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 comes with a drop in the average high-temperature, falling from November's fresh 52.2°F (11.2°C) to an icy 42.1°F (5.6°C). Throughout December, the average low-temperature in Decker dips to a freezing cold 30.9°F (-0.6°C).Humidity
In December, the average relative humidity in Decker is 79%.Rainfall
In Decker, Indiana, during December, the rain falls for 4.9 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Decker, during the entire year, the rain falls for 89 days and collects up to 7.6" (193mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Decker. In Decker, Indiana, during December, snow falls for 2.3 days and regularly aggregates up to 0.12" (3mm) of snow. In Decker, during the entire year, snow falls for 13.3 days and aggregates up to 0.91" (23mm) of snow.Daylight
The month with the shortest days in Decker is December, with an average of 9h and 30min of daylight.On the first day of December in Decker, Indiana, sunrise is at 7:49 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:39 pm EST.
Sunshine
The month with the least sunshine in Decker, Indiana, is December, with an average of 4.5h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold does it get in Decker in December?
What is the average humidity in December in Decker?
How much does it rain in Decker in December?
How many days does it snow in December in Decker?
What is the month with the shortest days in Decker?
How many hours of daylight does Decker have in December?
What time are sunrise and sunset in December in Decker?
What is the month with the least sunshine in Decker?
How long on average sun shines in December in Decker?
What is the month with the lowest UV index in Decker?
How high is the UV index in December in Decker?
Average temperature in December
Decker, IN
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Decker, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Decker, IN
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Decker, IN
- Average humidity in December: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Decker, IN
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is April (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Decker, IN
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in December
Decker, IN
- Average snowfall in December: 0.12"
The month with the highest snowfall is March (0.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Decker, IN
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Decker, IN
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in December
Decker, IN
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (16.9 days).
Average UV index in December
Decker, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Decker, IN
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Decker, 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).
Decker, Indiana, USA
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