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
December's onset brings a reduction in the average high-temperature, from a frosty 47.3°F (8.5°C) in November to an icy 35.6°F (2°C). The average low-temperature of 25.3°F (-3.7°C) is witnessed during December.Humidity
In McNabb, the average relative humidity in December is 81%.Rainfall
January and December are months with the least rain in McNabb when the rain falls for 7.5 days and typically aggregates up to 1.57" (40mm) of rain.Snowfall
Months with snowfall are January through April, October through December. In McNabb, in December, snow falls for 7 days, with typically accumulated 2.28" (58mm) of snow. In McNabb, during the entire year, snow falls for 36.7 days and aggregates up to 14.09" (358mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:03 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December is 4.2h.UV index
In McNabb, Illinois, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in McNabb in December?
What is the average humidity in December in McNabb?
What is the driest month in McNabb?
How many days does it rain in December in McNabb?
How much does it snow in McNabb in December?
What is the month with the shortest days in McNabb?
What is the average length of the day in December in McNabb?
What time are sunrise and sunset in December in McNabb?
How long on average sun shines in December in McNabb?
What is the UV index intensity in December in McNabb?
Average temperature in December
McNabb, IL
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
McNabb, IL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
McNabb, IL
- Average wind speed in December: 9.7mph
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
McNabb, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
McNabb, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").
Average rainfall days in December
McNabb, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
McNabb, IL
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
McNabb, IL
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (11.2 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
McNabb, IL
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
McNabb, IL
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
McNabb, IL
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
McNabb, IL
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
McNabb, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
McNabb, Illinois, USA
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