Lead
South Dakota, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Lead, SD

The first month of the winter, December, is still a cold month in Lead, South Dakota, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 16°F (-8.9°C).

Temperature

With an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 16°F (-8.9°C), December is the coldest month.

Rainfall

In Lead, during December, the rain falls for 8 days and regularly aggregates up to 1.5" (38.4mm) of precipitation. Throughout the year, there are 105 rainfall days, and 30.6" (776mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall in Lead. In Lead, South Dakota, 19.5" (495.3mm) of snow is typically accumulated. Throughout the year, 144.9" (3680.4mm) of snow is accumulated.

Daylight

With an average of 8.9h of daylight, December has the shortest days of the year in Lead.

Sunshine

Months with the least sunshine are January, November and December, with an average of 5h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Lead?

The coldest month is December, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 16°F (-8.9°C).

What is the temperature in December in Lead?

The average high-temperature, in December, in Lead, South Dakota, is 35.1°F (1.7°C), while the average low-temperature is 16°F (-8.9°C).

How many days does it rain in December in Lead?

In Lead, South Dakota, during December, the rain falls for 8 days and regularly aggregates up to 1.5" (38.4mm) of precipitation.

How much does it snow in Lead in December?

Throughout December, in Lead, South Dakota, 19.5" (495.3mm) of snow is accumulated.

What is the month with the shortest days in Lead?

With an average of 8.9h of daylight, December has the shortest days of the year in Lead.

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

In Lead, the average length of the day in December is 8.9h.

What is the month with the least sunshine in Lead?

Months with the least sunshine in Lead, South Dakota, are January, November and December, with an average of 5h of sunshine.

How many hours of sunshine does Lead have in December?

The average sunshine in December is 5h.

What are the months with the lowest UV index in Lead?

Months with the lowest UV index in Lead, South Dakota, are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in Lead?

The average daily maximum UV index in December in Lead is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Lead, SD
  • Average high temperature in December: 1.7°C

The warmest month (with the highest average high temperature) is July (26.1°C).
The month with the lowest average high temperature is December (1.7°C).

  • Average low temperature in December: -8.9°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is December (-8.9°C).

Average rainfall in December - Lead, SD
  • Average rainfall in December: 38.4mm

The wettest month (with the highest rainfall) is May (117.9mm).
The driest month (with the lowest rainfall) is January (34mm).

Average rainfall days in December - Lead, SD
  • Average rainfall days in December: 8 days

Months with the highest number of rainy days are May and June (12 days).
Months with the lowest number of rainy days are October and November (6 days).

Average snowfall in December - Lead, SD
  • Average snowfall in December: 495.3mm

The month with the highest snowfall is March (650.2mm).
Months with the lowest snowfall are July and August (0mm).

Average daylight in December / Average sunshine in December - Lead, SD
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 5h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in December - Lead, SD
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).