December weather forecast
Saint Mary-of-the-Woods, IN

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Weather in December

The first month of the winter, December, is still a cold month in Saint Mary-of-the-Woods, Indiana, with an average temperature fluctuating between 28.4°F (-2°C) and 39.6°F (4.2°C).

Temperature

The arrival of December corresponds with a shift in temperature, down from a cool 50.4°F (10.2°C) in November to a wintry 39.6°F (4.2°C). Saint Mary-of-the-Woods, during the month of December, experiences an average low-temperature of 28.4°F (-2°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

In Saint Mary-of-the-Woods, during December, the rain falls for 9.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Saint Mary-of-the-Woods, during the entire year, the rain falls for 159.3 days and collects up to 34.41" (874mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Saint Mary-of-the-Woods, in December, snow falls for 5.5 days, with typically accumulated 1.69" (43mm) of snow. In Saint Mary-of-the-Woods, during the entire year, snow falls for 24.7 days and aggregates up to 8.66" (220mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:51 am and sunset at 5:26 pm. On the last day of December, in Saint Mary-of-the-Woods, Indiana, sunrise is at 8:10 am and sunset at 5:36 pm EST.

Sunshine

January and December, with an average of 4.3h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In Saint Mary-of-the-Woods, 39.6°F (4.2°C) is the average high-temperature and 28.4°F (-2°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in December in Saint Mary-of-the-Woods?

In Saint Mary-of-the-Woods, the average relative humidity in December is 81%.

How many days does it rain in December in Saint Mary-of-the-Woods?

In Saint Mary-of-the-Woods, in December, during 9.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 5.5 days. Throughout December, 1.69" (43mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Saint Mary-of-the-Woods have in December?

In Saint Mary-of-the-Woods, the average day length in December is 9h and 26min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:51 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:36 pm EST.

What is the month with the least sunshine?

The months with the least sunshine are January and December, with an average of 4.3h of sunshine.

How many hours of sunshine does Saint Mary-of-the-Woods have in December?

The average sunshine duration in December is 4.3h.

When is the lowest UV index in Saint Mary-of-the-Woods?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Saint Mary-of-the-Woods, IN

Average temperature in December - Saint Mary-of-the-Woods, IN
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in December
Saint Mary-of-the-Woods, IN

Average pressure in December - Saint Mary-of-the-Woods, IN
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Saint Mary-of-the-Woods, IN

Average wind speed in December - Saint Mary-of-the-Woods, IN
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Saint Mary-of-the-Woods, IN

Average humidity in December - Saint Mary-of-the-Woods, IN
  • Average humidity in December: 81%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Saint Mary-of-the-Woods, IN

Average rainfall in December - Saint Mary-of-the-Woods, IN
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is April (4.96").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in December
Saint Mary-of-the-Woods, IN

Average rainfall days in December - Saint Mary-of-the-Woods, IN
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in December
Saint Mary-of-the-Woods, IN

Average snowfall in December - Saint Mary-of-the-Woods, IN
  • Average snowfall in December: 1.69"

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Saint Mary-of-the-Woods, IN

Average snowfall days in December - Saint Mary-of-the-Woods, IN
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Saint Mary-of-the-Woods, IN

Average daylight in December / Average sunshine in December - Saint Mary-of-the-Woods, IN
  • Average daylight in December: 9h and 2min

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 24min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).

Average sunshine days in December
Saint Mary-of-the-Woods, IN

Average sunshine days in December - Saint Mary-of-the-Woods, IN
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (7.9 days).

Average UV index in December
Saint Mary-of-the-Woods, IN

Average UV index in December - Saint Mary-of-the-Woods, 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, October, November and December (UV index 2).

Average cloud cover in December
Saint Mary-of-the-Woods, IN

Average cloud cover in December - Saint Mary-of-the-Woods, IN
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in December
Saint Mary-of-the-Woods, IN

Average visibility in December - Saint Mary-of-the-Woods, IN
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Saint Mary-of-the-Woods, Indiana, USA

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