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 average high-temperature decreases in December, shifting from a cool 52.2°F (11.2°C) in November to a cold 41.9°F (5.5°C). During December nights, Lawrenceville records an average temperature of 30.9°F (-0.6°C).Humidity
In Lawrenceville, Illinois, the average relative humidity in December is 79%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Lawrenceville, during the entire year, the rain falls for 160.3 days and collects up to 34.33" (872mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Lawrenceville, in December, during 4.3 snowfall days, 1.26" (32mm) of snow is typically accumulated. In Lawrenceville, during the entire year, snow falls for 21.7 days and aggregates up to 5.87" (149mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December leads to these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
Is December cold in Lawrenceville?
What is the average humidity in December in Lawrenceville?
How many days does it rain in December in Lawrenceville?
How much does it snow in Lawrenceville in December?
What is the month with the shortest days in Lawrenceville?
How many hours of daylight does Lawrenceville have in December?
What time are sunrise and sunset in December in Lawrenceville?
How long on average sun shines in December in Lawrenceville?
What are the months with the lowest UV index in Lawrenceville?
How high is the UV index in December in Lawrenceville?
Average temperature in December
Lawrenceville, IL
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Lawrenceville, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Lawrenceville, IL
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Lawrenceville, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Lawrenceville, IL
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Lawrenceville, IL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (9.4 days).
Average snowfall in December
Lawrenceville, IL
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lawrenceville, IL
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lawrenceville, IL
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
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 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Lawrenceville, IL
- Average sunshine days in December: 16 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in December
Lawrenceville, 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
Lawrenceville, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Lawrenceville, 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).
Lawrenceville, Illinois, USA
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