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 shows a mild decline in the average high-temperature, falling from November's frosty 48.2°F (9°C) to an icy 37.6°F (3.1°C). Octagon, during the month of December, experiences an average low-temperature of 27.1°F (-2.7°C).Humidity
In Octagon, Indiana, the average relative humidity in December is 81%.Rainfall
In Octagon, in December, during 7.4 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 130.9 rainfall days, and 18.23" (463mm) of precipitation is accumulated.Snowfall
Months with snowfall in Octagon are January through April, October through December. In December, it is snowing for 4.7 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, there are 28.3 snowfall days, and 7.36" (187mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:52 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:31 pm EST.
Sunshine
The average sunshine in December is 4.3h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 1 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Octagon have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Octagon have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Octagon, IN
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Octagon, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Octagon, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Octagon, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Octagon, IN
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are February and November (0.94").
Average rainfall days in December
Octagon, IN
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in December
Octagon, IN
- Average snowfall in December: 1.18"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Octagon, IN
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (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
Octagon, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Octagon, IN
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in December
Octagon, 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
Octagon, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June, August and September (Cloud cover 34).
Average visibility in December
Octagon, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Octagon, Indiana, USA
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