December weather forecast
Rodney, IA

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Weather in December

December, the first month of the winter in Rodney, is also an icy month, with an average temperature fluctuating between 20.3°F (-6.5°C) and 32.2°F (0.1°C).

Temperature

Rodney's December weather is marked by a distinct drop in high-temperatures, declining from a chilly 47.3°F (8.5°C) in November to an icy 32.2°F (0.1°C). December nights cool down to an average low-temperature of 20.3°F (-6.5°C).

Humidity

The average relative humidity in December is 79%.

Rainfall

In Rodney, during December, the rain falls for 3.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Rodney, during the entire year, the rain falls for 117.6 days and collects up to 21.89" (556mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In December, it is snowing for 7 days. Throughout December, 2.13" (54mm) of snow is accumulated. In Rodney, Iowa, during the entire year, snow falls for 32.9 days and aggregates up to 11.69" (297mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:33 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:01 pm CST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, a regular UV index of 1 translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Rodney, is 32.2°F (0.1°C) and the average low-temperature is 20.3°F (-6.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in December?

In Rodney, the average relative humidity in December is 79%.

How many days does it rain in December?

In December, the rain falls for 3.5 days. Throughout December, 1.42" (36mm) of precipitation is accumulated.

How much does it snow in December?

In Rodney, in December, during 7 snowfall days, 2.13" (54mm) of snow is typically accumulated.

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.

What is the average length of the day in December?

In Rodney, the average day length in December is 9h and 10min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:33 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:01 pm CST.

How many hours of sunshine does Rodney have in December?

The average sunshine duration in December in Rodney is 4.9h.

When is the lowest UV index?

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index in Rodney is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Rodney, IA

Average temperature in December - Rodney, IA
  • Average high temperature in December: 32.2°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°F).

  • Average low temperature in December: 20.3°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 (15.1°F).

Average pressure in December
Rodney, IA

Average pressure in December - Rodney, 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
Rodney, IA

Average wind speed in December - Rodney, IA
  • Average wind speed in December: 10mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in December
Rodney, IA

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

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).

Average rainfall in December
Rodney, IA

Average rainfall in December - Rodney, IA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in December
Rodney, IA

Average rainfall days in December - Rodney, IA
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in December
Rodney, IA

Average snowfall in December - Rodney, IA
  • Average snowfall in December: 2.13"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Rodney, IA

Average snowfall days in December - Rodney, IA
  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rodney, 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 24min).

Average sunshine days in December
Rodney, IA

Average sunshine days in December - Rodney, IA
  • Average sunshine days in December: 20.7 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).

Average UV index in December
Rodney, IA

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in December
Rodney, IA

Average cloud cover in December - Rodney, IA
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in December
Rodney, IA

Average visibility in December - Rodney, 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).

Rodney, Iowa, USA

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