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
Onset of December comes with a temperature decline, the average high falling from a cool 51.4°F (10.8°C) in November to a wintry 38.5°F (3.6°C). December brings an average low-temperature of 25.5°F (-3.6°C) to Willis.Humidity
In Willis, the average relative humidity in December is 74%.Rainfall
In December, in Willis, the rain falls for 5.1 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. In Willis, during the entire year, the rain falls for 123.6 days and collects up to 25.47" (647mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Willis, during December, snow falls for 4 days and regularly aggregates up to 1.3" (33mm) of snow. In Willis, during the entire year, snow falls for 22.1 days and aggregates up to 8.62" (219mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:07 pm CST.
Sunshine
In Willis, the average sunshine in December is 5.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Willis. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Willis?
When is the sunrise / sunset in December?
How many hours of sunshine does Willis have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Willis, KS
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Willis, KS
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Willis, KS
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in December
Willis, KS
- Average humidity in December: 74%
The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Willis, KS
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in December
Willis, KS
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in December
Willis, KS
- Average snowfall in December: 1.3"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Willis, KS
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Willis, KS
- Average daylight in December: 9h and 2min
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: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Willis, KS
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Willis, KS
- Average UV index in December: 2
The months with the highest UV index are May, 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
Willis, KS
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Willis, KS
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Willis, Kansas, USA
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