January weather forecast
Lead, SD

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Weather in January

In Lead, South Dakota, January typically brings a serene, cold landscape. In comparison, December sees slightly warmer conditions, while February carries on the chilly feel of January in full stride. January has the lowest average temperature of the entire year, dropping to 17.1°F (-8.3°C) at its coldest, making it a distinctive month. Expect a fair share of snowy days and minimal sunshine, contributing to an almost ethereal beauty. Despite the cold, January's weather fulfills the expectation of a quintessential winter month.

Temperature

As January takes hold, the average high-temperature is a still freezing cold 30.6°F (-0.8°C), nearly mirroring that of the previous month. During January, the nighttime temperature averages to a still subzero cold 17.1°F (-8.3°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 79%.

Rainfall

The month with the least rainfall is January, when the rain falls for 3.7 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Lead, during January, snow falls for 11.7 days and regularly aggregates up to 2.87" (73mm) of snow. In Lead, during the entire year, snow falls for 66.6 days and aggregates up to 34.53" (877mm) of snow.

Daylight

In January, the average length of the day in Lead is 9h and 19min.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:26 pm. On the last day of January, in Lead, South Dakota, sunrise is at 7:14 am and sunset at 5:02 pm MST.

Sunshine

In Lead, the average sunshine in January is 6h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold is it in Lead in January?

January temperatures in Lead vary between a high-temperature of 30.6°F (-0.8°C) and a low-temperature of 17.1°F (-8.3°C).

What is the most humid month in Lead?

The months with the highest humidity in Lead, South Dakota, are January and February, with an average relative humidity of 79%.

What is the average humidity in January in Lead?

The average relative humidity in January is 79%.

What is the driest month in Lead?

The month with the least rainfall in Lead, South Dakota, is January, when the rain falls for 3.7 days and typically collects 0.55" (14mm) of precipitation.

How many days does it rain in January in Lead?

In January, in Lead, South Dakota, the rain falls for 3.7 days. Throughout January, 0.55" (14mm) of precipitation is accumulated.

How many days does it snow in January in Lead?

In Lead, in January, snow falls for 11.7 days, with typically accumulated 2.87" (73mm) of snow.

How many hours of daylight does Lead have in January?

The average day length in January in Lead is 9h and 19min.

What time are sunrise and sunset in January in Lead?

In January, on the first day of the month, sunrise is at 7:30 am and sunset at 4:26 pm. On the last day of the month, in Lead, sunrise is at 7:14 am and sunset at 5:02 pm MST.

How long on average sun shines in January in Lead?

In Lead, the average sunshine duration in January is 6h.

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

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January in Lead?

In January, the average daily maximum UV index in Lead, South Dakota, is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
29.7°F -1.3°C
30.6°F -0.8°C
30.4°F -0.9°C
Average low temperature
16.7°F -8.5°C
17.1°F -8.3°C
15.4°F -9.2°C
Average pressure
30.13" 765mmHg
30.14" 766mmHg
30.12" 765mmHg
Average wind speed
9.5mph 15.3km/h
9.8mph 15.8km/h
9.1mph 14.6km/h
Average max. wind speed
10.2mph 16.4km/h
10.6mph 17.1km/h
9.8mph 15.8km/h
Average wind speed gusts
17.1mph 27.5km/h
17.3mph 27.8km/h
15.3mph 24.6km/h
Average humidity
77%
79%
79%
Average rainfall
0.67" 17mm
0.55" 14mm
0.71" 18mm
Average rainfall days
4.2
3.7
3.8
Average snowfall
3.78" 96mm
2.87" 73mm
4.49" 114mm
Average snowfall days
10.1
11.7
11.1
Average daylight
8h 5min
9h 2min
10h 3min
Average sunshine
6h 0min
6h 0min
5h 5min
Average sunshine days
19.5
17.8
15.7
Average UV index
2
2
2
Average cloud cover
37%
38%
40%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

Average temperature in January
Lead, SD

Average temperature in January - Lead, SD
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (15.4°F).

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Average pressure in January
Lead, SD

Average pressure in January - Lead, SD
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in January
Lead, SD

Average wind speed in January - Lead, SD
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).

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Average humidity in January
Lead, SD

Average humidity in January - Lead, SD
  • Average humidity in January: 79%

The months with the highest relative humidity are January and February (79%).
The months with the lowest relative humidity are August and September (51%).

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Average rainfall in January
Lead, SD

Average rainfall in January - Lead, SD
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in January
Lead, SD

Average rainfall days in January - Lead, SD
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is November (2.7 days).

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Average snowfall in January
Lead, SD

Average snowfall in January - Lead, SD
  • Average snowfall in January: 2.87"

The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").

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Average snowfall days in January
Lead, SD

Average snowfall days in January - Lead, SD
  • Average snowfall days in January: 11.7 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in January /
Average sunshine in January
Lead, SD

Average daylight in January / Average sunshine in January - Lead, SD
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 6h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

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Average sunshine days in January
Lead, SD

Average sunshine days in January - Lead, SD
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in January
Lead, SD

Average UV index in January - Lead, SD
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in January
Lead, SD

Average cloud cover in January - Lead, SD
  • Average cloud cover in January: 38

The months with the most cloud cover are February and April (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in January
Lead, SD

Average visibility in January - Lead, SD
  • Average visibility in January: 5mi

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).

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Lead, South Dakota, USA

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