December weather forecast
Rippey, IA

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Weather in December

The first month of the winter, December, is also a wintry month in Rippey, Iowa, with an average temperature ranging between min 21.4°F (-5.9°C) and max 32.9°F (0.5°C).

Temperature

The onset of December introduces a moderate change in Rippey's weather, with average high-temperatures falling from November's frosty 46.6°F (8.1°C) to a wintry 32.9°F (0.5°C). In December, Rippey records an average nighttime temperature of 21.4°F (-5.9°C).

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Rippey, in December, it is raining for 5.5 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 131.7 rainfall days, and 26.65" (677mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Rippey, in December, snow falls for 7.5 days, with typically accumulated 1.81" (46mm) of snow. Throughout the year, there are 37.2 snowfall days, and 13.35" (339mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:55 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

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 minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 2 during December leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Around midday, solar radiation is most harmful; hence, exposure should be limited. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Rippey?

December temperatures vary between a high-temperature of 32.9°F (0.5°C) and a low-temperature of 21.4°F (-5.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is calculated to be 89.6°F (32°C).

What is the average humidity in December?

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

How many days does it rain in December?

In Rippey, during December, the rain falls for 5.5 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in December?

In Rippey, in December, snow falls for 7.5 days, with typically accumulated 1.81" (46mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Rippey have in December?

The average day length in December is 9h and 11min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:55 pm CST.

How many hours of sunshine does Rippey have in December?

In December, the average sunshine duration is 4.8h.

What is the month with the lowest UV index?

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

What is the UV index reading in December in Rippey?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Rippey, IA

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in December: 21.4°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14°F).

Average pressure in December
Rippey, IA

Average pressure in December - Rippey, IA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Rippey, IA

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

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in December
Rippey, IA

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

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Rippey, IA

Average rainfall in December - Rippey, IA
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in December
Rippey, IA

Average rainfall days in December - Rippey, IA
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in December
Rippey, IA

Average snowfall in December - Rippey, IA
  • Average snowfall in December: 1.81"

The month with the highest snowfall is January (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Rippey, IA

Average snowfall days in December - Rippey, IA
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rippey, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Rippey, IA

Average sunshine days in December - Rippey, IA
  • Average sunshine days in December: 18.9 days

The months with the most sunshine days are October, November and December (18.9 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in December
Rippey, IA

Average UV index in December - Rippey, IA
  • Average UV index in December: 2

The months with the highest UV index are June and July (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
Rippey, IA

Average cloud cover in December - Rippey, IA
  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).

Average visibility in December
Rippey, IA

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

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

Rippey, Iowa, USA

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