December weather forecastCorydon, IA
December
Weather in December
The first month of the winter, December, is also a wintry month in Corydon, Iowa, with an average temperature ranging between max 35.6°F (2°C) and min 23.5°F (-4.7°C).Temperature
A decrease in the average high-temperature is observed during December, shifting from a chilly 48.4°F (9.1°C) in November to a cold 35.6°F (2°C). Corydon cools down to an average low-temperature of 23.5°F (-4.7°C) throughout the month of December.Humidity
In December, the average relative humidity is 79%.Rainfall
January and December are months with the least rain when the rain falls for 5.5 days and typically aggregates up to 0.71" (18mm) of rain.Snowfall
January through May, October through December are months with snowfall in Corydon, Iowa. In Corydon, Iowa, in December, snow falls for 5.7 days, with typically accumulated 0.98" (25mm) of snow. In Corydon, during the entire year, snow falls for 28.4 days and aggregates up to 11.34" (288mm) of snow.Daylight
The month with the shortest days in Corydon is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:55 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
In Corydon, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Enhance your sun protection with tightly woven, yet airy clothing. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Corydon, IA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Corydon, 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
Corydon, IA
- Average wind speed in December: 10mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Corydon, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Corydon, IA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in December
Corydon, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Corydon, IA
- Average snowfall in December: 0.98"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Corydon, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Corydon, IA
- Average daylight in December: 9h and 18min
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 18min).
- 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
Corydon, IA
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Corydon, 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
Corydon, IA
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Corydon, 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).
