December weather forecastSaint Mary-of-the-Woods, IN
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 24min
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 18min
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: 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: 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: 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: 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).
