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
December
Weather in December
Temperature
The start of December brings a distinct shift in the average high-temperature, dropping from November's frosty 8.5°C to a cold 0.5°C. Throughout December, an average low-temperature of -6.5°C is expected in Lyons.Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 4 days. Throughout December, 30mm of precipitation is accumulated. In Lyons, during the entire year, the rain falls for 120.1 days and collects up to 525mm of precipitation.Snowfall
January through May, October through December are months with snowfall. The months with the most snowfall are February and December, with an average 71mm of accumulated snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:34 am and sunset at 4:55 pm. On the last day of December, in Lyons, Nebraska, sunrise is at 7:53 am and sunset at 5:04 pm CST.
Sunshine
The average sunshine in December is 5h.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 radiation for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Lyons?
What is the average humidity in December in Lyons?
How many days does it rain in December in Lyons?
What is the snowiest month in Lyons?
How much does it snow in Lyons in December?
What is the month with the shortest days in Lyons?
What is the average length of the day in December in Lyons?
What time are sunrise and sunset in December in Lyons?
How many hours of sunshine does Lyons have in December?
What are the months with the lowest UV index in Lyons?
What is the UV index intensity in December in Lyons?
Average temperature in December
Lyons, NE
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in December: -6.5°C
The month with the highest average low temperature is July (18.4°C).
The coldest month (with the lowest average low temperature) is January (-9.2°C).
Average pressure in December
Lyons, NE
- Average pressure in December: 1020.3mbar
The month with the highest atmospheric pressure is January (1021.5mbar).
The month with the lowest atmospheric pressure is June (1011.1mbar).
Average wind speed in December
Lyons, NE
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is April (18km/h).
The calmest month (with the lowest average wind speed) is July (12.1km/h).
Average humidity in December
Lyons, NE
- Average humidity in December: 78%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
Lyons, NE
- Average rainfall in December: 30mm
The wettest month (with the highest rainfall) is May (79mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in December
Lyons, NE
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in December
Lyons, NE
- Average snowfall in December: 71mm
The months with the highest snowfall are February and December (71mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Lyons, NE
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lyons, 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 0min
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 42min).
Average sunshine days in December
Lyons, NE
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Lyons, 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
Lyons, NE
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Lyons, NE
- Average visibility in December: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).