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
Hazel Crest experiences a temperature shift at the start of December, with average high-temperatures adjusting from a chilly 46.9°F (8.3°C) in November to a wintry 35.6°F (2°C). Throughout December, the nighttime temperature averages to a subzero cold 25.9°F (-3.4°C).Humidity
In Hazel Crest, Illinois, the average relative humidity in December is 81%.Rainfall
December is the month with the least rainfall. Rain falls for 7.9 days and accumulates 1.54" (39mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Hazel Crest, during December, snow falls for 9.1 days and regularly aggregates up to 2.76" (70mm) of snow. In Hazel Crest, during the entire year, snow falls for 44.6 days and aggregates up to 16.46" (418mm) of snow.Daylight
December has the shortest days of the year in Hazel Crest, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:30 pm CST.
Sunshine
In December, the average sunshine is 4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is it in Hazel Crest in December?
What is the average humidity in December in Hazel Crest?
What is the driest month in Hazel Crest?
How many days does it rain in December in Hazel Crest?
How many days does it snow in December in Hazel Crest?
What is the month with the shortest days in Hazel Crest?
What is the average length of the day in December in Hazel Crest?
What time are sunrise and sunset in December in Hazel Crest?
How long on average sun shines in December in Hazel Crest?
What is the month with the lowest UV index in Hazel Crest?
How high is the UV index in December in Hazel Crest?
Average temperature in December
Hazel Crest, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.9°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 (18.9°F).
Average pressure in December
Hazel Crest, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Hazel Crest, IL
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Hazel Crest, IL
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Hazel Crest, IL
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in December
Hazel Crest, IL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in December
Hazel Crest, IL
- Average snowfall in December: 2.76"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Hazel Crest, IL
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hazel Crest, IL
- Average daylight in December: 9h and 1min
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 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Hazel Crest, IL
- Average sunshine days in December: 15 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in December
Hazel Crest, IL
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Hazel Crest, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Hazel Crest, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Hazel Crest, Illinois, USA
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