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
The onset of December results in a decrease in the average high-temperature, receding from a frosty 49.5°F (9.7°C) in November to a cold 39°F (3.9°C). An average low-temperature of 28.6°F (-1.9°C) is anticipated throughout the nights during December.Humidity
The months with the highest humidity are January, July and December, with an average relative humidity of 82%.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. In Circleville, during the entire year, the rain falls for 172.9 days and collects up to 34.88" (886mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Circleville, during December, snow falls for 10.5 days and regularly aggregates up to 3.31" (84mm) of snow. Throughout the year, there are 42.9 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:43 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:27 pm EST.
Sunshine
In Circleville, the average sunshine in December is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk 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:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Circleville have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Circleville, IN
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Circleville, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Circleville, IN
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Circleville, IN
- Average humidity in December: 82%
The months with the highest relative humidity are January, July and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Circleville, IN
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Circleville, IN
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in December
Circleville, IN
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Circleville, IN
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Circleville, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Circleville, IN
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in December
Circleville, 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
Circleville, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Circleville, IN
- 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).
Circleville, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location