December weather forecastAckworth, IA
December
Weather in December
December, the first month of the winter in Ackworth, is also an icy month, with an average temperature fluctuating between 34.7°F (1.5°C) and 22.8°F (-5.1°C).Temperature
In December, the average high-temperature decreases from a chilly 47.5°F (8.6°C) in November to an icy 34.7°F (1.5°C). The nighttime temperature, during December, averages of 22.8°F (-5.1°C).Humidity
In December, the average relative humidity is 78%.Rainfall
The month with the least rainfall is December, when the rain falls for 4.7 days and typically collects 0.55" (14mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ackworth, in December, during 5.7 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, there are 31.9 snowfall days, and 10.12" (257mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:54 pm CST.
Sunshine
In Ackworth, the average sunshine in December is 4.8h.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ackworth, IA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Ackworth, 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 (29.89"Hg).
Average wind speed in December
Ackworth, IA
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Ackworth, IA
- Average humidity in December: 78%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Ackworth, IA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in December
Ackworth, IA
- Average rainfall days in December: 4.7 days
The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in December
Ackworth, IA
- Average snowfall in December: 0.94"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ackworth, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ackworth, IA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 48min
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 18min).
Average sunshine days in December
Ackworth, IA
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Ackworth, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Ackworth, IA
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Ackworth, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





