December weather forecastIronton, OH
December
Weather in December
December, the first month of the winter in Ironton, is also a frosty month, with an average temperature fluctuating between 43.7°F (6.5°C) and 32°F (0°C).Temperature
As November transitions to December, the average high-temperature falls from a cool 53.1°F (11.7°C) to a chilly 43.7°F (6.5°C). In the month of December, the nighttime temperature in Ironton dips to a steady average of 32°F (0°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months in Ironton.Rainfall
In Ironton, in December, during 11.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Ironton, during the entire year, the rain falls for 146.5 days and collects up to 19.65" (499mm) of precipitation.Snowfall
Months with snowfall in Ironton are January through April, October through December. In Ironton, in December, during 6.5 snowfall days, 1.46" (37mm) of snow is typically accumulated. In Ironton, during the entire year, snow falls for 32.7 days and aggregates up to 7.56" (192mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:29 am and sunset at 5:10 pm. On the last day of December, sunrise is at 7:48 am and sunset at 5:19 pm EST.
Sunshine
In December, the average sunshine in Ironton is 4.1h.UV index
The months with the lowest UV index in Ironton are January, February 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 unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ironton, OH
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Ironton, OH
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Ironton, OH
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Ironton, OH
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Ironton, OH
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in December
Ironton, OH
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in December
Ironton, OH
- Average snowfall in December: 1.46"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ironton, OH
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is January (9.7 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
Ironton, OH
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Ironton, OH
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in December
Ironton, OH
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Ironton, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Ironton, OH
- Average visibility in December: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
