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 commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 48.7°F (9.3°C) in November to a cold 37.8°F (3.2°C). Zionsville reports an average low-temperature of 27.3°F (-2.6°C) during the nights of December.Humidity
The most humid month is December, with an average relative humidity of 83%.Rainfall
In December, in Zionsville, the rain falls for 6.5 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Zionsville, Indiana, there are 121.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, in Zionsville, Indiana, it is snowing for 5.7 days. Throughout December, 1.02" (26mm) of snow is accumulated. Throughout the year, there are 25.8 snowfall days, and 3.74" (95mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:48 am and sunset at 5:20 pm. On the last day of December, in Zionsville, Indiana, sunrise is at 8:06 am and sunset at 5:30 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold does it get in Zionsville in December?
What is the most humid month in Zionsville?
What is the average humidity in December in Zionsville?
How much does it rain in Zionsville in December?
How much does it snow in Zionsville in December?
What is the month with the shortest days in Zionsville?
How many hours of daylight does Zionsville have in December?
When are sunrise and sunset in December in Zionsville?
How many hours of sunshine does Zionsville have in December?
When is the lowest UV index in Zionsville?
What is the UV index intensity in December in Zionsville?
Average temperature in December
Zionsville, IN
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.3°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 (20.3°F).
Average pressure in December
Zionsville, IN
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Zionsville, IN
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Zionsville, IN
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Zionsville, IN
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Zionsville, IN
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Zionsville, IN
- Average snowfall in December: 1.02"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Zionsville, IN
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Zionsville, 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 24min).
- 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 54min).
Average sunshine days in December
Zionsville, IN
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in December
Zionsville, IN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Zionsville, 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 31).
Average visibility in December
Zionsville, 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).
Zionsville, Indiana, USA
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