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 coincides with a reduction in the average high-temperature, falling from a cool 50.4°F (10.2°C) in November to a cold 38.7°F (3.7°C). Lima experiences a steady low-temperature of 26.6°F (-3°C) throughout December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Lima, during December, the rain falls for 6.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, there are 137.5 rainfall days, and 27.68" (703mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Lima, in December, snow falls for 5.3 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 28.4 snowfall days, and 12.44" (316mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December is 4.9h.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 estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow 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
Is December cold?
What is the average humidity in December?
How much 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 Lima have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Lima have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Lima, IL
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Lima, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Lima, IL
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Lima, IL
- Average humidity in December: 77%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Lima, IL
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Lima, IL
- Average rainfall days in December: 6.5 days
The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Lima, IL
- Average snowfall in December: 2.05"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lima, IL
- Average snowfall days in December: 5.3 days
The month with the highest number of snowfall days is January (9.3 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
Lima, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Lima, IL
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Lima, 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
Lima, IL
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Lima, 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).
Lima, Illinois, USA
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