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's arrival comes with a decrease in the average high-temperature, moving from a frosty 43.3°F (6.3°C) in November to a freezing cold 30.9°F (-0.6°C). Nighttime temperature lowers to an average of 20.5°F (-6.4°C) in December.Humidity
In Platteville, the average relative humidity in December is 84%.Rainfall
In Platteville, in December, during 6.8 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, in Platteville, there are 140.6 rainfall days, and 28.66" (728mm) of precipitation is accumulated.Snowfall
Months with snowfall in Platteville are January through April, October through December. In December, in Platteville, it is snowing for 9.4 days. Throughout December, 3.43" (87mm) of snow is accumulated. Throughout the year, in Platteville, there are 47.9 snowfall days, and 18.46" (469mm) of snow is accumulated.Daylight
The month with the shortest days in Platteville is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:13 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:38 pm CST.
Sunshine
The average sunshine in December in Platteville is 4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Platteville. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Platteville?
What is the average humidity in December in Platteville?
How many days does it rain in December in Platteville?
How much does it snow in Platteville in December?
What is the month with the shortest days in Platteville?
How many hours of daylight does Platteville have in December?
When are sunrise and sunset in December in Platteville?
How many hours of sunshine does Platteville have in December?
When is the lowest UV index in Platteville?
How high is the UV index in December in Platteville?
Average temperature in December
Platteville, WI
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Platteville, 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
Platteville, WI
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Platteville, WI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Platteville, WI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in December
Platteville, WI
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Platteville, WI
- Average snowfall in December: 3.43"
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Platteville, WI
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Platteville, 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 month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Platteville, WI
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in December
Platteville, 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
Platteville, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Platteville, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Platteville, Wisconsin, USA
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