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
The shift from November to December involves a decrease in the average high-temperature, from a fresh 50°F (10°C) to a cold 38.7°F (3.7°C). During the nights in December, Buffalo experiences a consistent average temperature of 28.2°F (-2.1°C).Humidity
In December, the average relative humidity is 78%.Rainfall
December is the month with the least rainfall in Buffalo. Rain falls for 6.6 days and accumulates 0.83" (21mm) of precipitation.Snowfall
Months with snowfall in Buffalo are January through April, November and December. In Buffalo, in December, snow falls for 4.8 days, with typically accumulated 0.59" (15mm) of snow. Throughout the year, in Buffalo, there are 24.5 snowfall days, and 5.51" (140mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December in Buffalo, Illinois, sunrise is at 7:00 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine in Buffalo, Illinois, is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
Is December cold in Buffalo?
What is the average humidity in December in Buffalo?
What is the driest month in Buffalo?
How many days does it rain in December in Buffalo?
How much does it snow in Buffalo in December?
What is the month with the shortest days in Buffalo?
How many hours of daylight does Buffalo have in December?
What time are sunrise and sunset in December in Buffalo?
How many hours of sunshine does Buffalo have in December?
What is the month with the lowest UV index in Buffalo?
What is the UV index reading in December in Buffalo?
Average temperature in December
Buffalo, IL
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in December
Buffalo, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Buffalo, IL
- Average wind speed in December: 9.8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Buffalo, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Buffalo, IL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days in December
Buffalo, IL
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Buffalo, IL
- Average snowfall in December: 0.59"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Buffalo, IL
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is January (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
Buffalo, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Buffalo, IL
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in December
Buffalo, IL
- Average UV index in December: 2
The months with the highest UV index are 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
Buffalo, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in December
Buffalo, 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).
Buffalo, Illinois, USA
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