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
December's arrival corresponds with a decrease in average high-temperatures, from November's icy 42.6°F (5.9°C) to a freezing cold 29.5°F (-1.4°C). Jackson Junction experiences an average low-temperature reading of 18.9°F (-7.3°C) throughout December.Humidity
The average relative humidity in December in Jackson Junction is 84%.Rainfall
In December, the rain falls for 5.8 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. Throughout the year, in Jackson Junction, Iowa, there are 146.5 rainfall days, and 31.3" (795mm) of precipitation is accumulated.Snowfall
Months with snowfall in Jackson Junction, Iowa, are January through May, October through December. In Jackson Junction, in December, during 13.1 snowfall days, 5.04" (128mm) of snow is typically accumulated. In Jackson Junction, during the entire year, snow falls for 59.9 days and aggregates up to 24.84" (631mm) 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 December in Jackson Junction, sunrise is at 7:20 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:43 pm CST.
Sunshine
In Jackson Junction, the average sunshine in December is 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 minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Jackson Junction in December?
What is the average humidity in December in Jackson Junction?
How much does it rain in Jackson Junction in December?
How many days does it snow in December in Jackson Junction?
What is the month with the shortest days in Jackson Junction?
How many hours of daylight does Jackson Junction have in December?
What time are sunrise and sunset in December in Jackson Junction?
How long on average sun shines in December in Jackson Junction?
When is the lowest UV index in Jackson Junction?
How high is the UV index in December in Jackson Junction?
Average temperature in December
Jackson Junction, IA
- Average high temperature in December: 29.5°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in December: 18.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in December
Jackson Junction, 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
Jackson Junction, IA
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Jackson Junction, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in December
Jackson Junction, IA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Jackson Junction, IA
- Average rainfall days in December: 5.8 days
The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Jackson Junction, IA
- Average snowfall in December: 5.04"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jackson Junction, IA
- Average snowfall days in December: 13.1 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jackson Junction, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Jackson Junction, IA
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in December
Jackson Junction, IA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Jackson Junction, IA
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Jackson Junction, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Jackson Junction, Iowa, USA
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