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
Atlantic's transition into December involves a shift in temperature, receding from a chilly 47.1°F (8.4°C) in November to a wintry 33.4°F (0.8°C). Throughout December, Atlantic anticipates an average low-temperature of 21°F (-6.1°C).Humidity
The average relative humidity in December is 79%.Rainfall
In December, in Atlantic, the rain falls for 4.4 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Atlantic, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 6.4 days. Throughout December, 1.81" (46mm) of snow is accumulated. Throughout the year, in Atlantic, there are 32.3 snowfall days, and 9.41" (239mm) 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 December, sunrise is at 7:27 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:00 pm CST.
Sunshine
The average sunshine in December in Atlantic is 4.9h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Atlantic. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Atlantic?
What is the average humidity in December in Atlantic?
How much does it rain in Atlantic in December?
How much does it snow in Atlantic in December?
What is the month with the shortest days in Atlantic?
What is the average length of the day in December in Atlantic?
When are sunrise and sunset in December in Atlantic?
How many hours of sunshine does Atlantic have in December?
What are the months with the lowest UV index in Atlantic?
How high is the UV index in December in Atlantic?
Average temperature in December
Atlantic, IA
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 21°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 (15.1°F).
Average pressure in December
Atlantic, 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
Atlantic, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Atlantic, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Atlantic, IA
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Atlantic, IA
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Atlantic, IA
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Atlantic, IA
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Atlantic, 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 30min).
Average sunshine days in December
Atlantic, IA
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Atlantic, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (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
Atlantic, IA
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Atlantic, 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).
Atlantic, Iowa, USA
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