December weather forecast
Willis, KS

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Weather in December

December, the first month of the winter in Willis, is also an icy month, with temperature in the range of an average low of 25.5°F (-3.6°C) and an average high of 38.5°F (3.6°C).

Temperature

As December arrives, Willis's weather displays a decrease in high-temperatures, transitioning from November's fresh 51.4°F (10.8°C) to a wintry 38.5°F (3.6°C). In Willis, December is marked by an average low-temperature of 25.5°F (-3.6°C).

Humidity

In Willis, the average relative humidity in December is 74%.

Rainfall

In Willis, during December, the rain falls for 5.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Willis, there are 123.6 rainfall days, and 25.47" (647mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Willis, it is snowing for 4 days. Throughout December, 1.3" (33mm) of snow is accumulated. Throughout the year, there are 22.1 snowfall days, and 8.62" (219mm) of snow is accumulated.

Daylight

The month with the shortest days in Willis is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:07 pm CST.

Sunshine

In December, the average sunshine in Willis 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 vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December translates into the following guidance:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

How cold is it in Willis in December?

The average high-temperature and low-temperature in Willis during December are 38.5°F (3.6°C) and 25.5°F (-3.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is appraised at 93.2°F (34°C).

What is the average humidity in December in Willis?

In December, the average relative humidity in Willis is 74%.

How much does it rain in Willis in December?

In Willis, in December, it is raining for 5.1 days, with typically 1.06" (27mm) of accumulated precipitation.

How many days does it snow in December in Willis?

In Willis, Kansas, in December, snow falls for 4 days, with typically accumulated 1.3" (33mm) of snow.

What is the month with the shortest days in Willis?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Willis?

In Willis, the average day length in December is 9h and 25min.

When is the sunrise / sunset in December in Willis?

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.

How long on average sun shines in December in Willis?

In Willis, Kansas, the average sunshine duration in December is 5.5h.

What are the months with the lowest UV index in Willis?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Willis?

In Willis, Kansas, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Willis, KS

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).

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Average pressure in December
Willis, KS

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).

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Average wind speed in December
Willis, KS

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).

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Average humidity in December
Willis, KS

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%).

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Average rainfall in December
Willis, KS

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").

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Average rainfall days in December
Willis, KS

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).

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Average snowfall in December
Willis, KS

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").

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Average snowfall days in December
Willis, KS

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).

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Average daylight in December /
Average sunshine in December
Willis, KS

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).

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Average sunshine days in December
Willis, KS

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).

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Average UV index in December
Willis, KS

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).

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Average cloud cover in December
Willis, KS

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).

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Average visibility in December
Willis, KS

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).

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Willis, Kansas, USA

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