (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sydney, ND
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is December (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sydney, 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 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Sydney, ND
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (12 days).
Average UV index in December
Sydney, ND
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in December
Sydney, ND
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 24).
Average visibility in December
Sydney, 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).
Sydney, North Dakota, USA
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