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
With the beginning of December, the average high-temperature shows a decrease, transitioning from a frosty 48.6°F (9.2°C) in November to an icy 37.9°F (3.3°C). In December, the nighttime temperature in Riverwood, Indiana, lowers to an average of 27.5°F (-2.5°C).Humidity
The months with the highest humidity in Riverwood are January and December, with an average relative humidity of 83%.Rainfall
In Riverwood, in December, it is raining for 7.6 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 136 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Riverwood. In Riverwood, Indiana, in December, during 6.4 snowfall days, 1.73" (44mm) of snow is typically accumulated. In Riverwood, during the entire year, snow falls for 30.8 days and aggregates up to 7.48" (190mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Riverwood, sunrise is at 7:47 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:28 pm EST.
Sunshine
In December, the average sunshine is 4.2h.UV index
December is the month with the lowest UV index in Riverwood, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Riverwood in December?
What is the most humid month in Riverwood?
What is the average humidity in December in Riverwood?
How much does it rain in Riverwood in December?
How much does it snow in Riverwood in December?
What is the month with the shortest days in Riverwood?
What is the average length of the day in December in Riverwood?
When is the sunrise / sunset in December in Riverwood?
How long on average sun shines in December in Riverwood?
What is the month with the lowest UV index in Riverwood?
What is the UV index intensity in December in Riverwood?
Average temperature in December
Riverwood, IN
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Riverwood, 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
Riverwood, IN
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Riverwood, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Riverwood, IN
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (2.52").
The driest months (with the least rainfall) are February and November (1.02").
Average rainfall days in December
Riverwood, IN
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Riverwood, IN
- Average snowfall in December: 1.73"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Riverwood, IN
- Average snowfall days in December: 6.4 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
Riverwood, 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 24min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Riverwood, IN
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Riverwood, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Riverwood, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Riverwood, 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).
Riverwood, Indiana, USA
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