January weather forecastWall, SD
January
Weather in January
January, like December, is another subzero cold winter month in Wall, South Dakota, with an average temperature ranging between min 16.7°F (-8.5°C) and max 29.8°F (-1.2°C).Temperature
In Wall, the lowest average temperatures are observed in January, with a high of 29.8°F (-1.2°C) and a low of 16.7°F (-8.5°C).Humidity
January is the most humid month, with an average relative humidity of 81%.Rainfall
January is the month with the least rainfall. Rain falls for 2.8 days and accumulates 0.39" (10mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 8.4 days. Throughout January, 2.09" (53mm) of snow is accumulated. Throughout the year, in Wall, there are 38.8 snowfall days, and 16.1" (409mm) of snow is accumulated.Daylight
In Wall, the average length of the day in January is 9h and 20min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:21 pm. On the last day of January, sunrise is at 7:07 am and sunset at 4:57 pm MST.
Sunshine
January and February, with an average of 5.2h of sunshine, are months with the least sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Wall, SD
- Average high temperature in January: 29.8°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in January: 16.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in January
Wall, SD
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Wall, SD
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).
Average humidity in January
Wall, SD
- Average humidity in January: 81%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).
Average rainfall in January
Wall, SD
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in January
Wall, SD
- Average rainfall days in January: 2.8 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in January
Wall, SD
- Average snowfall in January: 2.09"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Wall, SD
- Average snowfall days in January: 8.4 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Wall, SD
- Average daylight in January: 9h and 18min
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: 5h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in January
Wall, SD
- Average sunshine days in January: 20.6 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).
Average UV index in January
Wall, SD
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Wall, SD
- Average cloud cover in January: 46
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in January
Wall, 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).





