January weather forecastPierre, SD

January
Weather in January
January represents the quintessential winter season in Pierre, South Dakota, characterized by long nights and biting cold temperatures. This month experiences the year's shortest daylight hours, averaging only 9.3 hours per day. Notably, the coldest temperatures are prevalent now, dropping to low averages of 12.6°F (-10.8°C), causing heavy layers to be a necessity. Snowfall is frequent in January, but not dominating, contributing to a bright and wintry cityscape. Outdoor activities typically include ice fishing and snowmobiling, making full use of the chilling January weather.Temperature
January is the coldest month of the year, registering average temperatures as high as 26.2°F (-3.2°C) and as low as 12.6°F (-10.8°C).Humidity
With an average relative humidity of 85%, January is the most humid month.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 Pierre. In January, it is snowing for 9.8 days. Throughout January, 1.97" (50mm) of snow is accumulated. In Pierre, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.Daylight
In January, the average length of the day is 9h and 19min.On the first day of January, sunrise is at 8:17 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:48 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.6h of sunshine.UV index
The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a daily UV index of 2 turns into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. To guard against the harmful effects of the Sun, minimize exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
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
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
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
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
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
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
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
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
Pierre, SD
- Average daylight in January: 9h and 18min
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 36min
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
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
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
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
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).





