Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The shift from November to December sees a distinct decrease in the average high-temperature, dropping from a frosty 45.1°F (7.3°C) to a subzero cold 30.2°F (-1°C). In Brook Mount, December is marked by an average low-temperature of 19.9°F (-6.7°C).Humidity
In Brook Mount, the average relative humidity in December is 81%.Rainfall
In Brook Mount, Iowa, in December, during 3.1 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, in Brook Mount, Iowa, there are 97 rainfall days, and 10.12" (257mm) of precipitation is accumulated.Snowfall
Months with snowfall in Brook Mount, Iowa, are January through April, October through December. In Brook Mount, during December, snow falls for 7.2 days and regularly aggregates up to 0.71" (18mm) of snow. In Brook Mount, during the entire year, snow falls for 30.1 days and aggregates up to 4.49" (114mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:58 pm CST.
Sunshine
The average sunshine in December in Brook Mount is 4.7h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Brook Mount in December?
What is the average humidity in December in Brook Mount?
How much does it rain in Brook Mount in December?
How many days does it snow in December in Brook Mount?
What is the month with the shortest days in Brook Mount?
How many hours of daylight does Brook Mount have in December?
When is the sunrise / sunset in December in Brook Mount?
How long on average sun shines in December in Brook Mount?
What is the UV index intensity in December in Brook Mount?
Average temperature in December
Brook Mount, IA
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 19.9°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 (13.3°F).
Average pressure in December
Brook Mount, 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 (29.87"Hg).
Average wind speed in December
Brook Mount, IA
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Brook Mount, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in December
Brook Mount, IA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in December
Brook Mount, IA
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in December
Brook Mount, IA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Brook Mount, IA
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brook Mount, 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 6min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Brook Mount, IA
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Brook Mount, 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 and February (UV index 1).
Average cloud cover in December
Brook Mount, IA
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Brook Mount, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Brook Mount, Iowa, USA
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