December weather forecastRoyal Center, IN
December
Weather in December
December, the first month of the winter in Royal Center, is also a wintry month, with an average temperature varying between 26.6°F (-3°C) and 36.5°F (2.5°C).Temperature
Royal Center's December weather shows a moderate shift in high-temperatures, falling from November's chilly 47.7°F (8.7°C) to a cold 36.5°F (2.5°C). In the month of December, an average of 26.6°F (-3°C) marks the low-temperature.Humidity
In December, the average relative humidity is 82%.Rainfall
December is the month with the least rainfall in Royal Center, Indiana. Rain falls for 8.4 days and accumulates 1.02" (26mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Royal Center, in December, snow falls for 7.3 days, with typically accumulated 1.18" (30mm) of snow. In Royal Center, during the entire year, snow falls for 36.1 days and aggregates up to 7.8" (198mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:51 am and sunset at 5:18 pm. On the last day of December, sunrise is at 8:10 am and sunset at 5:28 pm EST.
Sunshine
The average sunshine in December is 4.1h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Royal Center, IN
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Royal Center, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Royal Center, 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
Royal Center, IN
- Average humidity in December: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Royal Center, IN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in December
Royal Center, IN
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in December
Royal Center, IN
- Average snowfall in December: 1.18"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Royal Center, IN
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Royal Center, IN
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Royal Center, IN
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in December
Royal Center, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Royal Center, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July, August and September (Cloud cover 34).
Average visibility in December
Royal Center, 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).
