January weather forecastSaint Francis, SD

January

Weather in January

January, like December, is another subzero cold winter month in Saint Francis, South Dakota, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 18.5°F (-7.5°C).

Temperature

January, with average temperatures reaching a high of 31.5°F (-0.3°C) and a low of 18.5°F (-7.5°C), is the coldest month.

Humidity

With an average relative humidity of 78%, January is the most humid month in Saint Francis, South Dakota.

Rainfall

January is the month with the least rainfall. Rain falls for 2.4 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In January, in Saint Francis, it is snowing for 9.7 days. Throughout January, 2.05" (52mm) of snow is accumulated. Throughout the year, there are 41.1 snowfall days, and 14.53" (369mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 26min.
On the first day of the month, sunrise is at 8:15 am and sunset at 5:18 pm. On the last day of January, sunrise is at 8:00 am and sunset at 5:53 pm CST.

Sunshine

With an average of 5.4h of sunshine, January has the least sunshine of the year in Saint Francis, South Dakota.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

January, with its high-temperature average of 31.5°F (-0.3°C) and a low-temperature average of 18.5°F (-7.5°C), is the coldest month in Saint Francis, South Dakota.

The average high-temperature and low-temperature in Saint Francis, South Dakota, during January are 31.5°F (-0.3°C) and 18.5°F (-7.5°C) respectively.

The most humid month is January, with an average relative humidity of 78%.

The average relative humidity in January in Saint Francis, South Dakota, is 78%.

The month with the least rainfall in Saint Francis is January, when the rain falls for 2.4 days and typically collects 0.47" (12mm) of precipitation.

In Saint Francis, in January, it is raining for 2.4 days, with typically 0.47" (12mm) of accumulated precipitation.

In Saint Francis, during January, snow falls for 9.7 days and regularly aggregates up to 2.05" (52mm) of snow.

In January, the average day length in Saint Francis, South Dakota, is 9h and 26min.

On the first day of January, sunrise is at 8:15 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:53 pm CST.

With an average of 5.4h of sunshine, January has the least sunshine of the year in Saint Francis.

In January, the average sunshine duration in Saint Francis, South Dakota, is 5.4h.

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

31.8°F

31.5°F

34°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.7mph

13mph

12.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

20.4

18.8

15.5

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Saint Francis, SD

Average high temperature in January: 31.5°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (31.5°F).

Average low temperature in January: 18.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in January
Saint Francis, 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
Saint Francis, SD

Average wind speed in January: 12.2mph

The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).

Average humidity in January
Saint Francis, SD

Average humidity in January: 78%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).

Average rainfall in January
Saint Francis, SD

Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in January
Saint Francis, SD

Average rainfall days in January: 2.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in January
Saint Francis, SD

Average snowfall in January: 2.05"

The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Saint Francis, SD

Average snowfall days in January: 9.7 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Saint Francis, SD

Average daylight in January: 9h and 24min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

Average sunshine in January: 5h and 24min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in January
Saint Francis, SD

Average sunshine days in January: 18.8 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in January
Saint Francis, 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
Saint Francis, SD

Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).

Average visibility in January
Saint Francis, 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).