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 onset of December is marked by a decrease in temperature, transitioning from a cool 53.1°F (11.7°C) in November to a chilly 43.5°F (6.4°C). The month of December records an average low-temperature of 31.8°F (-0.1°C).Humidity
In Saint Croix, the average relative humidity in December is 79%.Rainfall
In Saint Croix, Indiana, in December, it is raining for 8.4 days, with typically 1.38" (35mm) of accumulated precipitation. In Saint Croix, during the entire year, the rain falls for 131.3 days and collects up to 18.94" (481mm) of precipitation.Snowfall
Months with snowfall in Saint Croix, Indiana, are January through April, November and December. In Saint Croix, in December, snow falls for 3.9 days, with typically accumulated 0.39" (10mm) of snow. In Saint Croix, Indiana, during the entire year, snow falls for 20 days and aggregates up to 3.27" (83mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:44 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:36 pm CST.
Sunshine
With an average of 4.4h of sunshine, December has the least sunshine of the year.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Saint Croix, IN
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (38.7°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 (25.3°F).
Average pressure in December
Saint Croix, 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
Saint Croix, IN
- Average wind speed in December: 7.9mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Saint Croix, 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 (73%).
Average rainfall in December
Saint Croix, IN
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is April (2.32").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in December
Saint Croix, IN
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Saint Croix, IN
- Average snowfall in December: 0.39"
The month with the highest snowfall is January (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Saint Croix, IN
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (6 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
Saint Croix, IN
- Average daylight in December: 9h and 4min
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 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in December
Saint Croix, IN
- Average sunshine days in December: 18 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Saint Croix, 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
Saint Croix, IN
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Saint Croix, 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).
Saint Croix, Indiana, USA
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