December weather forecast
Urbana, IA

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Weather in December

December, the first month of the winter in Urbana, is also an icy month, with an average temperature fluctuating between 21.7°F (-5.7°C) and 32.2°F (0.1°C).

Temperature

In December, the average high-temperature goes from a frosty 44.8°F (7.1°C) in November to a wintry 32.2°F (0.1°C). The average nighttime temperature lowers to a subzero cold 21.7°F (-5.7°C) throughout December.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Urbana, in December, during 6.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 138.6 rainfall days, and 27.8" (706mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Urbana, during December, snow falls for 9.1 days and regularly aggregates up to 2.8" (71mm) of snow. In Urbana, during the entire year, snow falls for 41.2 days and aggregates up to 16.73" (425mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Urbana.
On the first day of December, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:45 pm CST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 suggests these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Jun 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Urbana experiences an average high-temperature of 32.2°F (0.1°C) and a low-temperature of 21.7°F (-5.7°C).

What is the average humidity in December?

In December, the average relative humidity is 82%.

How much does it rain in December?

In December, in Urbana, the rain falls for 6.7 days. Throughout December, 1.34" (34mm) of precipitation is accumulated.

How much does it snow in December?

In Urbana, in December, snow falls for 9.1 days, with typically accumulated 2.8" (71mm) of snow.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

How many hours of daylight does Urbana have in December?

The average day length in December is 9h and 10min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:45 pm CST.

How long on average sun shines in December?

The average sunshine duration in December in Urbana is 4.3h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Urbana, IA

Average temperature in December - Urbana, IA
  • Average high temperature in December: 32.2°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in December
Urbana, IA

Average pressure in December - Urbana, IA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Urbana, IA

Average wind speed in December - Urbana, IA
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in December
Urbana, IA

Average humidity in December - Urbana, IA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Urbana, IA

Average rainfall in December - Urbana, IA
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is May (4.37").
The driest months (with the least rainfall) are January and February (1.18").

Average rainfall days in December
Urbana, IA

Average rainfall days in December - Urbana, IA
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in December
Urbana, IA

Average snowfall in December - Urbana, IA
  • Average snowfall in December: 2.8"

The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Urbana, IA

Average snowfall days in December - Urbana, IA
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Urbana, IA

Average daylight in December / Average sunshine in December - Urbana, IA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in December
Urbana, IA

Average sunshine days in December - Urbana, IA
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in December
Urbana, IA

Average UV index in December - Urbana, IA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Urbana, IA

Average cloud cover in December - Urbana, IA
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Urbana, IA

Average visibility in December - Urbana, IA
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).

Urbana, Iowa, USA

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