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 entails a temperature shift, as the average high-temperature decreases from a frosty 49.6°F (9.8°C) in November to a wintry 38.3°F (3.5°C). In December, New Holland records an average nighttime temperature of 27.1°F (-2.7°C).Humidity
In December, the average relative humidity is 78%.Rainfall
December is the month with the least rainfall. Rain falls for 8.1 days and accumulates 1.46" (37mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In New Holland, in December, during 6 snowfall days, 1.65" (42mm) of snow is typically accumulated. In New Holland, during the entire year, snow falls for 31.9 days and aggregates up to 11.06" (281mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in New Holland.On the first day of the month, sunrise is at 7:02 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:42 pm CST.
Sunshine
The average sunshine in December is 4.6h.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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How many days 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 are the months with the lowest UV index in New Holland?
How high is the UV index in December?
Average temperature in December
New Holland, IL
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.1°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 (19.9°F).
Average pressure in December
New Holland, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
New Holland, IL
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
New Holland, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
New Holland, IL
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in December
New Holland, IL
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
New Holland, IL
- Average snowfall in December: 1.65"
The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
New Holland, IL
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (10.7 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
New Holland, IL
- 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
New Holland, IL
- Average sunshine days in December: 18 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
New Holland, 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
New Holland, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in December
New Holland, IL
- 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).
New Holland, Illinois, USA
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