December weather forecast
Riceville, IA

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Weather in December

Riceville witnesses the peak of winter during December. The temperatures fall to the year's second-lowest average, with the highs hardly breaching 27.5°F (-2.5°C) and the lows at a chilly 17.4°F (-8.1°C). With a substantial increase in snowfall to 3.86" (98mm), the city becomes a canvas for a winter wonderland. The short daylight hours and less sunshine become a cold, stark reality of December. The year concludes within a wintry grip, making for a truly white Christmas atmosphere.

Temperature

December brings a drop in Riceville's average high-temperature, falling from a wintry 41.5°F (5.3°C) in November to a freezing cold 27.5°F (-2.5°C). Riceville, during December, witnesses an average low-temperature of 17.4°F (-8.1°C).

Humidity

In December, the average relative humidity is 87%.

Rainfall

In Riceville, in December, during 5.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Riceville, during the entire year, the rain falls for 135.3 days and collects up to 26.54" (674mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 11.9 days. Throughout December, 3.86" (98mm) of snow is accumulated. Throughout the year, there are 50.9 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:23 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:44 pm CST.

Sunshine

In December, the average sunshine is 4h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature, in December, in Riceville, is 27.5°F (-2.5°C), while the low-temperature averages to 17.4°F (-8.1°C).

What is the average humidity in December?

The average relative humidity in December is 87%.

How much does it rain in December?

In Riceville, Iowa, in December, during 5.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

How much does it snow in December?

In Riceville, during December, snow falls for 11.9 days and regularly aggregates up to 3.86" (98mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

How many hours of daylight does Riceville have in December?

In Riceville, the average day length in December is 9h and 2min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:44 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Riceville, IA

Average temperature in December - Riceville, IA
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in December: 17.4°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in December
Riceville, IA

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

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Riceville, IA

Average wind speed in December - Riceville, 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 (7.3mph).

Average humidity in December
Riceville, IA

Average humidity in December - Riceville, IA
  • Average humidity in December: 87%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Riceville, IA

Average rainfall in December - Riceville, IA
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December
Riceville, IA

Average rainfall days in December - Riceville, IA
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (3 days).

Average snowfall in December
Riceville, IA

Average snowfall in December - Riceville, IA
  • Average snowfall in December: 3.86"

The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Riceville, IA

Average snowfall days in December - Riceville, IA
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is December (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Riceville, IA
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Riceville, IA

Average sunshine days in December - Riceville, IA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in December
Riceville, IA

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

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

Average cloud cover in December
Riceville, IA

Average cloud cover in December - Riceville, IA
  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Riceville, IA

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

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

Riceville, Iowa, USA

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