Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December implies a gentle temperature shift, with average high-temperatures reducing from November's fresh 51.3°F (10.7°C) to a wintry 41.7°F (5.4°C). An average low-temperature of 30.2°F (-1°C) is recorded during the nights in December.Humidity
February, May and December, with an average relative humidity of 81%, are the most humid months in Williams.Rainfall
In December, the rain falls for 9.2 days. Throughout December, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 135.6 rainfall days, and 17.64" (448mm) of precipitation is accumulated.Snowfall
Months with snowfall in Williams, Indiana, are January through April, November and December. In Williams, in December, during 5.1 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 24.4 snowfall days, and 4.41" (112mm) of snow is accumulated.Daylight
December has the shortest days of the year in Williams, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:46 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:35 pm EST.
Sunshine
The month with the least sunshine in Williams is December, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during December translates into the following guidance:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
How cold does it get in Williams in December?
What are the most humid months in Williams?
What is the average humidity in December in Williams?
How much does it rain in Williams in December?
How much does it snow in Williams in December?
What is the month with the shortest days in Williams?
What is the average length of the day in December in Williams?
When is the sunrise / sunset in December in Williams?
What is the month with the least sunshine in Williams?
How many hours of sunshine does Williams have in December?
What is the month with the lowest UV index in Williams?
What is the UV index intensity in December in Williams?
Average temperature in December
Williams, IN
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Williams, 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
Williams, IN
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January, February and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in December
Williams, IN
- Average humidity in December: 81%
The months with the highest relative humidity are February, May and December (81%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Williams, IN
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Williams, IN
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Williams, IN
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Williams, IN
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (6.6 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
Williams, IN
- Average daylight in December: 9h and 3min
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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Williams, IN
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Williams, 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
Williams, IN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Williams, IN
- Average visibility in December: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).
Williams, Indiana, USA
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