December weather forecast
Windsor, MO

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Weather in December

December, the first month of the winter in Windsor, is still a cold month, with an average temperature ranging between max 42.3°F (5.7°C) and min 28.6°F (-1.9°C).

Temperature

The arrival of December indicates a decrease in the average high-temperature, moving from a cool 53.1°F (11.7°C) in November to an icy 42.3°F (5.7°C). Throughout December, the average low-temperature dips to a freezing cold 28.6°F (-1.9°C).

Humidity

In Windsor, Missouri, the average relative humidity in December is 75%.

Rainfall

In December, in Windsor, the rain falls for 7.1 days. Throughout December, 1.14" (29mm) of precipitation is accumulated. In Windsor, during the entire year, the rain falls for 130 days and collects up to 21.81" (554mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Windsor. In Windsor, in December, snow falls for 3.7 days, with typically accumulated 1.18" (30mm) of snow. In Windsor, during the entire year, snow falls for 19.3 days and aggregates up to 5.39" (137mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of December in Windsor, sunrise is at 7:13 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:03 pm CST.

Sunshine

The average sunshine in December in Windsor is 5.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Windsor. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Windsor in December?

The high-temperature, in December, in Windsor, records 42.3°F (5.7°C), while the low-temperature is 28.6°F (-1.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 95°F (35°C).

What is the average humidity in December in Windsor?

In Windsor, Missouri, the average relative humidity in December is 75%.

How much does it rain in Windsor in December?

In December, in Windsor, Missouri, the rain falls for 7.1 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How much does it snow in Windsor in December?

In December, in Windsor, it is snowing for 3.7 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in Windsor?

December has the shortest days of the year in Windsor, with an average of 9h and 30min of daylight.

How many hours of daylight does Windsor have in December?

In Windsor, the average day length in December is 9h and 32min.

When is the sunrise / sunset in December in Windsor?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:53 pm. On the last day of the month, in Windsor, sunrise is at 7:31 am and sunset at 5:03 pm CST.

How many hours of sunshine does Windsor have in December?

In Windsor, Missouri, the average sunshine duration in December is 5.2h.

What is the month with the lowest UV index in Windsor?

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

What is the UV index intensity in December in Windsor?

In Windsor, Missouri, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from 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
Windsor, MO

Average temperature in December - Windsor, MO
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in December
Windsor, MO

Average pressure in December - Windsor, MO
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Windsor, MO

Average wind speed in December - Windsor, MO
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in December
Windsor, MO

Average humidity in December - Windsor, MO
  • Average humidity in December: 75%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Windsor, MO

Average rainfall in December - Windsor, MO
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in December
Windsor, MO

Average rainfall days in December - Windsor, MO
  • Average rainfall days in December: 7.1 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in December
Windsor, MO

Average snowfall in December - Windsor, MO
  • Average snowfall in December: 1.18"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Windsor, MO

Average snowfall days in December - Windsor, MO
  • Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is February (6.1 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
Windsor, MO

Average daylight in December / Average sunshine in December - Windsor, MO
  • 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: 5h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in December
Windsor, MO

Average sunshine days in December - Windsor, MO
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.9 days).

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Average UV index in December
Windsor, MO

Average UV index in December - Windsor, MO
  • 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).

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Average cloud cover in December
Windsor, MO

Average cloud cover in December - Windsor, MO
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).

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Average visibility in December
Windsor, MO

Average visibility in December - Windsor, MO
  • 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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Windsor, Missouri, USA

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