December weather forecast
Zalma, MO

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Weather in December

The first month of the winter, December, is also a frosty month in Zalma, Missouri, with an average temperature fluctuating between 32.4°F (0.2°C) and 45°F (7.2°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's fresh 54.5°F (12.5°C) to a chilly 45°F (7.2°C). In December, Zalma records an average nighttime temperature of 32.4°F (0.2°C).

Humidity

In Zalma, the average relative humidity in December is 77%.

Rainfall

In December, in Zalma, the rain falls for 10 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 156.6 rainfall days, and 35.47" (901mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In Zalma, in December, snow falls for 1.9 days, with typically accumulated 0.98" (25mm) of snow. In Zalma, during the entire year, snow falls for 11.7 days and aggregates up to 4.69" (119mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:43 pm. On the last day of December, in Zalma, Missouri, sunrise is at 7:13 am and sunset at 4:53 pm CST.

Sunshine

January, February and December, with an average of 4.9h of sunshine, are months with the least sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Zalma in December?

December temperatures vary between a high-temperature of 45°F (7.2°C) and a low-temperature of 32.4°F (0.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in September is computed to be 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Zalma, in December, during 10 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

How many days does it snow in December in Zalma?

In Zalma, in December, snow falls for 1.9 days, with typically accumulated 0.98" (25mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year in Zalma, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 40min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:53 pm CST.

What are the months with the least sunshine?

January, February and December, with an average of 4.9h of sunshine, are months with the least sunshine.

How many hours of sunshine does Zalma have in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to 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
Zalma, MO

Average temperature in December - Zalma, MO
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in December
Zalma, MO

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Zalma, MO

Average wind speed in December - Zalma, MO
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in December
Zalma, MO

Average humidity in December - Zalma, MO
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Zalma, MO

Average rainfall in December - Zalma, MO
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Zalma, MO

Average rainfall days in December - Zalma, MO
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in December
Zalma, MO

Average snowfall in December - Zalma, MO
  • Average snowfall in December: 0.98"

The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Zalma, MO

Average snowfall days in December - Zalma, MO
  • Average snowfall days in December: 1.9 days

The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Zalma, MO

Average daylight in December / Average sunshine in December - Zalma, MO
  • 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 42min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 54min).

Average sunshine days in December
Zalma, MO

Average sunshine days in December - Zalma, MO
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Zalma, MO

Average UV index in December - Zalma, MO
  • 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
Zalma, MO

Average cloud cover in December - Zalma, MO
  • Average cloud cover in December: 47

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Zalma, MO

Average visibility in December - Zalma, 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).

Zalma, Missouri, USA

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