January weather forecast
Saint Francis, SD

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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.
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Frequently asked questions

What is the coldest month in Saint Francis?

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.

How cold is it in Saint Francis in January?

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.

What is the most humid month in Saint Francis?

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

What is the average humidity in January in Saint Francis?

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

What is the driest month in Saint Francis?

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.

How many days does it rain in January in Saint Francis?

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

How much does it snow in Saint Francis in January?

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

What is the average length of the day in January in Saint Francis?

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

When is the sunrise / sunset in January in Saint Francis?

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.

What is the month with the least sunshine in Saint Francis?

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

How long on average sun shines in January in Saint Francis?

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

What is the month with the lowest UV index in Saint Francis?

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

How high is the UV index in January in Saint Francis?

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
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
31.8°F -0.1°C
31.5°F -0.3°C
34°F 1.1°C
Average low temperature
20.1°F -6.6°C
18.5°F -7.5°C
19.8°F -6.8°C
Average pressure
30.13" 765mmHg
30.15" 766mmHg
30.14" 766mmHg
Average wind speed
11.9mph 19.2km/h
12.2mph 19.6km/h
11.7mph 18.8km/h
Average max. wind speed
12.7mph 20.4km/h
13mph 20.9km/h
12.4mph 20km/h
Average wind speed gusts
20.4mph 32.8km/h
20.9mph 33.6km/h
18.8mph 30.3km/h
Average humidity
76%
78%
73%
Average rainfall
0.79" 20mm
0.47" 12mm
0.63" 16mm
Average rainfall days
3.7
2.4
3.1
Average snowfall
2.76" 70mm
2.05" 52mm
2.68" 68mm
Average snowfall days
7.1
9.7
9.6
Average daylight
9h 1min
9h 2min
10h 4min
Average sunshine
5h 3min
5h 2min
6h 4min
Average sunshine days
20.4
18.8
15.5
Average UV index
2
2
2
Average cloud cover
41%
43%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Saint Francis, SD

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).

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Average pressure in January
Saint Francis, SD

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).

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Average wind speed in January
Saint Francis, SD

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).

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Average humidity in January
Saint Francis, SD

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%).

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Average rainfall in January
Saint Francis, SD

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").

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Average rainfall days in January
Saint Francis, SD

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).

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Average snowfall in January
Saint Francis, SD

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").

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Average snowfall days in January
Saint Francis, SD

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).

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

Average daylight in January / Average sunshine in January - Saint Francis, SD
  • Average daylight in January: 9h and 2min

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 2min

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).

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Average sunshine days in January
Saint Francis, SD

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).

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Average UV index in January
Saint Francis, SD

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).

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Average cloud cover in January
Saint Francis, SD

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).

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Average visibility in January
Saint Francis, SD

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).

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Saint Francis, South Dakota, USA

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