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
In December, the meteorological conditions alter, with the average high-temperature shifting from a fresh 50°F (10°C) in November to a wintry 40.3°F (4.6°C). An average low-temperature of 28.9°F (-1.7°C) marks the nights in Zionsville, Pennsylvania throughout December.Humidity
The average relative humidity in December in Zionsville is 80%.Rainfall
In December, the rain falls for 10.8 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 156.9 rainfall days, and 33.15" (842mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Zionsville, in December, during 5.2 snowfall days, 2.87" (73mm) of snow is typically accumulated. Throughout the year, there are 31.2 snowfall days, and 18.98" (482mm) of snow is accumulated.Daylight
December has the shortest days of the year in Zionsville, Pennsylvania, with an average of 9h and 18min of daylight.On the first day of December in Zionsville, sunrise is at 7:06 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.
Sunshine
In December, the average sunshine is 4.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold does it get in Zionsville in December?
What is the average humidity in December in Zionsville?
How many days does it rain in December in Zionsville?
How many days does it snow in December in Zionsville?
What is the month with the shortest days in Zionsville?
What is the average length of the day in December in Zionsville?
When are sunrise and sunset in December in Zionsville?
How long on average sun shines in December in Zionsville?
When is the lowest UV index in Zionsville?
How high is the UV index in December in Zionsville?
Average temperature in December
Zionsville, PA
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Zionsville, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Zionsville, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Zionsville, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Zionsville, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Zionsville, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Zionsville, PA
- Average snowfall in December: 2.87"
The month with the highest snowfall is March (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Zionsville, PA
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is January (9.3 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, PA
- 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 18min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Zionsville, PA
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Zionsville, PA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Zionsville, PA
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Zionsville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
Zionsville, Pennsylvania, USA
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