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
A moderate decline in the average high-temperature is seen during December, decreasing from a wintry 38.3°F (3.5°C) in November to a freezing cold 24.8°F (-4°C). Birnamwood encounters a steady low-temperature average of 15.4°F (-9.2°C) throughout the month of December.Humidity
In December, the average relative humidity is 89%.Rainfall
In Birnamwood, in December, during 4.6 rainfall days, 0.59" (15mm) of precipitation is typically accumulated. Throughout the year, there are 103 rainfall days, and 11.02" (280mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Birnamwood, in December, during 12.7 snowfall days, 1.85" (47mm) of snow is typically accumulated. Throughout the year, there are 68.7 snowfall days, and 11.18" (284mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 4:16 pm. On the last day of December, sunrise is at 7:34 am and sunset at 4:25 pm CST.
Sunshine
The average sunshine in December in Birnamwood is 3.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Birnamwood have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Birnamwood have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Birnamwood, WI
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in December
Birnamwood, WI
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Birnamwood, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Birnamwood, WI
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Birnamwood, WI
- Average rainfall in December: 0.59"
The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Birnamwood, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in December
Birnamwood, WI
- Average snowfall in December: 1.85"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Birnamwood, WI
- Average snowfall days in December: 12.7 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Birnamwood, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Birnamwood, WI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in December
Birnamwood, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Birnamwood, WI
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Birnamwood, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Birnamwood, Wisconsin, USA
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