Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January brings the lowest temperatures, with an average high of 26.2°F (-3.2°C) and an average low of 12.6°F (-10.8°C).Humidity
The most humid month is January, with an average relative humidity of 85%.Rainfall
January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 0.35" (9mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Fort Pierre, during January, snow falls for 9.8 days and regularly aggregates up to 1.97" (50mm) of snow. In Fort Pierre, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.Daylight
In Fort Pierre, the average length of the day in January is 9h and 19min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:12 pm. On the last day of January, sunrise is at 7:00 am and sunset at 4:48 pm MST.
Sunshine
With an average of 4.6h of sunshine, January has the least sunshine of the year.UV index
In Fort Pierre, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 2 in January transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Fort Pierre have in January?
When is the sunrise / sunset in January in Fort Pierre?
What is the month with the least sunshine?
How many hours of sunshine does Fort Pierre have in January?
What is the UV index intensity in January?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Fort Pierre, South Dakota, USA
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