December weather forecastAdel, IA
December
Weather in December
The first month of the winter, December, is still a cold month in Adel, Iowa, with an average temperature ranging between max 33.4°F (0.8°C) and min 22.3°F (-5.4°C).Temperature
December's onset brings a reduction in the average high-temperature, from a chilly 46.6°F (8.1°C) in November to an icy 33.4°F (0.8°C). An average low-temperature of 22.3°F (-5.4°C) is common during the nights of December.Humidity
The average relative humidity in December in Adel is 78%.Rainfall
In Adel, in December, during 3.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, in Adel, there are 112.7 rainfall days, and 16.06" (408mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Adel. In December, in Adel, it is snowing for 5.7 days. Throughout December, 0.87" (22mm) of snow is accumulated. In Adel, during the entire year, snow falls for 32 days and aggregates up to 7.32" (186mm) of snow.Daylight
The month with the shortest days in Adel is December, with an average of 9h and 12min of daylight.On the first day of December in Adel, Iowa, sunrise is at 7:24 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in December in Adel, Iowa, is 4.8h.UV index
In Adel, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Adel, IA
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Adel, 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
Adel, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Adel, IA
- Average humidity in December: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Adel, IA
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Adel, IA
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Adel, IA
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Adel, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Adel, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Adel, IA
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in December
Adel, 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
Adel, 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 29).
Average visibility in December
Adel, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
