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
The transition from November to December brings a clear temperature drop, with average high-temperatures decreasing from a frosty 46.2°F (7.9°C) to a subzero cold 31.6°F (-0.2°C). Throughout the month of December, Seneca reports a steady low-temperature average of 20.7°F (-6.3°C).Humidity
In Seneca, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 2.3 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 103.2 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. December is the month with the most snowfall. Snow falls for 7.1 days and accumulates 2.99" (76mm) 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 7:52 am and sunset at 5:12 pm. On the last day of December, sunrise is at 8:11 am and sunset at 5:21 pm CST.
Sunshine
In Seneca, the average sunshine in December is 5.4h.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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December in Seneca?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days in Seneca?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Seneca, NE
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Seneca, NE
- Average pressure in December: 30.14"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
Seneca, NE
- Average wind speed in December: 12.1mph
The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.7mph).
Average humidity in December
Seneca, NE
- Average humidity in December: 76%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is September (59%).
Average rainfall in December
Seneca, NE
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Seneca, NE
- Average rainfall days in December: 2.3 days
The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are February and December (2.3 days).
Average snowfall in December
Seneca, NE
- Average snowfall in December: 2.99"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Seneca, NE
- Average snowfall days in December: 7.1 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 and August (0 days).
Average daylight in December /
Average sunshine in December
Seneca, NE
- Average daylight in December: 9h and 1min
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: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Seneca, NE
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in December
Seneca, 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
Seneca, NE
- Average cloud cover in December: 42
The months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Seneca, 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).
Seneca, Nebraska, USA
Weather forecast for your location
2. Allow the app to use your location