December weather forecast
Keota, IA

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Weather in December

The first month of the winter, December, is also an icy month in Keota, Iowa, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 34.7°F (1.5°C).

Temperature

The start of December signals a decrease in the average high-temperature, transitioning from a frosty 46.9°F (8.3°C) in November to a cold 34.7°F (1.5°C). Throughout December, an average low-temperature of 23.4°F (-4.8°C) is expected.

Humidity

In Keota, the average relative humidity in December is 80%.

Rainfall

In Keota, during December, the rain falls for 6.8 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Keota, during December, snow falls for 6.5 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 32.8 snowfall days, and 12.56" (319mm) 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 7:15 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:48 pm CST.

Sunshine

In December, the average sunshine is 4.6h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 16, 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 Keota, records 34.7°F (1.5°C), while the low-temperature is 23.4°F (-4.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

How many days does it rain in December?

In December, the rain falls for 6.8 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 6.5 days. Throughout December, 1.34" (34mm) of snow is 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?

The average day length in December is 9h and 15min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:15 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:48 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.6h.

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 Keota, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Keota, IA

Average temperature in December - Keota, IA
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in December: 23.4°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in December
Keota, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Keota, IA

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

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in December
Keota, IA

Average humidity in December - Keota, IA
  • Average humidity in December: 80%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Keota, IA

Average rainfall in December - Keota, IA
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in December
Keota, IA

Average rainfall days in December - Keota, IA
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in December
Keota, IA

Average snowfall in December - Keota, IA
  • Average snowfall in December: 1.34"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Keota, IA

Average snowfall days in December - Keota, IA
  • Average snowfall days in December: 6.5 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 4min

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
Keota, IA

Average sunshine days in December - Keota, IA
  • Average sunshine days in December: 19.1 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December
Keota, IA

Average UV index in December - Keota, 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
Keota, IA

Average cloud cover in December - Keota, IA
  • Average cloud cover in December: 52

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in December
Keota, IA

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

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

Keota, Iowa, USA

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