December weather forecastRoselawn, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in Roselawn, Indiana, with an average temperature ranging between max 36.3°F (2.4°C) and min 26.4°F (-3.1°C).Temperature
Transition into December marks a drop in the average high-temperature, moving from a chilly 47.3°F (8.5°C) in November to a wintry 36.3°F (2.4°C). Roselawn, in the month of December, anticipates a consistent average low-temperature of 26.4°F (-3.1°C).Humidity
The average relative humidity in December in Roselawn is 81%.Rainfall
In Roselawn, during December, the rain falls for 9.1 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 153.9 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Roselawn, in December, during 9.3 snowfall days, 2.13" (54mm) of snow is typically accumulated. In Roselawn, during the entire year, snow falls for 44.8 days and aggregates up to 12.4" (315mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Roselawn, sunrise is at 6:55 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:30 pm CST.
Sunshine
In Roselawn, the average sunshine in December is 4.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Roselawn, Indiana. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roselawn, IN
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Roselawn, IN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Roselawn, 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 (6.2mph).
Average humidity in December
Roselawn, 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
Roselawn, IN
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Roselawn, IN
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Roselawn, IN
- Average snowfall in December: 2.13"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Roselawn, IN
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roselawn, IN
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Roselawn, IN
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is November (17.5 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in December
Roselawn, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Roselawn, 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 33).
Average visibility in December
Roselawn, 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).
