December weather forecastAllendorf, IA
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Allendorf, Iowa, with an average temperature ranging between min 15.8°F (-9°C) and max 26.8°F (-2.9°C).Temperature
A decrease in the average high-temperature marks December, falling from November's wintry 42.3°F (5.7°C) to a subzero cold 26.8°F (-2.9°C). In the month of December, the nighttime temperature dips to a steady average of 15.8°F (-9°C).Humidity
In Allendorf, the average relative humidity in December is 85%.Rainfall
In Allendorf, in December, during 4.9 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 122.3 rainfall days, and 22.24" (565mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Allendorf, it is snowing for 11.1 days. Throughout December, 3.46" (88mm) of snow is accumulated. Throughout the year, there are 51.6 snowfall days, and 19.69" (500mm) of snow is accumulated.Daylight
The month with the shortest days in Allendorf is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:36 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 4:56 pm CST.
Sunshine
In December, the average sunshine is 4.3h.UV index
In Allendorf, Iowa, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Allendorf, IA
- Average high temperature in December: 26.8°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 (22.3°F).
- Average low temperature in December: 15.8°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 (9.5°F).
Average pressure in December
Allendorf, 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 (29.87"Hg).
Average wind speed in December
Allendorf, IA
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in December
Allendorf, IA
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Allendorf, IA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Allendorf, IA
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Allendorf, IA
- Average snowfall in December: 3.46"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Allendorf, IA
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Allendorf, IA
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Allendorf, IA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Allendorf, 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 and February (UV index 1).
Average cloud cover in December
Allendorf, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Allendorf, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
