December weather forecastCerro Gordo, IL
December
Weather in December
The first month of the winter, December, is also a wintry month in Cerro Gordo, Illinois, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 27.9°F (-2.3°C).Temperature
December suggests a modest reduction in the average high-temperature, shifting from a frosty 49.6°F (9.8°C) in November to an icy 38.3°F (3.5°C). Throughout the month of December, Cerro Gordo observes an average nighttime temperature of 27.9°F (-2.3°C).Humidity
In December, the average relative humidity in Cerro Gordo, Illinois, is 79%.Rainfall
The month with the least rainfall in Cerro Gordo is December, when the rain falls for 8 days and typically collects 1.38" (35mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Cerro Gordo. In Cerro Gordo, in December, during 6.9 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, there are 29.3 snowfall days, and 8.78" (223mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:40 pm CST.
Sunshine
The average sunshine in December in Cerro Gordo, Illinois, is 4.5h.UV index
The months with the lowest UV index in Cerro Gordo are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cerro Gordo, IL
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in December
Cerro Gordo, IL
- 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 (29.92"Hg).
Average wind speed in December
Cerro Gordo, IL
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Cerro Gordo, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Cerro Gordo, IL
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days in December
Cerro Gordo, IL
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Cerro Gordo, IL
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cerro Gordo, IL
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (9.3 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
Cerro Gordo, IL
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Cerro Gordo, IL
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Cerro Gordo, IL
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Cerro Gordo, IL
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in December
Cerro Gordo, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
