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 involves a decrease in temperature, down from a fresh 52.3°F (11.3°C) in November to a wintry 41.5°F (5.3°C). Pierron throughout December, experiences an average nighttime temperature of 30°F (-1.1°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In Pierron, in December, during 5.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Pierron, there are 110.6 rainfall days, and 12.01" (305mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Pierron. December is the month with the most snowfall in Pierron. Snow falls for 3.1 days and accumulates 0.94" (24mm) of snow.Daylight
December has the shortest days of the year in Pierron, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 6:58 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December in Pierron is 4.8h.UV index
The months with the lowest UV index in Pierron are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Pierron?
What is the average humidity in December in Pierron?
How much does it rain in Pierron in December?
What is the snowiest month in Pierron?
How many days does it snow in December in Pierron?
What is the month with the shortest days in Pierron?
How many hours of daylight does Pierron have in December?
What time are sunrise and sunset in December in Pierron?
How many hours of sunshine does Pierron have in December?
What is the month with the lowest UV index in Pierron?
What is the UV index reading in December in Pierron?
Average temperature in December
Pierron, IL
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Pierron, IL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Pierron, IL
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Pierron, IL
- Average humidity in December: 77%
The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Pierron, IL
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in December
Pierron, IL
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are January and December (5.9 days).
Average snowfall in December
Pierron, IL
- Average snowfall in December: 0.94"
The month with the highest snowfall is December (0.94").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Pierron, IL
- Average snowfall days in December: 3.1 days
The months with the highest number of snowfall days are January and February (4.8 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
Pierron, IL
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in December
Pierron, IL
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (14.5 days).
Average UV index in December
Pierron, IL
- Average UV index in December: 2
The months with the highest UV index are May, 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
Pierron, IL
- Average cloud cover in December: 49
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July, August and September (Cloud cover 28).
Average visibility in December
Pierron, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Pierron, Illinois, USA
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