December weather forecast
Stillwater, KY

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Weather in December

The first month of the winter, December, is still a chilly month in Stillwater, Kentucky, with an average temperature varying between 33.3°F (0.7°C) and 45°F (7.2°C).

Temperature

December heralds a minor drop in average high-temperature, sliding from November's cool 54°F (12.2°C) to a chilly 45°F (7.2°C). December witnesses an average low-temperature hovering around an icy 33.3°F (0.7°C).

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Stillwater, during December, the rain falls for 13.6 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 178 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Stillwater, during December, snow falls for 8.3 days and regularly aggregates up to 3.35" (85mm) of snow. In Stillwater, during the entire year, snow falls for 39.8 days and aggregates up to 17.32" (440mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:31 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in December is 4.5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard 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:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

In Stillwater, in December, the average high-temperature is 45°F (7.2°C), and the average low-temperature is 33.3°F (0.7°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 96.8°F (36°C).

What is the average humidity in December?

In Stillwater, the average relative humidity in December is 79%.

How much does it rain in December?

In December, the rain falls for 13.6 days. Throughout December, 3.39" (86mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 8.3 days. Throughout December, 3.35" (85mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

How many hours of daylight does Stillwater have in December?

In December, the average day length is 9h and 36min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:31 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:25 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.5h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
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
Stillwater, KY

Average temperature in December - Stillwater, KY
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in December: 33.3°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 (27°F).

Average pressure in December
Stillwater, KY

Average pressure in December - Stillwater, KY
  • Average pressure in December: 30.14"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Stillwater, KY

Average wind speed in December - Stillwater, KY
  • Average wind speed in December: 6.3mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Stillwater, KY

Average humidity in December - Stillwater, KY
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and November (74%).

Average rainfall in December
Stillwater, KY

Average rainfall in December - Stillwater, KY
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is February (3.9").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Stillwater, KY

Average rainfall days in December - Stillwater, KY
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (11.5 days).

Average snowfall in December
Stillwater, KY

Average snowfall in December - Stillwater, KY
  • Average snowfall in December: 3.35"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Stillwater, KY

Average snowfall days in December - Stillwater, KY
  • Average snowfall days in December: 8.3 days

The month with the highest number of snowfall days is January (11.7 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
Stillwater, KY

Average daylight in December / Average sunshine in December - Stillwater, KY
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 3min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in December
Stillwater, KY

Average sunshine days in December - Stillwater, KY
  • Average sunshine days in December: 12.1 days

The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is February (9 days).

Average UV index in December
Stillwater, KY

Average UV index in December - Stillwater, KY
  • 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 and December (UV index 2).

Average cloud cover in December
Stillwater, KY

Average cloud cover in December - Stillwater, KY
  • Average cloud cover in December: 54

The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Stillwater, KY

Average visibility in December - Stillwater, KY
  • Average visibility in December: 5mi

The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).

Stillwater, Kentucky, USA

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