December weather forecastColumbus, PA
December
Weather in December
December, the first month of the winter in Columbus, is also an icy month, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 25.7°F (-3.5°C).Temperature
In Columbus, the average high-temperature in December decreases from a chilly 43.9°F (6.6°C) in November to a cold 34.7°F (1.5°C). During December, Columbus's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a freezing cold 25.7°F (-3.5°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In December, the rain falls for 8.4 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. In Columbus, during the entire year, the rain falls for 164.4 days and collects up to 31.46" (799mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 18.6 days and typically aggregates up to 10.87" (276mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:27 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:57 pm EST.
Sunshine
In Columbus, the average sunshine in December is 2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Columbus, PA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Columbus, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Columbus, PA
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in December
Columbus, PA
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (90%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in December
Columbus, PA
- Average rainfall in December: 2.95"
The wettest months (with the highest rainfall) are April and October (3.07").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Columbus, PA
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (7.1 days).
Average snowfall in December
Columbus, PA
- Average snowfall in December: 10.87"
The month with the highest snowfall is December (10.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Columbus, PA
- Average snowfall days in December: 18.6 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Columbus, PA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Columbus, PA
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is June (11.9 days).
The month with the least sunshine days is January (5.9 days).
Average UV index in December
Columbus, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Columbus, PA
- Average cloud cover in December: 80
The month with the most cloud cover is January (Cloud cover 82).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Columbus, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
