December weather forecast
Saint John, KS

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Weather in December

December, the first month of the winter in Saint John, is still a chilly month, with an average temperature ranging between max 43.3°F (6.3°C) and min 27.5°F (-2.5°C).

Temperature

Saint John's coldest months, January and December, record an average high-temperature of 43.3°F (6.3°C).

Humidity

December is the most humid month, with an average relative humidity of 65%.

Rainfall

In Saint John, during December, the rain falls for 4.1 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Saint John, during the entire year, the rain falls for 100.8 days and collects up to 16.57" (421mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Saint John, during December, snow falls for 3.6 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, there are 19.9 snowfall days, and 8.7" (221mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 36min of daylight.
On the first day of December, sunrise is at 7:32 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:25 pm CST.

Sunshine

The months with the least sunshine are January and December, with an average of 6.3h of sunshine.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Saint John experiences its coldest period in January and December, averaging a high-temperature of 43.3°F (6.3°C).

How cold is December in Saint John?

Saint John in December has an average high-temperature of 43.3°F (6.3°C) and an average low-temperature of 27.5°F (-2.5°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 84.2°F (29°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 65%.

What is the average humidity in December?

In December, the average relative humidity is 65%.

How much does it rain in December?

In December, in Saint John, the rain falls for 4.1 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

How much does it snow in December?

In Saint John, during December, snow falls for 3.6 days and regularly aggregates up to 1.14" (29mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Saint John is December, with an average of 9h and 36min of daylight.

What is the average length of the day in December?

The average day length in December is 9h and 35min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:32 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:25 pm CST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 6.3h of sunshine.

How many hours of sunshine does Saint John have in December?

The average sunshine duration in December is 6.3h.

What is the month with the lowest UV index?

January, 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 December, the average daily maximum UV index is 2. A UV Index value 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
Saint John, KS

Average temperature in December - Saint John, KS
  • Average high temperature in December: 43.3°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The months with the lowest average high temperature are January and December (43.3°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in December
Saint John, KS

Average pressure in December - Saint John, KS
  • 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 (29.84"Hg).

Average wind speed in December
Saint John, KS

Average wind speed in December - Saint John, KS
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).

Average humidity in December
Saint John, KS

Average humidity in December - Saint John, KS
  • Average humidity in December: 65%

The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is July (56%).

Average rainfall in December
Saint John, KS

Average rainfall in December - Saint John, KS
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in December
Saint John, KS

Average rainfall days in December - Saint John, KS
  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is January (3.7 days).

Average snowfall in December
Saint John, KS

Average snowfall in December - Saint John, KS
  • Average snowfall in December: 1.14"

The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Saint John, KS

Average snowfall days in December - Saint John, KS
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is February (5.6 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
Saint John, KS

Average daylight in December / Average sunshine in December - Saint John, KS
  • Average daylight in December: 9h and 4min

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 36min).

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 6h and 18min).

Average sunshine days in December
Saint John, KS

Average sunshine days in December - Saint John, KS
  • Average sunshine days in December: 23.5 days

The month with the most sunshine days is December (23.5 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in December
Saint John, KS

Average UV index in December - Saint John, KS
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in December
Saint John, KS

Average cloud cover in December - Saint John, KS
  • Average cloud cover in December: 29

The month with the most cloud cover is April (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 18).

Average visibility in December
Saint John, KS

Average visibility in December - Saint John, 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).

Saint John, Kansas, USA

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