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 onset of December results in a decrease in the average high-temperature, receding from a cool 51.3°F (10.7°C) in November to a cold 41.7°F (5.4°C). The average low-temperature, in December, in Yellowstone, is a subzero cold 30.2°F (-1°C).Humidity
February, May and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Yellowstone, Indiana, during December, the rain falls for 9.2 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 135.6 rainfall days, and 17.64" (448mm) of precipitation is accumulated.Snowfall
Months with snowfall in Yellowstone are January through April, November and December. In Yellowstone, Indiana, during December, snow falls for 5.1 days and regularly aggregates up to 0.79" (20mm) of snow. Throughout the year, in Yellowstone, there are 24.4 snowfall days, and 4.41" (112mm) of snow is accumulated.Daylight
December has the shortest days of the year in Yellowstone, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:45 am and sunset at 5:23 pm. On the last day of December, in Yellowstone, sunrise is at 8:04 am and sunset at 5:33 pm EST.
Sunshine
December has the least sunshine of the year in Yellowstone, with an average of 4.2h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Yellowstone. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is it in Yellowstone in December?
What are the most humid months in Yellowstone?
What is the average humidity in December in Yellowstone?
How many days does it rain in December in Yellowstone?
How much does it snow in Yellowstone in December?
What is the month with the shortest days in Yellowstone?
How many hours of daylight does Yellowstone have in December?
When are sunrise and sunset in December in Yellowstone?
What is the month with the least sunshine in Yellowstone?
How many hours of sunshine does Yellowstone have in December?
What is the month with the lowest UV index in Yellowstone?
What is the UV index reading in December in Yellowstone?
Average temperature in December
Yellowstone, IN
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Yellowstone, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Yellowstone, IN
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January, February and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Yellowstone, IN
- Average humidity in December: 81%
The months with the highest relative humidity are February, May and December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Yellowstone, IN
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Yellowstone, IN
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Yellowstone, IN
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Yellowstone, IN
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (6.6 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
Yellowstone, IN
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Yellowstone, IN
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Yellowstone, 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, November and December (UV index 2).
Average cloud cover in December
Yellowstone, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Yellowstone, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
Yellowstone, Indiana, USA
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