December weather forecast
Claire City, SD

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Weather in December

The first month of the winter, December, is also a subzero cold month in Claire City, South Dakota, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 23.5°F (-4.7°C).

Temperature

December's arrival is marked by a significant decrease in the average high-temperature, moving from a wintry 39.6°F (4.2°C) in November to a freezing cold 23.5°F (-4.7°C). An average nighttime temperature of 12.6°F (-10.8°C) is recorded during December.

Humidity

In December, the average relative humidity is 86%.

Rainfall

In Claire City, during December, the rain falls for 3.4 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Claire City, during the entire year, the rain falls for 107.9 days and collects up to 20.63" (524mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Claire City is December, when snow falls for 11.5 days and typically aggregates up to 4.29" (109mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 42min of daylight.
On the first day of December, sunrise is at 7:50 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 4:53 pm CST.

Sunshine

In December, the average sunshine is 4h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.
Note: In December, an average UV index of 1 transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. During bright days, sunglasses that offer UVA and UVB defense are recommended. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The high-temperature during December is 23.5°F (-4.7°C) and the low-temperature is 12.6°F (-10.8°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is evaluated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December in Claire City, South Dakota, is 86%.

How much does it rain in December?

In December, the rain falls for 3.4 days. Throughout December, 0.94" (24mm) of precipitation is accumulated.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 11.5 days and accumulates 4.29" (109mm) of snow.

How much does it snow in December?

In Claire City, during December, snow falls for 11.5 days and regularly aggregates up to 4.29" (109mm) of snow.

What is the month with the shortest days?

With an average of 8h and 42min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 8h and 44min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:50 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 4:53 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4h.

When is the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index reading in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe 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
Claire City, SD

Average temperature in December - Claire City, SD
  • Average high temperature in December: 23.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in December: 12.6°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

Average pressure in December
Claire City, SD

Average pressure in December - Claire City, SD
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Claire City, SD

Average wind speed in December - Claire City, SD
  • Average wind speed in December: 10.7mph

The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

Average humidity in December
Claire City, SD

Average humidity in December - Claire City, SD
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).

Average rainfall in December
Claire City, SD

Average rainfall in December - Claire City, SD
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in December
Claire City, SD

Average rainfall days in December - Claire City, SD
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).

Average snowfall in December
Claire City, SD

Average snowfall in December - Claire City, SD
  • Average snowfall in December: 4.29"

The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Claire City, SD

Average snowfall days in December - Claire City, SD
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Claire City, SD

Average daylight in December / Average sunshine in December - Claire City, SD
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Claire City, SD

Average sunshine days in December - Claire City, SD
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in December
Claire City, SD

Average UV index in December - Claire City, SD
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Claire City, SD

Average cloud cover in December - Claire City, SD
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in December
Claire City, SD

Average visibility in December - Claire City, SD
  • Average visibility in December: 6mi

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

Claire City, South Dakota, USA

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