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 December arrives, Nelson's weather displays a decrease in high-temperatures, transitioning from November's frosty 45.5°F (7.5°C) to a wintry 33.8°F (1°C). Throughout the month of December, Nelson expects an average low of 23.2°F (-4.9°C).Humidity
In December, the average relative humidity in Nelson, Illinois, is 82%.Rainfall
In Nelson, Illinois, in December, during 5.7 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Nelson, during the entire year, the rain falls for 130.2 days and collects up to 17.36" (441mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Nelson, in December, during 7.4 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, there are 34.2 snowfall days, and 7.87" (200mm) of snow is accumulated.Daylight
The month with the shortest days in Nelson is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:28 pm. On the last day of December, in Nelson, sunrise is at 7:25 am and sunset at 4:37 pm CST.
Sunshine
In December, the average sunshine in Nelson, Illinois, is 4.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, the UV index of 1 transforms into the following advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is it in Nelson in December?
What is the average humidity in December in Nelson?
How much does it rain in Nelson in December?
How many days does it snow in December in Nelson?
What is the month with the shortest days in Nelson?
What is the average length of the day in December in Nelson?
What time are sunrise and sunset in December in Nelson?
How long on average sun shines in December in Nelson?
What is the month with the lowest UV index in Nelson?
What is the UV index intensity in December in Nelson?
Average temperature in December
Nelson, IL
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Nelson, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Nelson, IL
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Nelson, IL
- Average humidity in December: 82%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Nelson, IL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in December
Nelson, IL
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Nelson, IL
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Nelson, IL
- Average snowfall days in December: 7.4 days
The month with the highest number of snowfall days is January (10.2 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
Nelson, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Nelson, IL
- Average sunshine days in December: 18.8 days
The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Nelson, IL
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Nelson, IL
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
Nelson, 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).
Nelson, Illinois, USA
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