December weather forecast
Rolla, KS

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Weather in December

December, the first month of the winter in Rolla, is also a frosty month, with an average temperature varying between 28°F (-2.2°C) and 46.4°F (8°C).

Temperature

With an average high-temperature of 46.4°F (8°C) and an average low-temperature of 28°F (-2.2°C), December is the coldest month.

Humidity

The most humid month in Rolla is December, with an average relative humidity of 58%.

Rainfall

In Rolla, in December, during 2.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. 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 December, it is snowing for 2.6 days. Throughout December, 0.79" (20mm) of snow is accumulated. 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.
On the first day of December in Rolla, Kansas, sunrise is at 7:42 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:39 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 6.8h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Rolla?

December, recording an average high temperature of 46.4°F (8°C) and a low temperature of 28°F (-2.2°C), is Rolla's coldest month.

What is the usual temperature for Rolla in December?

During December, Rolla experiences an average high-temperature of 46.4°F (8°C) and a low-temperature of 28°F (-2.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 86°F (30°C).

What is the most humid month?

With an average relative humidity of 58%, December is the most humid month.

What is the average humidity in December?

The average relative humidity in December is 58%.

How many days does it rain in December?

In Rolla, during December, the rain falls for 2.5 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How many days does it snow in December?

In Rolla, during December, snow falls for 2.6 days and regularly aggregates up to 0.79" (20mm) of snow.

What is the month with the shortest days?

With an average of 9h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Rolla?

The average day length in December is 9h and 40min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:42 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:39 pm CST.

What is the month with the least sunshine?

With an average of 6.8h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

In Rolla, the average sunshine duration in December is 6.8h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Rolla?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rolla, KS

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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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