December weather forecastBrandon, IA
December
Weather in December
December, the first month of the winter in Brandon, is also a subzero cold month, with an average temperature varying between 31.6°F (-0.2°C) and 20.8°F (-6.2°C).Temperature
A change in temperatures is noted as November gives way to December, with average highs reducing from a chilly 44.8°F (7.1°C) to a freezing cold 31.6°F (-0.2°C). During the month of December, an average low-temperature of 20.8°F (-6.2°C) is recorded.Humidity
The average relative humidity in December is 82%.Rainfall
In Brandon, in December, it is raining for 5.3 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Brandon, Iowa, there are 117.9 rainfall days, and 15.63" (397mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Brandon, during December, snow falls for 7 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, there are 31.8 snowfall days, and 6.69" (170mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:45 pm CST.
Sunshine
The average sunshine in December is 4.4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brandon, IA
- Average high temperature in December: 31.6°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in December
Brandon, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Brandon, 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 (7mph).
Average humidity in December
Brandon, IA
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Brandon, IA
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (2.52").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in December
Brandon, IA
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is May (16 days).
The months with the least rainy days are January and February (3.1 days).
Average snowfall in December
Brandon, IA
- Average snowfall in December: 0.91"
The months with the highest snowfall are January and February (1.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Brandon, IA
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brandon, IA
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Brandon, IA
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in December
Brandon, IA
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Brandon, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in December
Brandon, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
