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
December brings a minor decrease, with the average high-temperature reducing from a chilly 49.8°F (9.9°C) in November to a wintry 36°F (2.2°C). December witnesses an average nighttime temperature of 22.5°F (-5.3°C).Humidity
In December, the average relative humidity in Roca is 75%.Rainfall
In Roca, during December, the rain falls for 2.6 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, in Roca, 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 December, it is snowing for 3.2 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Roca, during the entire year, snow falls for 18.2 days and aggregates up to 3.11" (79mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:09 pm CST.
Sunshine
In December, the average sunshine in Roca, Nebraska, is 5.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Roca. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
How cold is December in Roca?
What is the average humidity in December in Roca?
How much does it rain in Roca in December?
How much does it snow in Roca 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 in Roca?
How many hours of sunshine does Roca have in December?
What are the months with the lowest UV index in Roca?
What is the UV index reading in December in Roca?
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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