December weather forecastPalmyra, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Palmyra, Wisconsin, with an average temperature varying between 31.1°F (-0.5°C) and 21.2°F (-6°C).Temperature
With the onset of December, Palmyra experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 43.7°F (6.5°C) in November to a freezing cold 31.1°F (-0.5°C). During the month of December, the nighttime temperature falls to an average of 21.2°F (-6°C).Humidity
In Palmyra, the average relative humidity in December is 84%.Rainfall
The month with the least rainfall in Palmyra is December, when the rain falls for 6.5 days and typically collects 0.55" (14mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Palmyra, in December, snow falls for 9.5 days, with typically accumulated 0.98" (25mm) of snow. In Palmyra, during the entire year, snow falls for 46.4 days and aggregates up to 7.48" (190mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:06 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:30 pm CST.
Sunshine
In Palmyra, the average sunshine in December is 3.8h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Palmyra, WI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Palmyra, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Palmyra, WI
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Palmyra, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Palmyra, WI
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is December (0.55").
Average rainfall days in December
Palmyra, WI
- Average rainfall days in December: 6.5 days
The months with the highest number of rainy days are May and July (15.7 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in December
Palmyra, WI
- Average snowfall in December: 0.98"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Palmyra, WI
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Palmyra, WI
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Palmyra, WI
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Palmyra, WI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Palmyra, WI
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Palmyra, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
