December weather forecastYorktown, IN
December
Weather in December
The first month of the winter, December, is also a wintry month in Yorktown, Indiana, with an average temperature varying between 37.9°F (3.3°C) and 27.7°F (-2.4°C).Temperature
December's onset brings a reduction in the average high-temperature, from a frosty 48.4°F (9.1°C) in November to a wintry 37.9°F (3.3°C). The average temperature during December nights is registered at a subzero cold 27.7°F (-2.4°C).Humidity
The average relative humidity in December is 82%.Rainfall
In December, in Yorktown, the rain falls for 10.6 days. Throughout December, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Yorktown, there are 162 rainfall days, and 28.11" (714mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Yorktown, during December, snow falls for 9.2 days and regularly aggregates up to 2.76" (70mm) of snow. In Yorktown, during the entire year, snow falls for 42.8 days and aggregates up to 12.64" (321mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:45 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:26 pm EST.
Sunshine
The average sunshine in December is 4h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Boost your sun resistance with garments that are densely woven yet spacious. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yorktown, IN
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Yorktown, 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
Yorktown, IN
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Yorktown, IN
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Yorktown, IN
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days in December
Yorktown, IN
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Yorktown, IN
- Average snowfall in December: 2.76"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Yorktown, IN
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Yorktown, IN
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 4h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Yorktown, IN
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (9 days).
Average UV index in December
Yorktown, 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, March, October, November and December (UV index 2).
Average cloud cover in December
Yorktown, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are June, July and August (Cloud cover 33).
Average visibility in December
Yorktown, IN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
