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 average high-temperature drops in December, from November's frosty 49.8°F (9.9°C) to a cold 36°F (2.2°C). Throughout December nights, Roca experiences a consistent temperature average of 22.5°F (-5.3°C).Humidity
In December, the average relative humidity is 75%.Rainfall
In Roca, in December, it is raining for 2.6 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 84.8 rainfall days, and 7.44" (189mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Roca, in December, during 3.2 snowfall days, 0.28" (7mm) of snow is typically accumulated. Throughout the year, there are 18.2 snowfall days, and 3.11" (79mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:50 am and sunset at 5:09 pm CST.
Sunshine
The average sunshine in December is 5.3h.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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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 much does it rain in Roca in December?
How much does it snow in December?
What is the month with the shortest days in Roca?
How many hours of daylight does Roca have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Roca have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Roca, NE
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Roca, 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
Roca, NE
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Roca, NE
- Average humidity in December: 75%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
Roca, NE
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is June (1.3").
The driest month (with the least rainfall) is February (0.16").
Average rainfall days in December
Roca, NE
- Average rainfall days in December: 2.6 days
The month with the highest number of rainy days is June (11.7 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in December
Roca, NE
- Average snowfall in December: 0.28"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roca, NE
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roca, NE
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Roca, NE
- Average sunshine days in December: 25.4 days
The months with the most sunshine days are January and November (25.5 days).
The month with the least sunshine days is June (15 days).
Average UV index in December
Roca, 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
Roca, NE
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in December
Roca, 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).
Roca, Nebraska, USA
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