January weather forecast
Fort Pierre, SD

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Weather in January

January unfurls a blanket of chilly temperatures and snowfall in Fort Pierre with average monthly high temperatures reaching 26.2°F (-3.2°C) and low temperature dropping to 12.6°F (-10.8°C). Assisting in the winter landscape is an average snowfall of 1.97" (50mm). Grey days are prominent as the increased cloudiness blankets the city in winter serenity. Travel can be impeded due to reduced visibility and slippery road conditions. As expected, the wind speed sees an increase, causing the already frigid temperatures to feel significantly colder.

Temperature

The month of January, characterized by an average high of 26.2°F (-3.2°C) and a low of 12.6°F (-10.8°C), is recognized as the coldest in Fort Pierre, South Dakota.

Humidity

The most humid month is January, with an average relative humidity of 85%.

Rainfall

The month with the least rainfall in Fort Pierre is January, when the rain falls for 2.7 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Fort Pierre, South Dakota. In Fort Pierre, in January, during 9.8 snowfall days, 1.97" (50mm) of snow is typically accumulated. In Fort Pierre, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.

Daylight

The average length of the day in January in Fort Pierre is 9h and 19min.
On the first day of January in Fort Pierre, sunrise is at 7:17 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:48 pm MST.

Sunshine

January has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

In Fort Pierre, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during January leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What month is the coldest in Fort Pierre?

In Fort Pierre, the average lowest temperatures are observed in January, with a high of 26.2°F (-3.2°C) and a low of 12.6°F (-10.8°C).

How cold is January in Fort Pierre?

The high-temperature, in January, in Fort Pierre, records 26.2°F (-3.2°C), while the low-temperature is 12.6°F (-10.8°C).

What is the most humid month in Fort Pierre?

With an average relative humidity of 85%, January is the most humid month in Fort Pierre.

What is the average humidity in January in Fort Pierre?

In Fort Pierre, South Dakota, the average relative humidity in January is 85%.

What is the driest month in Fort Pierre?

January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 0.35" (9mm) of precipitation.

How many days does it rain in January in Fort Pierre?

In January, in Fort Pierre, South Dakota, the rain falls for 2.7 days. Throughout January, 0.35" (9mm) of precipitation is accumulated.

How much does it snow in Fort Pierre in January?

In Fort Pierre, during January, snow falls for 9.8 days and regularly aggregates up to 1.97" (50mm) of snow.

How many hours of daylight does Fort Pierre have in January?

The average day length in January in Fort Pierre, South Dakota, is 9h and 19min.

What time are sunrise and sunset in January in Fort Pierre?

On the first day of January in Fort Pierre, South Dakota, sunrise is at 7:17 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:48 pm MST.

What is the month with the least sunshine in Fort Pierre?

January has the least sunshine of the year in Fort Pierre, South Dakota, with an average of 4.6h of sunshine.

How many hours of sunshine does Fort Pierre have in January?

In January, the average sunshine duration in Fort Pierre is 4.6h.

What is the UV index reading in January in Fort Pierre?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
28.2°F -2.1°C
26.2°F -3.2°C
28.8°F -1.8°C
Average low temperature
16.3°F -8.7°C
12.6°F -10.8°C
15.3°F -9.3°C
Average pressure
30.14" 766mmHg
30.16" 766mmHg
30.15" 766mmHg
Average wind speed
10mph 16.1km/h
10.3mph 16.6km/h
9.9mph 15.9km/h
Average max. wind speed
10.7mph 17.2km/h
11.1mph 17.9km/h
10.5mph 16.9km/h
Average wind speed gusts
17.1mph 27.5km/h
17.6mph 28.3km/h
15.8mph 25.4km/h
Average humidity
82%
85%
80%
Average rainfall
0.67" 17mm
0.35" 9mm
0.55" 14mm
Average rainfall days
2.9
2.7
2.4
Average snowfall
2.48" 63mm
1.97" 50mm
3.66" 93mm
Average snowfall days
8.2
9.8
10
Average daylight
8h 5min
9h 2min
10h 3min
Average sunshine
4h 5min
4h 4min
5h 5min
Average sunshine days
20.9
19.7
17.7
Average UV index
1
2
1
Average cloud cover
46%
50%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Fort Pierre, SD

Average temperature in January - Fort Pierre, SD
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 12.6°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in January
Fort Pierre, SD

Average pressure in January - Fort Pierre, SD
  • Average pressure in January: 30.16"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).

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Average wind speed in January
Fort Pierre, SD

Average wind speed in January - Fort Pierre, SD
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in January
Fort Pierre, SD

Average humidity in January - Fort Pierre, SD
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in January
Fort Pierre, SD

Average rainfall in January - Fort Pierre, SD
  • Average rainfall in January: 0.35"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in January
Fort Pierre, SD

Average rainfall days in January - Fort Pierre, SD
  • Average rainfall days in January: 2.7 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in January
Fort Pierre, SD

Average snowfall in January - Fort Pierre, SD
  • Average snowfall in January: 1.97"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Fort Pierre, SD

Average snowfall days in January - Fort Pierre, SD
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Fort Pierre, SD

Average daylight in January / Average sunshine in January - Fort Pierre, 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: 4h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in January
Fort Pierre, SD

Average sunshine days in January - Fort Pierre, SD
  • Average sunshine days in January: 19.7 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in January
Fort Pierre, SD

Average UV index in January - Fort Pierre, SD
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in January
Fort Pierre, SD

Average cloud cover in January - Fort Pierre, SD
  • Average cloud cover in January: 50

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in January
Fort Pierre, SD

Average visibility in January - Fort Pierre, SD
  • Average visibility in January: 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).

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Fort Pierre, South Dakota, USA

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