December weather forecastDuncan, NE
December
Weather in December
The first month of the winter, December, is still a cold month in Duncan, Nebraska, with an average temperature fluctuating between 34.3°F (1.3°C) and 21.2°F (-6°C).Temperature
December's onset witnesses a marked shift in the average high-temperature, moving from a chilly 48.7°F (9.3°C) in November to a wintry 34.3°F (1.3°C). Duncan throughout December, records an average low-temperature of 21.2°F (-6°C).Humidity
In Duncan, the average relative humidity in December is 76%.Rainfall
In Duncan, during December, the rain falls for 3.9 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Duncan, during the entire year, the rain falls for 113.1 days and collects up to 19.76" (502mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Duncan. In Duncan, in December, snow falls for 6.4 days, with typically accumulated 2.2" (56mm) of snow. In Duncan, during the entire year, snow falls for 30.4 days and aggregates up to 12.05" (306mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 5:01 pm. On the last day of December, in Duncan, sunrise is at 7:55 am and sunset at 5:10 pm CST.
Sunshine
In December, the average sunshine is 5.2h.UV index
The months with the lowest UV index in Duncan are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during December leads to these advisories:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Duncan, NE
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Duncan, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Duncan, NE
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Duncan, NE
- Average humidity in December: 76%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (63%).
Average rainfall in December
Duncan, NE
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in December
Duncan, NE
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Duncan, NE
- Average snowfall in December: 2.2"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Duncan, NE
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Duncan, NE
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Duncan, NE
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Duncan, NE
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Duncan, NE
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Duncan, NE
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
