December weather forecastUnderwood, IN
December
Weather in December
The first month of the winter, December, is still a cold month in Underwood, Indiana, with an average temperature ranging between max 42.6°F (5.9°C) and min 30.9°F (-0.6°C).Temperature
With December's arrival, Underwood's weather changes as the average high-temperature falls from a fresh 52.2°F (11.2°C) in November to an icy 42.6°F (5.9°C). The average low-temperature, in December, is a freezing cold 30.9°F (-0.6°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Underwood, Indiana, in December, it is raining for 11.9 days, with typically 2.4" (61mm) of accumulated precipitation. In Underwood, during the entire year, the rain falls for 163.7 days and collects up to 31.77" (807mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Underwood, during December, snow falls for 7 days and regularly aggregates up to 1.57" (40mm) of snow. In Underwood, Indiana, during the entire year, snow falls for 33 days and aggregates up to 8.78" (223mm) of snow.Daylight
December has the shortest days of the year in Underwood, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:32 pm EST.
Sunshine
January and December, with an average of 4.3h of sunshine, are months with the least sunshine in Underwood.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Experience reduced UV exposure by about half when donning a wide-brim hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Underwood, IN
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Underwood, 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
Underwood, IN
- Average wind speed in December: 7.4mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Underwood, IN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Underwood, IN
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Underwood, IN
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Underwood, IN
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Underwood, IN
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is January (9.4 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
Underwood, IN
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
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 months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in December
Underwood, IN
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10 days).
Average UV index in December
Underwood, 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, November and December (UV index 2).
Average cloud cover in December
Underwood, 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 29).
Average visibility in December
Underwood, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
