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 Princeton, the average high-temperature in December drops from a cool 52.9°F (11.6°C) in November to a frosty 43°F (6.1°C). During December, the nighttime temperature in Princeton averages of 31.8°F (-0.1°C).Humidity
In December, the average relative humidity in Princeton is 78%.Rainfall
In Princeton, during December, the rain falls for 10.1 days and regularly aggregates up to 2.05" (52mm) of precipitation. Throughout the year, there are 149.2 rainfall days, and 26.3" (668mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Princeton, in December, during 4.7 snowfall days, 0.75" (19mm) of snow is typically accumulated. Throughout the year, there are 21.4 snowfall days, and 4.72" (120mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:49 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:40 pm CST.
Sunshine
In Princeton, the average sunshine in December is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Princeton, Indiana. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Princeton in December?
What is the average humidity in December in Princeton?
How much does it rain in Princeton in December?
How much does it snow in Princeton in December?
What is the month with the shortest days in Princeton?
What is the average length of the day in December in Princeton?
What time are sunrise and sunset in December in Princeton?
How many hours of sunshine does Princeton have in December?
When is the lowest UV index in Princeton?
How high is the UV index in December in Princeton?
Average temperature in December
Princeton, IN
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 31.8°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
Princeton, 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
Princeton, IN
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Princeton, IN
- Average humidity in December: 78%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Princeton, IN
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in December
Princeton, IN
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Princeton, IN
- Average snowfall in December: 0.75"
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
Princeton, IN
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.7 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
Princeton, IN
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Princeton, IN
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (19.7 days).
The months with the least sunshine days are May and July (10.3 days).
Average UV index in December
Princeton, 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
Princeton, IN
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Princeton, 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).
Princeton, Indiana, USA
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