December weather forecastOttosen, IA
December
Weather in December
December, the first month of the winter in Ottosen, is also a subzero cold month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 28.2°F (-2.1°C).Temperature
As Ottosen transitions into December, a noticeable drop in the average high-temperature is observed, falling from a frosty 43.2°F (6.2°C) in November to a freezing cold 28.2°F (-2.1°C). During December, Ottosen experiences a consistent low-temperature average of 17.8°F (-7.9°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Ottosen, in December, it is raining for 3.3 days, with typically 0.51" (13mm) of accumulated precipitation. In Ottosen, during the entire year, the rain falls for 100.5 days and collects up to 11.69" (297mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Ottosen, in December, during 8 snowfall days, 1.22" (31mm) of snow is typically accumulated. Throughout the year, there are 36.9 snowfall days, and 8.43" (214mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:53 pm CST.
Sunshine
In Ottosen, the average sunshine in December is 4.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ottosen, IA
- Average high temperature in December: 28.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 17.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Ottosen, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Ottosen, IA
- Average wind speed in December: 10.4mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in December
Ottosen, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Ottosen, IA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Ottosen, IA
- Average rainfall days in December: 3.3 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
Ottosen, IA
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ottosen, IA
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ottosen, IA
- Average daylight in December: 9h and 6min
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 18min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Ottosen, IA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in December
Ottosen, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Ottosen, IA
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Ottosen, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





