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 indicates a shift in the average high-temperature, from November's chilly 45.7°F (7.6°C) to a wintry 32.2°F (0.1°C). The average nighttime temperature lowers to a freezing cold 21.2°F (-6°C) throughout December.Humidity
The average relative humidity in December is 81%.Rainfall
In December, the rain falls for 3.2 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. In Jordan, during the entire year, the rain falls for 103.9 days and collects up to 13.46" (342mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Jordan, during December, snow falls for 6.1 days and regularly aggregates up to 0.98" (25mm) of snow. In Jordan, during the entire year, snow falls for 29.9 days and aggregates up to 6.3" (160mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:24 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:53 pm CST.
Sunshine
In December, the average sunshine is 4.6h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December converts 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. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Jordan have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Jordan have in December?
What are the months with the lowest UV index in Jordan?
What is the UV index reading in December in Jordan?
Average temperature in December
Jordan, IA
- Average high temperature in December: 32.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in December
Jordan, IA
- Average pressure in December: 30.12"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
Jordan, IA
- Average wind speed in December: 10.1mph
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
Jordan, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Jordan, IA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Jordan, IA
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in December
Jordan, IA
- Average snowfall in December: 0.98"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jordan, IA
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jordan, 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 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Jordan, IA
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (14 days).
Average UV index in December
Jordan, 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, October, November and December (UV index 2).
Average cloud cover in December
Jordan, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Jordan, 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).
Jordan, Iowa, USA
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