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
December marks a distinct drop in the average high-temperature, descending from November's chilly 42.8°F (6°C) to a subzero cold 28.4°F (-2°C). In the month of December, an average of 18.3°F (-7.6°C) marks the low-temperature.Humidity
In Colwell, the average relative humidity in December is 85%.Rainfall
In Colwell, in December, during 5.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Colwell, during the entire year, the rain falls for 136.1 days and collects up to 27.32" (694mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Colwell, during December, snow falls for 13.8 days and regularly aggregates up to 4.84" (123mm) of snow. In Colwell, during the entire year, snow falls for 59.5 days and aggregates up to 25.04" (636mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 4:45 pm CST.
Sunshine
In December, the average sunshine is 4.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Colwell. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. To guard against the harmful effects of the Sun, minimize exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Colwell have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Colwell, IA
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in December: 18.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in December
Colwell, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Colwell, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Colwell, IA
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Colwell, IA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Colwell, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Colwell, IA
- Average snowfall in December: 4.84"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Colwell, IA
- Average snowfall days in December: 13.8 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Colwell, 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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Colwell, IA
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Colwell, IA
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Colwell, 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 32).
Average visibility in December
Colwell, IA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Colwell, Iowa, USA
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