December weather forecastNewark, IL
December
Weather in December
The first month of the winter, December, is still a cold month in Newark, Illinois, with an average temperature fluctuating between 34.7°F (1.5°C) and 24.8°F (-4°C).Temperature
The start of December signals a decrease in the average high-temperature, transitioning from a frosty 46.8°F (8.2°C) in November to a wintry 34.7°F (1.5°C). Throughout the month of December, Newark witnesses an average temperature of 24.8°F (-4°C).Humidity
In Newark, the average relative humidity in December is 82%.Rainfall
In Newark, in December, it is raining for 4.7 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 97.4 rainfall days, and 8.07" (205mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Newark, in December, snow falls for 4.8 days, with typically accumulated 0.31" (8mm) of snow. In Newark, during the entire year, snow falls for 26.1 days and aggregates up to 3.54" (90mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Newark.On the first day of the month, sunrise is at 7:02 am and sunset at 4:25 pm. On the last day of December, in Newark, sunrise is at 7:20 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine is 4.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Newark, IL
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Newark, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Newark, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Newark, IL
- Average humidity in December: 82%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Newark, IL
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is November (0.35").
Average rainfall days in December
Newark, IL
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).
Average snowfall in December
Newark, IL
- Average snowfall in December: 0.31"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Newark, IL
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Newark, IL
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Newark, IL
- Average sunshine days in December: 23 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in December
Newark, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Newark, IL
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Newark, 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).
