December weather forecast
Mondamin, IA

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Weather in December

December, the first month of the winter in Mondamin, is still a cold month, with an average temperature varying between 32.9°F (0.5°C) and 21.4°F (-5.9°C).

Temperature

The shift from November to December brings a noticeable decrease in the average high-temperature, dropping from a chilly 47.5°F (8.6°C) to a wintry 32.9°F (0.5°C). Throughout December, a steady low-temperature average of 21.4°F (-5.9°C) is noted.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Mondamin, in December, during 4.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 123.1 rainfall days, and 23.39" (594mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Mondamin, during December, snow falls for 6.8 days and regularly aggregates up to 2.36" (60mm) of snow. Throughout the year, there are 32.8 snowfall days, and 13.23" (336mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:32 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:03 pm CST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, the average high-temperature and low-temperature are 32.9°F (0.5°C) and 21.4°F (-5.9°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 79%.

How much does it rain in December?

In Mondamin, during December, the rain falls for 4.5 days and regularly aggregates up to 1.46" (37mm) of precipitation.

How many days does it snow in December?

In Mondamin, in December, snow falls for 6.8 days, with typically accumulated 2.36" (60mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Mondamin have in December?

In Mondamin, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:32 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 5:03 pm CST.

How many hours of sunshine does Mondamin have in December?

In Mondamin, the average sunshine duration in December is 4.9h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

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

Average temperature in December - Mondamin, IA
  • Average high temperature in December: 32.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in December: 21.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in December
Mondamin, IA

Average pressure in December - Mondamin, IA
  • 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
Mondamin, IA

Average wind speed in December - Mondamin, IA
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in December
Mondamin, IA

Average humidity in December - Mondamin, IA
  • Average humidity in December: 79%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (66%).

Average rainfall in December
Mondamin, IA

Average rainfall in December - Mondamin, IA
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in December
Mondamin, IA

Average rainfall days in December - Mondamin, IA
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in December
Mondamin, IA

Average snowfall in December - Mondamin, IA
  • Average snowfall in December: 2.36"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Mondamin, IA

Average snowfall days in December - Mondamin, IA
  • Average snowfall days in December: 6.8 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Mondamin, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in December
Mondamin, IA

Average sunshine days in December - Mondamin, IA
  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (10.7 days).

Average UV index in December
Mondamin, IA

Average UV index in December - Mondamin, IA
  • 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, October, November and December (UV index 2).

Average cloud cover in December
Mondamin, IA

Average cloud cover in December - Mondamin, IA
  • Average cloud cover in December: 46

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in December
Mondamin, IA

Average visibility in December - Mondamin, IA
  • 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).

Mondamin, Iowa, USA

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