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
Arrival of December comes with a reduction in the average high-temperature, falling from a chilly 49.1°F (9.5°C) in November to a cold 38.8°F (3.8°C). An average temperature of 28.8°F (-1.8°C) marks the nights in Vandalia in December.Humidity
In December, the average relative humidity in Vandalia is 82%.Rainfall
In Vandalia, in December, during 8.7 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Vandalia, during the entire year, the rain falls for 138.9 days and collects up to 17.01" (432mm) of precipitation.Snowfall
Months with snowfall in Vandalia, Ohio, are January through April, October through December. In Vandalia, Ohio, in December, snow falls for 7.2 days, with typically accumulated 0.91" (23mm) of snow. In Vandalia, during the entire year, snow falls for 33.2 days and aggregates up to 4.96" (126mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:39 am and sunset at 5:12 pm. On the last day of December, in Vandalia, sunrise is at 7:58 am and sunset at 5:22 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
The months with the lowest UV index in Vandalia are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold does it get in Vandalia in December?
What is the average humidity in December in Vandalia?
How much does it rain in Vandalia in December?
How much does it snow in Vandalia in December?
What is the month with the shortest days in Vandalia?
What is the average length of the day in December in Vandalia?
What time are sunrise and sunset in December in Vandalia?
How many hours of sunshine does Vandalia have in December?
What is the month with the lowest UV index in Vandalia?
What is the UV index reading in December in Vandalia?
Average temperature in December
Vandalia, OH
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 28.8°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 (21.2°F).
Average pressure in December
Vandalia, OH
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Vandalia, OH
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Vandalia, OH
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Vandalia, OH
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January, February and November (0.98").
Average rainfall days in December
Vandalia, OH
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Vandalia, OH
- Average snowfall in December: 0.91"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Vandalia, OH
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vandalia, OH
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Vandalia, OH
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Vandalia, OH
- Average UV index in December: 2
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Vandalia, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Vandalia, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Vandalia, Ohio, USA
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