December weather forecastPlainfield, IN
December
Weather in December
December marks the advent of winter in Plainfield, introducing more frigid weather conditions than November. With the return of significant snowfall, amounting to 3.82" (97mm), the city dons its winter attire. December thus becomes the month of snowflakes and ice, creating a picturesque white landscape. Temperatures drop further, encouraging residents to fully immerse in the winter spirit with warm indoor activities and holiday celebrations. Despite the cold, December boasts a unique charm and cheer, leaving its inhabitants with fond memories as they bid farewell to the year.Temperature
The onset of December introduces a moderate change in Plainfield's weather, with average high-temperatures falling from November's frosty 49.5°F (9.7°C) to a cold 38.5°F (3.6°C). Throughout December nights, Plainfield experiences a consistent temperature average of 28°F (-2.2°C).Humidity
The months with the highest humidity are July and December, with an average relative humidity of 82%.Rainfall
In Plainfield, Indiana, in December, during 10.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Plainfield, during the entire year, the rain falls for 179.9 days and collects up to 37.17" (944mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Plainfield, in December, snow falls for 9 days, with typically accumulated 3.82" (97mm) of snow. Throughout the year, there are 40.4 snowfall days, and 15.04" (382mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:48 am and sunset at 5:21 pm. On the last day of December, sunrise is at 8:06 am and sunset at 5:31 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.1h of sunshine.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. On your guard! Snow's reflection can almost 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
Plainfield, IN
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Plainfield, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Plainfield, IN
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Plainfield, IN
- Average humidity in December: 82%
The months with the highest relative humidity are July and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Plainfield, IN
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is May (4.53").
The driest months (with the least rainfall) are February and September (2.32").
Average rainfall days in December
Plainfield, IN
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (21.6 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Plainfield, IN
- Average snowfall in December: 3.82"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Plainfield, IN
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plainfield, IN
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in December
Plainfield, IN
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is November (15.6 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in December
Plainfield, 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, October, November and December (UV index 2).
Average cloud cover in December
Plainfield, 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 30).
Average visibility in December
Plainfield, IN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, July and December (5mi).
