January weather forecastHarrisburg, SD
January
Weather in January
Cold and snowy best describe January weather in Harrisburg, South Dakota. The region sees its most frigid temperatures during this month, with a maximum of 24.1°F (-4.4°C) and minimum down to 10.6°F (-11.9°C). It's not unusual to see significant snow, making it popular for winter sports enthusiasts. However, the limited sunlight hours and sometimes dense fog might impede outdoor activities.Temperature
In Harrisburg, the month of January is known for its lowest average temperatures, reaching a high of 24.1°F (-4.4°C) and a low of 10.6°F (-11.9°C).Humidity
January is the most humid month, with an average relative humidity of 87%.Rainfall
The months with the least rainfall are January, February and November Rain falls for 3.3 days and accumulates 0.67" (17mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 9.5 days. Throughout January, 2.91" (74mm) of snow is accumulated. In Harrisburg, during the entire year, snow falls for 40.5 days and aggregates up to 16.77" (426mm) of snow.Daylight
The average length of the day in January is 9h and 24min.On the first day of the month, sunrise is at 7:59 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:36 pm CST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Harrisburg, SD
- Average high temperature in January: 24.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in January: 10.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in January
Harrisburg, 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 (29.86"Hg).
Average wind speed in January
Harrisburg, 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 (7.8mph).
Average humidity in January
Harrisburg, SD
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).
Average rainfall in January
Harrisburg, SD
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January, February and November (0.67").
Average rainfall days in January
Harrisburg, SD
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in January
Harrisburg, SD
- Average snowfall in January: 2.91"
The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Harrisburg, SD
- Average snowfall days in January: 9.5 days
The month with the highest number of snowfall days is December (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Harrisburg, 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 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Harrisburg, SD
- Average sunshine days in January: 20.2 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in January
Harrisburg, SD
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Harrisburg, SD
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in January
Harrisburg, 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).
