December weather forecastChillicothe, OH
December
Weather in December
December welcomes winter full swing into Chillicothe. This sees colder temperatures, dwindling daylight, and an increase in snowfall to 1.57" (40mm). The reduction in hours of sunshine, paired with a rise in cloud percentage, underscores the wintry setting. Riding this trend is the increased wind speed with gusts reaching 12.5mph (20.1km/h). As days turn progressively frosty, the climate harmonizes with the festive winter scenery, concluding the weather narrative for the year.Temperature
The transition into December indicates a reduction in the average high-temperature, down to an icy 41.5°F (5.3°C) from November's cool 51.1°F (10.6°C). In the month of December, Chillicothe experiences an average low-temperature of 30.4°F (-0.9°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Chillicothe, in December, it is raining for 11 days, with typically 2.4" (61mm) of accumulated precipitation. In Chillicothe, during the entire year, the rain falls for 156.4 days and collects up to 25.63" (651mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Chillicothe, in December, snow falls for 6.8 days, with typically accumulated 1.57" (40mm) of snow. Throughout the year, there are 31.6 snowfall days, and 8.94" (227mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:33 am and sunset at 5:09 pm. On the last day of December, in Chillicothe, sunrise is at 7:51 am and sunset at 5:18 pm EST.
Sunshine
In Chillicothe, the average sunshine in December is 4.2h.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 health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 1 during December translates into the following guidance:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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
Average temperature in December
Chillicothe, OH
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Chillicothe, OH
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Chillicothe, OH
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Chillicothe, OH
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Chillicothe, OH
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Chillicothe, OH
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in December
Chillicothe, OH
- Average snowfall in December: 1.57"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chillicothe, OH
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Chillicothe, OH
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Chillicothe, OH
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Chillicothe, OH
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Chillicothe, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Chillicothe, OH
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, May, July and September (5mi).
