December weather forecastCostin, NE
December
Weather in December
December, the first month of the winter in Costin, is also a wintry month, with temperature in the range of an average high of 35.8°F (2.1°C) and an average low of 20.7°F (-6.3°C).Temperature
In Costin, Nebraska, the lowest temperatures are generally noted in December, averaging a high of 35.8°F (2.1°C) and a low of 20.7°F (-6.3°C).Humidity
In Costin, Nebraska, the average relative humidity in December is 68%.Rainfall
In December, the rain falls for 3.5 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 110.2 rainfall days, and 14.8" (376mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Costin, during December, snow falls for 7 days and regularly aggregates up to 2.56" (65mm) of snow. Throughout the year, there are 39.7 snowfall days, and 17.36" (441mm) of snow is accumulated.Daylight
The month with the shortest days in Costin is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:24 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:34 pm MST.
Sunshine
In Costin, the average sunshine in December is 6.4h.UV index
The months with the lowest UV index 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 hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. 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
Costin, NE
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in December
Costin, NE
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Costin, NE
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in December
Costin, NE
- Average humidity in December: 68%
The month with the highest relative humidity is January (69%).
The months with the lowest relative humidity are August and September (47%).
Average rainfall in December
Costin, NE
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Costin, NE
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in December
Costin, NE
- Average snowfall in December: 2.56"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Costin, NE
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Costin, NE
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in December
Costin, NE
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Costin, 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
Costin, 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 August (Cloud cover 17).
Average visibility in December
Costin, 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).





