December weather forecast
Westboro, MO

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Weather in December

The first month of the winter, December, is still a cold month in Westboro, Missouri, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 23.9°F (-4.5°C).

Temperature

The average high-temperature decreases in December, shifting from a fresh 50.2°F (10.1°C) in November to an icy 36.5°F (2.5°C). An average low-temperature of 23.9°F (-4.5°C) is observed during the December nights.

Humidity

The average relative humidity in December in Westboro, Missouri, is 76%.

Rainfall

In Westboro, during December, the rain falls for 4 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, in Westboro, there are 120.8 rainfall days, and 24.09" (612mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Westboro, Missouri, in December, snow falls for 4.5 days, with typically accumulated 1.46" (37mm) of snow. In Westboro, during the entire year, snow falls for 23.5 days and aggregates up to 10.51" (267mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December in Westboro, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:04 pm CST.

Sunshine

In Westboro, the average sunshine in December 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 Westboro. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 2 in December translates into these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Westboro in December?

In December, in Westboro, the average high-temperature is 36.5°F (2.5°C), and the average low-temperature is 23.9°F (-4.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in December in Westboro?

The average relative humidity in December in Westboro is 76%.

How many days does it rain in December in Westboro?

In Westboro, in December, during 4 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

How much does it snow in Westboro in December?

In December, in Westboro, it is snowing for 4.5 days. Throughout December, 1.46" (37mm) of snow is accumulated.

What is the month with the shortest days in Westboro?

December has the shortest days of the year in Westboro, Missouri, with an average of 9h and 18min of daylight.

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

The average day length in December in Westboro, Missouri, is 9h and 20min.

What time are sunrise and sunset in December in Westboro?

On the first day of December in Westboro, Missouri, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:04 pm CST.

How long on average sun shines in December in Westboro?

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

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

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

What is the UV index reading in December in Westboro?

In December, the average daily maximum UV index in Westboro, Missouri, is 2. A UV Index estimate of 2, and below, represents 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
Westboro, MO

Average temperature in December - Westboro, MO
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in December
Westboro, MO

Average pressure in December - Westboro, MO
  • 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
Westboro, MO

Average wind speed in December - Westboro, MO
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in December
Westboro, MO

Average humidity in December - Westboro, MO
  • Average humidity in December: 76%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Westboro, MO

Average rainfall in December - Westboro, MO
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in December
Westboro, MO

Average rainfall days in December - Westboro, MO
  • Average rainfall days in December: 4 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in December
Westboro, MO

Average snowfall in December - Westboro, MO
  • Average snowfall in December: 1.46"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Westboro, MO

Average snowfall days in December - Westboro, MO
  • Average snowfall days in December: 4.5 days

The months with the highest number of snowfall days are January and February (6.7 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
Westboro, MO

Average daylight in December / Average sunshine in December - Westboro, MO
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in December
Westboro, MO

Average sunshine days in December - Westboro, MO
  • Average sunshine days in December: 21.5 days

The months with the most sunshine days are November and December (21.5 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in December
Westboro, MO

Average UV index in December - Westboro, 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).

Average cloud cover in December
Westboro, MO

Average cloud cover in December - Westboro, MO
  • Average cloud cover in December: 43

The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in December
Westboro, MO

Average visibility in December - Westboro, 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).

Westboro, Missouri, USA

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