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 decrease in the average high-temperature, falling from a chilly 47.8°F (8.8°C) in November to a wintry 36.7°F (2.6°C). Onward's average low-temperature for the month of December records at a subzero cold 27.3°F (-2.6°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 1.85" (47mm) of precipitation is accumulated. In Onward, Indiana, during the entire year, the rain falls for 164.6 days and collects up to 29.88" (759mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 9.9 days. Throughout December, 2.8" (71mm) of snow is accumulated. Throughout the year, there are 46 snowfall days, and 14.8" (376mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:50 am and sunset at 5:18 pm. On the last day of December, sunrise is at 8:08 am and sunset at 5:27 pm EST.
Sunshine
In Onward, the average sunshine in December is 4.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Onward. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be cautious! The UV radiation from the Sun can be magnified almost twofold 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 in Onward?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Onward have in December?
When are sunrise and sunset in December in Onward?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Onward, IN
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in December
Onward, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Onward, IN
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Onward, IN
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Onward, IN
- Average rainfall in December: 1.85"
The wettest months (with the highest rainfall) are April and May (3.58").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Onward, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Onward, IN
- Average snowfall in December: 2.8"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Onward, IN
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Onward, 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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Onward, IN
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in December
Onward, IN
- Average UV index in December: 1
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Onward, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June and July (Cloud cover 33).
Average visibility in December
Onward, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Onward, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location