December weather forecastSunman, IN
December
Weather in December
December, the first month of the winter in Sunman, is also a wintry month, with temperature in the range of an average low of 29.8°F (-1.2°C) and an average high of 40.6°F (4.8°C).Temperature
Sunman's December weather comes with a decrease in average high-temperatures, moving from a fresh 51.1°F (10.6°C) in November to an icy 40.6°F (4.8°C). Sunman experiences a consistent average temperature of 29.8°F (-1.2°C) throughout the nights in December.Humidity
The most humid month is December, with an average relative humidity of 82%.Rainfall
In Sunman, in December, it is raining for 6.1 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, there are 89.7 rainfall days, and 7.44" (189mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Sunman, Indiana, during December, snow falls for 3.7 days and regularly aggregates up to 0.24" (6mm) of snow. In Sunman, during the entire year, snow falls for 17.2 days and aggregates up to 1.61" (41mm) 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 7:41 am and sunset at 5:17 pm. On the last day of December, in Sunman, sunrise is at 7:59 am and sunset at 5:27 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 1 transforms into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sunman, 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 (35.4°F).
- Average low temperature in December: 29.8°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 (23°F).
Average pressure in December
Sunman, 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 (29.94"Hg).
Average wind speed in December
Sunman, IN
- Average wind speed in December: 8.3mph
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 (5.2mph).
Average humidity in December
Sunman, 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
Sunman, IN
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (0.79").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
Sunman, IN
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (10.1 days).
The months with the least rainy days are February and November (5.5 days).
Average snowfall in December
Sunman, IN
- Average snowfall in December: 0.24"
The month with the highest snowfall is March (0.43").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sunman, IN
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (4.5 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
Sunman, 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 July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Sunman, IN
- Average sunshine days in December: 22.1 days
The month with the most sunshine days is October (22.8 days).
The month with the least sunshine days is July (16.2 days).
Average UV index in December
Sunman, IN
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Sunman, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sunman, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
