December weather forecastSmithville, IN
December
Weather in December
The first month of the winter, December, is also an icy month in Smithville, Indiana, with an average temperature fluctuating between 40.6°F (4.8°C) and 29.3°F (-1.5°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 51.3°F (10.7°C) in November to a cold 40.6°F (4.8°C). In the month of December, the temperature generally rests at an average low of 29.3°F (-1.5°C).Humidity
The months with the highest humidity are May and December, with an average relative humidity of 82%.Rainfall
In Smithville, during December, the rain falls for 9.5 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 150.5 rainfall days, and 27.56" (700mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Smithville, Indiana, during December, snow falls for 5.8 days and regularly aggregates up to 1.85" (47mm) of snow. Throughout the year, in Smithville, there are 26.7 snowfall days, and 9.13" (232mm) of snow is accumulated.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 7:46 am and sunset at 5:23 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:33 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are January, February, October 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 radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Smithville, IN
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 29.3°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 (22.5°F).
Average pressure in December
Smithville, 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 (29.94"Hg).
Average wind speed in December
Smithville, IN
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Smithville, IN
- Average humidity in December: 82%
The months with the highest relative humidity are May and December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Smithville, IN
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is April (3.11").
The driest months (with the least rainfall) are September and October (1.65").
Average rainfall days in December
Smithville, IN
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Smithville, IN
- Average snowfall in December: 1.85"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Smithville, IN
- Average snowfall days in December: 5.8 days
The month with the highest number of snowfall days is January (7.1 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
Smithville, IN
- Average daylight in December: 9h and 30min
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 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Smithville, IN
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in December
Smithville, 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, October and December (UV index 2).
Average cloud cover in December
Smithville, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Smithville, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
