December weather forecastWillis, NE
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Willis, Nebraska, with an average temperature fluctuating between 18.7°F (-7.4°C) and 30.7°F (-0.7°C).Temperature
As November gives way to December, the average high-temperature displays a considerable decrease, falling from a chilly 45.9°F (7.7°C) to a subzero cold 30.7°F (-0.7°C). The nighttime temperature dips to 18.7°F (-7.4°C) on average during December.Humidity
In Willis, the average relative humidity in December is 81%.Rainfall
In Willis, in December, during 4.1 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Willis, Nebraska, there are 122 rainfall days, and 21.61" (549mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, in Willis, it is snowing for 8.4 days. Throughout December, 2.56" (65mm) of snow is accumulated. In Willis, during the entire year, snow falls for 38 days and aggregates up to 13.23" (336mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:37 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:03 pm CST.
Sunshine
In Willis, the average sunshine in December is 4.8h.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Willis, NE
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in December
Willis, 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 (29.86"Hg).
Average wind speed in December
Willis, NE
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Willis, NE
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
Willis, NE
- Average rainfall in December: 1.22"
The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Willis, NE
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Willis, NE
- Average snowfall in December: 2.56"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Willis, NE
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Willis, NE
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Willis, NE
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in December
Willis, NE
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Willis, NE
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Willis, 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).
