January weather forecastPlankinton, SD
January
Weather in January
January, the same as December, in Plankinton, South Dakota, is another subzero cold winter month, with temperature in the range of an average high of 24.4°F (-4.2°C) and an average low of 10.2°F (-12.1°C).Temperature
In Plankinton, January records the lowest average temperatures, peaking at 24.4°F (-4.2°C) and reaching a low of 10.2°F (-12.1°C).Humidity
January is the most humid month, with an average relative humidity of 87%.Rainfall
In Plankinton, in January, during 2.6 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, in Plankinton, there are 93.2 rainfall days, and 11.3" (287mm) of precipitation is accumulated.Snowfall
Months with snowfall in Plankinton are January through April, October through December. In Plankinton, in January, during 8.7 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Plankinton, during the entire year, snow falls for 35.3 days and aggregates up to 7.17" (182mm) of snow.Daylight
In Plankinton, the average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 8:07 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:51 am and sunset at 5:42 pm CST.
Sunshine
January has the least sunshine of the year in Plankinton, South Dakota, with an average of 4.4h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 1 in January translates into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Plankinton, SD
- Average high temperature in January: 24.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in January: 10.2°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in January
Plankinton, SD
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Plankinton, SD
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in January
Plankinton, SD
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall in January
Plankinton, SD
- Average rainfall in January: 0.31"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and November (0.28").
Average rainfall days in January
Plankinton, SD
- Average rainfall days in January: 2.6 days
The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in January
Plankinton, SD
- Average snowfall in January: 1.38"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Plankinton, SD
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Plankinton, SD
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Plankinton, SD
- Average sunshine days in January: 21.6 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in January
Plankinton, SD
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Plankinton, SD
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in January
Plankinton, 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).





