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
The shift to December brings a decrease in the average high-temperature, falling from a frosty 47.5°F (8.6°C) in November to an icy 36.5°F (2.5°C). The month of December records an average low-temperature of 27°F (-2.8°C).Humidity
January, February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Uniondale, in December, during 9.6 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Uniondale, there are 161.7 rainfall days, and 28.39" (721mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Uniondale, during December, snow falls for 10.4 days and regularly aggregates up to 2.64" (67mm) of snow. In Uniondale, during the entire year, snow falls for 51.1 days and aggregates up to 14.72" (374mm) of snow.Daylight
December has the shortest days of the year in Uniondale, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 5:13 pm. On the last day of December, in Uniondale, sunrise is at 8:05 am and sunset at 5:23 pm EST.
Sunshine
The average sunshine in December in Uniondale is 3.9h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Uniondale in December?
What is the most humid month in Uniondale?
What is the average humidity in December in Uniondale?
How much does it rain in Uniondale in December?
How much does it snow in Uniondale in December?
What is the month with the shortest days in Uniondale?
How many hours of daylight does Uniondale have in December?
When is the sunrise / sunset in December in Uniondale?
How many hours of sunshine does Uniondale have in December?
What is the month with the lowest UV index in Uniondale?
How high is the UV index in December in Uniondale?
Average temperature in December
Uniondale, IN
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Uniondale, 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
Uniondale, IN
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Uniondale, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Uniondale, IN
- Average rainfall in December: 1.89"
The wettest months (with the highest rainfall) are April and May (3.35").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Uniondale, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Uniondale, IN
- Average snowfall in December: 2.64"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Uniondale, IN
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Uniondale, IN
- Average daylight in December: 9h and 2min
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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Uniondale, IN
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Uniondale, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Uniondale, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Uniondale, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January, February and August (5mi).
Uniondale, Indiana, USA
Weather forecast for your location
2. Allow the app to use your location