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
As November shifts into December in Peoria, Illinois, a slight alteration in temperatures is observed, with average highs reducing from a frosty 48.4°F (9.1°C) to a cold 36.5°F (2.5°C). In Peoria, the expected average low-temperature for December is a subzero cold 26.1°F (-3.3°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Peoria, in December, it is raining for 6.2 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, in Peoria, there are 129.2 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
Months with snowfall in Peoria, Illinois, are January through April, October through December. In Peoria, during December, snow falls for 5.9 days and regularly aggregates up to 1.18" (30mm) of snow. Throughout the year, there are 26.7 snowfall days, and 7.09" (180mm) of snow is accumulated.Daylight
December has the shortest days of the year in Peoria, with an average of 9h and 18min of daylight.On the first day of December in Peoria, sunrise is at 7:03 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December is 4.4h.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 exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Peoria in December?
What is the average humidity in December in Peoria?
How much does it rain in Peoria in December?
How much does it snow in Peoria in December?
What is the month with the shortest days in Peoria?
How many hours of daylight does Peoria have in December?
When is the sunrise / sunset in December in Peoria?
How long on average sun shines in December in Peoria?
What is the month with the lowest UV index in Peoria?
How high is the UV index in December in Peoria?
Average temperature in December
Peoria, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Peoria, IL
- Average pressure in December: 30.11"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
Peoria, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Peoria, IL
- Average humidity in December: 80%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Peoria, IL
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Peoria, IL
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Peoria, IL
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Peoria, IL
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (9 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
Peoria, 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 18min).
- Average sunshine in December: 4h and 2min
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 0min).
Average sunshine days in December
Peoria, IL
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Peoria, 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
Peoria, IL
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Peoria, 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).
Peoria, Illinois, USA
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