December weather forecastMackey, IN
December
Weather in December
December, the first month of the winter in Mackey, is also a frosty month, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 32°F (0°C).Temperature
December suggests a modest reduction in the average high-temperature, shifting from a cool 53.1°F (11.7°C) in November to a chilly 43.3°F (6.3°C). In the month of December, Mackey records a consistent average low-temperature of 32°F (0°C).Humidity
In Mackey, the average relative humidity in December is 79%.Rainfall
In Mackey, in December, during 9.8 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 148.6 rainfall days, and 23.27" (591mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Mackey, Indiana. In Mackey, in December, snow falls for 5.5 days, with typically accumulated 0.59" (15mm) of snow. In Mackey, Indiana, during the entire year, snow falls for 22.4 days and aggregates up to 4.21" (107mm) of snow.Daylight
December has the shortest days of the year in Mackey, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:48 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mackey, IN
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Mackey, IN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Mackey, IN
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in December
Mackey, IN
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Mackey, IN
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in December
Mackey, IN
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Mackey, IN
- Average snowfall in December: 0.59"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Mackey, IN
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (6.5 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
Mackey, IN
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 30min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Mackey, IN
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Mackey, 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, November and December (UV index 2).
Average cloud cover in December
Mackey, IN
- Average cloud cover in December: 52
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Mackey, 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).
