December weather forecastChatterton, IN
December
Weather in December
December, the first month of the winter in Chatterton, is also an icy month, with an average temperature varying between 27°F (-2.8°C) and 37°F (2.8°C).Temperature
Onset of December comes with a temperature decline, the average high falling from a frosty 48.2°F (9°C) in November to an icy 37°F (2.8°C). During December, Chatterton witnesses a consistent average low-temperature of 27°F (-2.8°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Chatterton, in December, it is raining for 7.8 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, in Chatterton, there are 141.9 rainfall days, and 18.07" (459mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 7.8 days. Throughout December, 1.3" (33mm) of snow is accumulated. In Chatterton, during the entire year, snow falls for 36.9 days and aggregates up to 7.13" (181mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:53 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:32 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading 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 UV index of 1 during December leads to these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chatterton, IN
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Chatterton, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chatterton, IN
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Chatterton, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Chatterton, IN
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in December
Chatterton, IN
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Chatterton, IN
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chatterton, IN
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chatterton, IN
- 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 18min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Chatterton, IN
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Chatterton, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Chatterton, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Chatterton, IN
- 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).
