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
In the transition to December, Arlington observes a drop in the average high-temperature, moving from a frosty 49.5°F (9.7°C) in November to a wintry 39°F (3.9°C). December nights cool down to an average low-temperature of 28.6°F (-1.9°C).Humidity
January, July and December, with an average relative humidity of 82%, are the most humid months in Arlington.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 172.9 rainfall days, and 34.88" (886mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Arlington, in December, snow falls for 10.5 days, with typically accumulated 3.31" (84mm) of snow. Throughout the year, there are 42.9 snowfall days, and 14.61" (371mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:44 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:28 pm EST.
Sunshine
In December, the average sunshine is 3.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What are the most humid months?
What is the average humidity in December in Arlington?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December in Arlington?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Arlington, IN
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Arlington, 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
Arlington, IN
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Arlington, IN
- Average humidity in December: 82%
The months with the highest relative humidity are January, July and December (82%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Arlington, IN
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Arlington, IN
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in December
Arlington, IN
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Arlington, IN
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arlington, 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: 3h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Arlington, IN
- Average sunshine days in December: 12 days
The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in December
Arlington, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Arlington, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Arlington, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Arlington, Indiana, USA
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