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
Arrival of December comes with a reduction in the average high-temperature, falling from a frosty 43.2°F (6.2°C) in November to a freezing cold 30.2°F (-1°C). An average temperature of 19.9°F (-6.7°C) marks the nights in Lancaster in December.Humidity
In Lancaster, the average relative humidity in December is 84%.Rainfall
In Lancaster, during December, the rain falls for 5.5 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Lancaster, Wisconsin, during the entire year, the rain falls for 134.2 days and collects up to 27.32" (694mm) of precipitation.Snowfall
Months with snowfall in Lancaster are January through April, October through December. In Lancaster, in December, during 9.4 snowfall days, 3.54" (90mm) of snow is typically accumulated. In Lancaster, during the entire year, snow falls for 46.7 days and aggregates up to 19.49" (495mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Lancaster.On the first day of the month, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of December, in Lancaster, sunrise is at 7:33 am and sunset at 4:38 pm CST.
Sunshine
In Lancaster, the average sunshine in December is 4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Lancaster in December?
What is the average humidity in December in Lancaster?
How many days does it rain in December in Lancaster?
How much does it snow in Lancaster in December?
What is the month with the shortest days in Lancaster?
How many hours of daylight does Lancaster have in December?
What time are sunrise and sunset in December in Lancaster?
How long on average sun shines in December in Lancaster?
What is the month with the lowest UV index in Lancaster?
What is the UV index intensity in December in Lancaster?
Average temperature in December
Lancaster, WI
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in December
Lancaster, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Lancaster, WI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Lancaster, WI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in December
Lancaster, WI
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Lancaster, WI
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (18.5 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in December
Lancaster, WI
- Average snowfall in December: 3.54"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lancaster, WI
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (12.3 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
Lancaster, WI
- Average daylight in December: 9h and 1min
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: 4h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Lancaster, WI
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10 days).
Average UV index in December
Lancaster, WI
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Lancaster, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Lancaster, 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).
Lancaster, Wisconsin, USA
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