December weather forecastRocky Ripple, IN
December
Weather in December
The first month of the winter, December, is still a cold month in Rocky Ripple, Indiana, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 38.3°F (3.5°C).Temperature
With December's onset, the average high-temperature recedes from November's frosty 49.1°F (9.5°C) to an icy 38.3°F (3.5°C). In Rocky Ripple, the December nights cool down to an average low of 27.7°F (-2.4°C).Humidity
December is the most humid month, with an average relative humidity of 83%.Rainfall
In December, in Rocky Ripple, the rain falls for 9.7 days. Throughout December, 1.97" (50mm) of precipitation is accumulated. In Rocky Ripple, during the entire year, the rain falls for 158.4 days and collects up to 28.23" (717mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Rocky Ripple. In Rocky Ripple, during December, snow falls for 8.4 days and regularly aggregates up to 2.6" (66mm) of snow. Throughout the year, there are 36.1 snowfall days, and 10.98" (279mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Rocky Ripple.On the first day of the month, sunrise is at 7:47 am and sunset at 5:20 pm. On the last day of December, sunrise is at 8:05 am and sunset at 5:30 pm EST.
Sunshine
In Rocky Ripple, the average sunshine in December is 4.1h.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 hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rocky Ripple, IN
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in December
Rocky Ripple, 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
Rocky Ripple, IN
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Rocky Ripple, IN
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Rocky Ripple, IN
- Average rainfall in December: 1.97"
The wettest months (with the highest rainfall) are April and May (3.43").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in December
Rocky Ripple, IN
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Rocky Ripple, IN
- Average snowfall in December: 2.6"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rocky Ripple, IN
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rocky Ripple, IN
- Average daylight in December: 9h and 24min
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 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Rocky Ripple, IN
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Rocky Ripple, 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
Rocky Ripple, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Rocky Ripple, 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).
