December weather forecast
Brayton, IA

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Weather in December

December, the first month of the winter in Brayton, is still a cold month, with an average temperature ranging between max 32.4°F (0.2°C) and min 20.8°F (-6.2°C).

Temperature

In December, the meteorological conditions alter, with the average high-temperature shifting from a chilly 45.9°F (7.7°C) in November to an icy 32.4°F (0.2°C). During December nights, Brayton witnesses a consistent average temperature of 20.8°F (-6.2°C).

Humidity

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

Rainfall

In Brayton, in December, during 5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 127.8 rainfall days, and 24.88" (632mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Brayton, during December, snow falls for 8.2 days and regularly aggregates up to 2.4" (61mm) of snow. Throughout the year, there are 38 snowfall days, and 12.72" (323mm) 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 7:27 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:59 pm CST.

Sunshine

The average sunshine in December is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 2 in December transforms into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The average high-temperature and low-temperature during December are 32.4°F (0.2°C) and 20.8°F (-6.2°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in December in Brayton?

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

How much does it rain in December?

In December, the rain falls for 5 days. Throughout December, 1.3" (33mm) of precipitation is accumulated.

How many days does it snow in December?

In Brayton, in December, snow falls for 8.2 days, with typically accumulated 2.4" (61mm) 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.

What is the average length of the day in December?

The average day length in December is 9h and 14min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:27 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:59 pm CST.

How many hours of sunshine does Brayton have in December?

The average sunshine duration in December is 4.9h.

When is the lowest UV index in Brayton?

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

What is the UV index intensity in December?

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

Average temperature in December - Brayton, IA
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in December: 20.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

Average pressure in December
Brayton, IA

Average pressure in December - Brayton, 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 (29.88"Hg).

Average wind speed in December
Brayton, IA

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

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

Average humidity in December
Brayton, IA

Average humidity in December - Brayton, 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
Brayton, IA

Average rainfall in December - Brayton, IA
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in December
Brayton, IA

Average rainfall days in December - Brayton, IA
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in December
Brayton, IA

Average snowfall in December - Brayton, IA
  • Average snowfall in December: 2.4"

The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Brayton, IA

Average snowfall days in December - Brayton, IA
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Brayton, IA

Average sunshine days in December - Brayton, IA
  • Average sunshine days in December: 19 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in December
Brayton, IA

Average UV index in December - Brayton, 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, November and December (UV index 2).

Average cloud cover in December
Brayton, IA

Average cloud cover in December - Brayton, IA
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Brayton, IA

Average visibility in December - Brayton, 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).

Brayton, Iowa, USA

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