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 weather is marked by a drop in the average high-temperature, falling from a chilly 49.3°F (9.6°C) in November to a wintry 38.3°F (3.5°C). Valley Mills, during the nights of December, experiences an average temperature drop to a subzero cold 28.2°F (-2.1°C).Humidity
With an average relative humidity of 82%, December is the most humid month in Valley Mills.Rainfall
In Valley Mills, in December, during 8.9 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Valley Mills, during the entire year, the rain falls for 146.4 days and collects up to 21.14" (537mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall is December, when snow falls for 6.2 days and typically aggregates up to 2.28" (58mm) of snow.Daylight
The month with the shortest days in Valley Mills, Indiana, is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:47 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:30 pm EST.
Sunshine
In Valley Mills, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index in Valley Mills are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How cold is December in Valley Mills?
What is the most humid month in Valley Mills?
What is the average humidity in December in Valley Mills?
How much does it rain in Valley Mills in December?
When does it snow the most in Valley Mills?
How much does it snow in Valley Mills in December?
What is the month with the shortest days in Valley Mills?
How many hours of daylight does Valley Mills have in December?
When are sunrise and sunset in December in Valley Mills?
How long on average sun shines in December in Valley Mills?
What are the months with the lowest UV index in Valley Mills?
What is the UV index intensity in December in Valley Mills?
Average temperature in December
Valley Mills, IN
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Valley Mills, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Valley Mills, IN
- Average wind speed in December: 9mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Valley Mills, IN
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Valley Mills, IN
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Valley Mills, IN
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Valley Mills, IN
- Average snowfall in December: 2.28"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Valley Mills, IN
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Mills, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Valley Mills, IN
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Valley Mills, IN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Valley Mills, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Valley Mills, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Valley Mills, Indiana, USA
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