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
Gilman's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 47.8°F (8.8°C) to an icy 36.5°F (2.5°C). Throughout December, an average low-temperature of 26.2°F (-3.2°C) is experienced.Humidity
The average relative humidity in December in Gilman is 81%.Rainfall
January, February and December are months with the least rain in Gilman, Illinois, when the rain falls for 7.1 days and typically aggregates up to 0.91" (23mm) of rain.Snowfall
Months with snowfall are January through April, November and December. In Gilman, in December, during 6.1 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Gilman, during the entire year, snow falls for 30.7 days and aggregates up to 8.19" (208mm) 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 December, sunrise is at 6:57 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine in Gilman is 4.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Boost your sun resistance with garments that are densely woven yet spacious. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Gilman in December?
What is the average humidity in December in Gilman?
What is the driest month in Gilman?
How much does it rain in Gilman in December?
How many days does it snow in December in Gilman?
What is the month with the shortest days in Gilman?
What is the average length of the day in December in Gilman?
When is the sunrise / sunset in December in Gilman?
How many hours of sunshine does Gilman have in December?
When is the lowest UV index in Gilman?
What is the UV index reading in December in Gilman?
Average temperature in December
Gilman, IL
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Gilman, 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 (29.92"Hg).
Average wind speed in December
Gilman, IL
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Gilman, 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 (71%).
Average rainfall in December
Gilman, IL
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").
Average rainfall days in December
Gilman, IL
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in December
Gilman, IL
- Average snowfall in December: 1.02"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Gilman, IL
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is January (9.6 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
Gilman, 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 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Gilman, IL
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Gilman, 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
Gilman, IL
- Average cloud cover in December: 56
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 33).
Average visibility in December
Gilman, 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).
Gilman, Illinois, USA
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