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
Arrival of December comes with a reduction in the average high-temperature, falling from a cool 51.1°F (10.6°C) in November to a cold 40.6°F (4.8°C). Saint Louis Crossing encounters a steady low-temperature average of 29.7°F (-1.3°C) throughout the month of December.Humidity
January, February, July and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 163.5 rainfall days, and 29.29" (744mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Saint Louis Crossing. In Saint Louis Crossing, during December, snow falls for 8.2 days and regularly aggregates up to 1.89" (48mm) of snow. In Saint Louis Crossing, Indiana, during the entire year, snow falls for 34.1 days and aggregates up to 8.54" (217mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:44 am and sunset at 5:20 pm. On the last day of December, sunrise is at 8:03 am and sunset at 5:30 pm EST.
Sunshine
In Saint Louis Crossing, the average sunshine in December is 4.3h.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 low threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Saint Louis Crossing?
What is the most humid month in Saint Louis Crossing?
What is the average humidity in December in Saint Louis Crossing?
How many days does it rain in December in Saint Louis Crossing?
How much does it snow in Saint Louis Crossing in December?
What is the month with the shortest days in Saint Louis Crossing?
What is the average length of the day in December in Saint Louis Crossing?
When are sunrise and sunset in December in Saint Louis Crossing?
How many hours of sunshine does Saint Louis Crossing have in December?
What are the months with the lowest UV index in Saint Louis Crossing?
What is the UV index reading in December in Saint Louis Crossing?
Average temperature in December
Saint Louis Crossing, IN
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 29.7°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 (22.5°F).
Average pressure in December
Saint Louis Crossing, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Saint Louis Crossing, IN
- Average wind speed in December: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Saint Louis Crossing, IN
- Average humidity in December: 81%
The months with the highest relative humidity are January, February, July and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Saint Louis Crossing, IN
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in December
Saint Louis Crossing, IN
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (9.4 days).
Average snowfall in December
Saint Louis Crossing, IN
- Average snowfall in December: 1.89"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Saint Louis Crossing, IN
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (9.6 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 Louis Crossing, IN
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Saint Louis Crossing, IN
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in December
Saint Louis Crossing, IN
- Average UV index in December: 2
The months with the highest UV index are 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 Louis Crossing, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Saint Louis Crossing, IN
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are July and December (5mi).
Saint Louis Crossing, Indiana, USA
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