December weather forecastTrevlac, IN
December
Weather in December
December, the first month of the winter in Trevlac, is still a cold month, with an average temperature ranging between min 29.5°F (-1.4°C) and max 40.8°F (4.9°C).Temperature
During the transition into December, Trevlac observes a decrease in the average high-temperature, falling from a cool 51.3°F (10.7°C) in November to an icy 40.8°F (4.9°C). An average nighttime temperature of 29.5°F (-1.4°C) is noted during the month of December.Humidity
December is the most humid month in Trevlac, Indiana, with an average relative humidity of 82%.Rainfall
In Trevlac, in December, during 9.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Trevlac, Indiana, during the entire year, the rain falls for 151.7 days and collects up to 27.91" (709mm) of precipitation.Snowfall
Months with snowfall in Trevlac are January through April, October through December. In Trevlac, during December, snow falls for 5.6 days and regularly aggregates up to 1.73" (44mm) of snow. Throughout the year, there are 25.4 snowfall days, and 8.78" (223mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 5:22 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:32 pm EST.
Sunshine
The average sunshine in December is 4.3h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Trevlac. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trevlac, IN
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Trevlac, IN
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Trevlac, IN
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Trevlac, IN
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Trevlac, IN
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in December
Trevlac, IN
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (19.6 days).
The months with the least rainy days are January and February (8 days).
Average snowfall in December
Trevlac, IN
- Average snowfall in December: 1.73"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Trevlac, IN
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (6.8 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
Trevlac, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Trevlac, IN
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (8.6 days).
Average UV index in December
Trevlac, 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, November and December (UV index 2).
Average cloud cover in December
Trevlac, 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
Trevlac, 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).
