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, with an average high of 46.4°F (8°C) and a low of 28°F (-2.2°C), signifies the coldest month of the year.Humidity
December is the most humid month, with an average relative humidity of 58%.Rainfall
In Rolla, during December, the rain falls for 2.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Rolla, during the entire year, the rain falls for 97.1 days and collects up to 14.25" (362mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Rolla, in December, snow falls for 2.6 days, with typically accumulated 0.79" (20mm) of snow. In Rolla, during the entire year, snow falls for 14.4 days and aggregates up to 5.51" (140mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year in Rolla.On the first day of the month, sunrise is at 7:42 am and sunset at 5:29 pm. On the last day of December, in Rolla, sunrise is at 7:59 am and sunset at 5:39 pm CST.
Sunshine
With an average of 6.8h of sunshine, December has the least sunshine of the year in Rolla.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest time of year in Rolla?
What are December temperatures in Rolla?
What is the most humid month in Rolla?
What is the average humidity in December in Rolla?
How many days does it rain in December in Rolla?
How many days does it snow in December in Rolla?
What is the month with the shortest days in Rolla?
How many hours of daylight does Rolla have in December?
When are sunrise and sunset in December in Rolla?
What is the month with the least sunshine in Rolla?
How long on average sun shines in December in Rolla?
What is the month with the lowest UV index in Rolla?
What is the UV index intensity in December in Rolla?
Average temperature in December
Rolla, KS
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.4°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is December (28°F).
Average pressure in December
Rolla, KS
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in December
Rolla, KS
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest months (with the lowest average wind speed) are January and August (10.4mph).
Average humidity in December
Rolla, KS
- Average humidity in December: 58%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is June (45%).
Average rainfall in December
Rolla, KS
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in December
Rolla, KS
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (2.4 days).
Average snowfall in December
Rolla, KS
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rolla, KS
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rolla, KS
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Rolla, KS
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is November (26.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Rolla, KS
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Rolla, KS
- Average cloud cover in December: 23
The month with the most cloud cover is February (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in December
Rolla, KS
- 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).
Rolla, Kansas, USA
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