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 transition into December involves a decrease in the average high-temperature, falling from a chilly 48.9°F (9.4°C) in November to a cold 38.1°F (3.4°C). In December, the temperature drops to an average of 28.2°F (-2.1°C) at night.Humidity
The months with the highest humidity are January and December, with an average relative humidity of 83%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 154.1 rainfall days, and 23.74" (603mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is December, when snow falls for 7.9 days and typically aggregates up to 2.28" (58mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:42 am and sunset at 5:15 pm. On the last day of December, sunrise is at 8:00 am and sunset at 5:24 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Spring Grove?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / 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
Spring Grove, IN
- Average high temperature in December: 38.1°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 (32.5°F).
- Average low temperature in December: 28.2°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 (20.8°F).
Average pressure in December
Spring Grove, IN
- 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
Spring Grove, IN
- 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 (5.8mph).
Average humidity in December
Spring Grove, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Spring Grove, IN
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in December
Spring Grove, IN
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Spring Grove, IN
- Average snowfall in December: 2.28"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Spring Grove, IN
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (9.2 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
Spring Grove, IN
- 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 42min).
Average sunshine days in December
Spring Grove, IN
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in December
Spring Grove, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Spring Grove, 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 30).
Average visibility in December
Spring Grove, IN
- 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).
Spring Grove, Indiana, USA
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