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
Ridgeport's December weather features a mild decline in high-temperatures, reducing from a chilly 45.5°F (7.5°C) in November to a cold 32.2°F (0.1°C). In Ridgeport, December nights cool down to an average of 21°F (-6.1°C).Humidity
In Ridgeport, Iowa, the average relative humidity in December is 81%.Rainfall
In Ridgeport, in December, during 4.7 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Ridgeport, Iowa, during the entire year, the rain falls for 123.3 days and collects up to 20.98" (533mm) of precipitation.Snowfall
Months with snowfall in Ridgeport are January through May, October through December. In Ridgeport, in December, snow falls for 8.6 days, with typically accumulated 1.73" (44mm) of snow. Throughout the year, there are 39.9 snowfall days, and 10.91" (277mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December in Ridgeport, sunrise is at 7:25 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:53 pm CST.
Sunshine
In Ridgeport, the average sunshine in December 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 in Ridgeport. A UV Index 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 2 transforms into these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Ridgeport?
What is the average humidity in December in Ridgeport?
How much does it rain in Ridgeport in December?
How many days does it snow in December in Ridgeport?
What is the month with the shortest days in Ridgeport?
How many hours of daylight does Ridgeport have in December?
When are sunrise and sunset in December in Ridgeport?
How long on average sun shines in December in Ridgeport?
When is the lowest UV index in Ridgeport?
How high is the UV index in December in Ridgeport?
Average temperature in December
Ridgeport, 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°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 (13.1°F).
Average pressure in December
Ridgeport, 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
Ridgeport, 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
Ridgeport, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Ridgeport, IA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Ridgeport, IA
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Ridgeport, IA
- Average snowfall in December: 1.73"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ridgeport, IA
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ridgeport, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Ridgeport, IA
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in December
Ridgeport, 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
Ridgeport, 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
Ridgeport, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Ridgeport, Iowa, USA
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