December weather forecastBartley, NE
December
Weather in December
The first month of the winter, December, is still a cold month in Bartley, Nebraska, with an average temperature fluctuating between 39.4°F (4.1°C) and 23.9°F (-4.5°C).Temperature
During the coldest month, December, temperatures average a high of 39.4°F (4.1°C) and a low of 23.9°F (-4.5°C).Humidity
In Bartley, the average relative humidity in December is 67%.Rainfall
In Bartley, during December, the rain falls for 2.9 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 103 rainfall days, and 15.94" (405mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bartley are January through May, October through December. In December, in Bartley, Nebraska, it is snowing for 5 days. Throughout December, 1.57" (40mm) of snow is accumulated. Throughout the year, there are 23.9 snowfall days, and 9.88" (251mm) of snow is accumulated.Daylight
The month with the shortest days in Bartley is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:45 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:25 pm CST.
Sunshine
In Bartley, the average sunshine in December is 6.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bartley, NE
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Bartley, NE
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Bartley, NE
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in December
Bartley, NE
- Average humidity in December: 67%
The month with the highest relative humidity is January (68%).
The months with the lowest relative humidity are July and October (54%).
Average rainfall in December
Bartley, NE
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Bartley, NE
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
Bartley, NE
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bartley, NE
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bartley, NE
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in December
Bartley, NE
- Average sunshine days in December: 23.7 days
The months with the most sunshine days are January and November (24.3 days).
The month with the least sunshine days is August (13.1 days).
Average UV index in December
Bartley, NE
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Bartley, NE
- Average cloud cover in December: 32
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in December
Bartley, 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).
