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 arrival of December corresponds with a temperature reduction, down from November's chilly 43.5°F (6.4°C) to a freezing cold 30.4°F (-0.9°C). During the month of December, the nighttime temperature falls to an average of 20.3°F (-6.5°C).Humidity
The average relative humidity in December is 83%.Rainfall
In Osterdock, Iowa, in December, it is raining for 6 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 138.5 rainfall days, and 28.46" (723mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Osterdock, in December, during 10.6 snowfall days, 3.94" (100mm) of snow is typically accumulated. Throughout the year, in Osterdock, Iowa, there are 48.6 snowfall days, and 19.57" (497mm) of snow is accumulated.Daylight
December has the shortest days of the year in Osterdock, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:16 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:41 pm CST.
Sunshine
In December, the average sunshine in Osterdock is 4h.UV index
The months with the lowest UV index in Osterdock are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Osterdock in December?
What is the average humidity in December in Osterdock?
How much does it rain in Osterdock in December?
How much does it snow in Osterdock in December?
What is the month with the shortest days in Osterdock?
How many hours of daylight does Osterdock have in December?
When is the sunrise / sunset in December in Osterdock?
How many hours of sunshine does Osterdock have in December?
When is the lowest UV index in Osterdock?
How high is the UV index in December in Osterdock?
Average temperature in December
Osterdock, IA
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in December: 20.3°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 (11.3°F).
Average pressure in December
Osterdock, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Osterdock, IA
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Osterdock, IA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Osterdock, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in December
Osterdock, IA
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in December
Osterdock, IA
- Average snowfall in December: 3.94"
The month with the highest snowfall is January (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Osterdock, IA
- Average snowfall days in December: 10.6 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Osterdock, 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 months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Osterdock, IA
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Osterdock, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Osterdock, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Osterdock, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Osterdock, Iowa, USA
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