December weather forecast and climate
Rolla, KS

December, the first month of the winter, in Rolla, is still a chilly month, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 28°F (-2.2°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

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

Rainfall

In Rolla, during 2.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 97.1 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Rolla 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

The month with the shortest days in Rolla is December, with an average of 9.7h of daylight.

Sunshine

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

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged 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. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Rolla?

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

What is the temperature in December in Rolla?

In Rolla, in December, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 28°F (-2.2°C).

What is the most humid month in Rolla?

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

What is the average humidity in December in Rolla?

In December, the average relative humidity in Rolla is 58%.

How much does it rain in Rolla in December?

In Rolla, Kansas, 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?

In December, in Rolla, Kansas, it is snowing for 2.6 days. Throughout December, 0.79" (20mm) of snow is accumulated.

What is the month with the shortest days in Rolla?

With an average of 9.7h of daylight, December has the shortest days of the year in Rolla.

How many hours of daylight does Rolla have in December?

In December, the average length of the day is 9.7h.

What is the month with the least sunshine in Rolla?

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

How many hours of sunshine does Rolla have in December?

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

What are the months with the lowest UV index in Rolla?

Months with the lowest UV index in Rolla 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 in Rolla, Kansas, is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.
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"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.81").

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").
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).
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: 9.7h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in December: 6.8h

The month with the most sunshine is June (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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

Months with the highest UV index are June, July and August (UV index 7).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).