December weather forecastWinthrop, IN
December
Weather in December
The first month of the winter, December, is also an icy month in Winthrop, Indiana, with an average temperature fluctuating between 27.3°F (-2.6°C) and 37.6°F (3.1°C).Temperature
As November transitions to December, the average high-temperature falls from a frosty 48.7°F (9.3°C) to an icy 37.6°F (3.1°C). Winthrop throughout December, experiences an average nighttime temperature of 27.3°F (-2.6°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Winthrop, during December, the rain falls for 10 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 161.5 rainfall days, and 27.91" (709mm) of precipitation is accumulated.Snowfall
Months with snowfall in Winthrop are January through April, November and December. In Winthrop, in December, snow falls for 8.5 days, with typically accumulated 2.24" (57mm) of snow. In Winthrop, during the entire year, snow falls for 37.6 days and aggregates up to 10.59" (269mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:53 am and sunset at 5:23 pm. On the last day of December, sunrise is at 8:11 am and sunset at 5:32 pm EST.
Sunshine
In Winthrop, the average sunshine in December is 4.4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Caution! The reflection of snow 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
Winthrop, IN
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Winthrop, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Winthrop, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Winthrop, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Winthrop, IN
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Winthrop, IN
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Winthrop, IN
- Average snowfall in December: 2.24"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Winthrop, IN
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (11 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
Winthrop, IN
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Winthrop, IN
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (9 days).
Average UV index in December
Winthrop, 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
Winthrop, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in December
Winthrop, 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).
