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
December's onset brings a reduction in the average high-temperature, from a chilly 48.2°F (9°C) in November to an icy 37.2°F (2.9°C). December nights observe an average temperature dip to a subzero cold 27.3°F (-2.6°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 83%.Rainfall
In Swayzee, during December, the rain falls for 6.2 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 123.4 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 6.5 days. Throughout December, 0.87" (22mm) of snow is accumulated. In Swayzee, during the entire year, snow falls for 32.4 days and aggregates up to 4.41" (112mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:48 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 5:26 pm EST.
Sunshine
In Swayzee, the average sunshine in December is 3.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the UV index of 1 transforms into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Swayzee have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Swayzee have in December?
When is the lowest UV index?
What is the UV index intensity in December in Swayzee?
Average temperature in December
Swayzee, IN
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Swayzee, IN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Swayzee, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Swayzee, 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 (73%).
Average rainfall in December
Swayzee, IN
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in December
Swayzee, IN
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
Swayzee, IN
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Swayzee, IN
- Average snowfall days in December: 6.5 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
Swayzee, 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 18min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Swayzee, IN
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in December
Swayzee, IN
- 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
Swayzee, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in December
Swayzee, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Swayzee, Indiana, USA
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