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
In Union Center, January's average high-temperature stands at a still wintry 32.4°F (0.2°C), closely related to the preceding month. In January, the nighttime temperature lowers to an average of 18.7°F (-7.4°C).Humidity
January is the most humid month, with an average relative humidity of 77%.Rainfall
The month with the least rainfall is January, when the rain falls for 6.5 days and typically collects 0.59" (15mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Union Center, in January, snow falls for 11.4 days, with typically accumulated 3.19" (81mm) of snow. Throughout the year, there are 62.1 snowfall days, and 36.26" (921mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 17min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:21 pm. On the last day of January, sunrise is at 7:10 am and sunset at 4:57 pm MST.
Sunshine
In January, the average sunshine is 6h.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 minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in January translates into these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 much does it snow in January?
What is the average length of the day in January in Union Center?
When are sunrise and sunset in January in Union Center?
How long on average sun shines in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Union Center, SD
- Average high temperature in January: 32.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (32.2°F).
- Average low temperature in January: 18.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in January
Union Center, SD
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Union Center, SD
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in January
Union Center, SD
- Average humidity in January: 77%
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (49%).
Average rainfall in January
Union Center, SD
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in January
Union Center, SD
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (5.8 days).
Average snowfall in January
Union Center, SD
- Average snowfall in January: 3.19"
The month with the highest snowfall is April (8.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Union Center, SD
- Average snowfall days in January: 11.4 days
The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Union Center, 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: 6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in January
Union Center, SD
- Average sunshine days in January: 17.1 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in January
Union Center, SD
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Union Center, SD
- Average cloud cover in January: 37
The months with the most cloud cover are February and April (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in January
Union Center, SD
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Union Center, South Dakota, USA
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