December weather forecastNew Unionville, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in New Unionville, Indiana, with an average temperature varying between 40.3°F (4.6°C) and 28.9°F (-1.7°C).Temperature
Stepping into December, New Unionville observes a temperature decline, with the average high falling from November's fresh 50.9°F (10.5°C) to an icy 40.3°F (4.6°C). An average low-temperature of 28.9°F (-1.7°C) is recorded in the month of December.Humidity
The months with the highest humidity are May, July and December, with an average relative humidity of 82%.Rainfall
In New Unionville, in December, it is raining for 9.1 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 143.5 rainfall days, and 21.85" (555mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 5.9 days. Throughout December, 1.22" (31mm) of snow is accumulated. In New Unionville, during the entire year, snow falls for 26.8 days and aggregates up to 6.69" (170mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:46 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:33 pm EST.
Sunshine
January and December, with an average of 4.3h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, October and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
New Unionville, IN
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
New Unionville, IN
- Average pressure in December: 30.13"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
New Unionville, IN
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
New Unionville, IN
- Average humidity in December: 82%
The months with the highest relative humidity are May, July and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
New Unionville, IN
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in December
New Unionville, IN
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
New Unionville, IN
- Average snowfall in December: 1.22"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
New Unionville, IN
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is January (7.3 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
New Unionville, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in December
New Unionville, IN
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
New Unionville, IN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October and December (UV index 2).
Average cloud cover in December
New Unionville, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
New Unionville, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
