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 comes with a decrease in the average high-temperature, falling from a fresh 51.3°F (10.7°C) in November to a cold 41.2°F (5.1°C). Throughout the December nights, Rose Hill encounters a low-temperature of 29.7°F (-1.3°C).Humidity
The average relative humidity in December is 79%.Rainfall
In December, the rain falls for 10.6 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 158.3 rainfall days, and 35.12" (892mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 3.8 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, there are 20.7 snowfall days, and 7.13" (181mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 6:53 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:40 pm CST.
Sunshine
The average sunshine in December is 4.5h.UV index
The months with the lowest UV index 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 threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days 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 Rose Hill have 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 in Rose Hill?
Average temperature in December
Rose Hill, IL
- Average high temperature in December: 41.2°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Rose Hill, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Rose Hill, IL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Rose Hill, IL
- Average humidity in December: 79%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Rose Hill, IL
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is April (5.04").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Rose Hill, IL
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and February (9.3 days).
Average snowfall in December
Rose Hill, IL
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rose Hill, IL
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.3 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
Rose Hill, IL
- 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Rose Hill, IL
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Rose Hill, IL
- 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
Rose Hill, IL
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Rose Hill, IL
- 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).
Rose Hill, Illinois, USA
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