January weather forecast
Mission, SD

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Weather in January

January, the same as December, in Mission, South Dakota, is another subzero cold winter month, with an average temperature varying between 31.5°F (-0.3°C) and 18.5°F (-7.5°C).

Temperature

Mission witnesses the coldest weather in January, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 18.5°F (-7.5°C).

Humidity

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

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 Mission, in January, during 9.7 snowfall days, 2.05" (52mm) of snow is typically accumulated. In Mission, during the entire year, snow falls for 41.1 days and aggregates up to 14.53" (369mm) of snow.

Daylight

In Mission, the average length of the day in January is 9h and 25min.
On the first day of January, sunrise is at 8:14 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:52 pm CST.

Sunshine

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

UV index

The months with the lowest UV index in Mission 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What time of the year is the coldest in Mission?

January stands out as Mission's coldest month, with an average high-temperature of 31.5°F (-0.3°C) and a low-temperature of 18.5°F (-7.5°C).

How cold is January in Mission?

An average high-temperature, in January, in Mission, is 31.5°F (-0.3°C) and the average low-temperature is 18.5°F (-7.5°C).

What is the most humid month in Mission?

January is the most humid month in Mission, South Dakota, with an average relative humidity of 78%.

What is the average humidity in January in Mission?

In January, the average relative humidity is 78%.

What is the driest month in Mission?

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

How many days does it rain in January in Mission?

In January, in Mission, the rain falls for 2.4 days. Throughout January, 0.47" (12mm) of precipitation is accumulated.

How many days does it snow in January in Mission?

In January, it is snowing for 9.7 days. Throughout January, 2.05" (52mm) of snow is accumulated.

How many hours of daylight does Mission have in January?

The average day length in January in Mission, South Dakota, is 9h and 25min.

What time are sunrise and sunset in January in Mission?

On the first day of January, sunrise is at 8:14 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:52 pm CST.

What is the month with the least sunshine in Mission?

January has the least sunshine of the year in Mission, with an average of 5.4h of sunshine.

How many hours of sunshine does Mission have in January?

The average sunshine duration in January in Mission, South Dakota, is 5.4h.

When is the lowest UV index in Mission?

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

What is the UV index reading in January in Mission?

The average daily maximum UV index in January in Mission is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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 0min
9h 2min
10h 3min
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
Mission, SD

Average temperature in January - Mission, 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
Mission, SD

Average pressure in January - Mission, 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
Mission, SD

Average wind speed in January - Mission, 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
Mission, SD

Average humidity in January - Mission, 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
Mission, SD

Average rainfall in January - Mission, 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
Mission, SD

Average rainfall days in January - Mission, 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
Mission, SD

Average snowfall in January - Mission, 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
Mission, SD

Average snowfall days in January - Mission, 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
Mission, SD

Average daylight in January / Average sunshine in January - Mission, 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 0min).

  • 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
Mission, SD

Average sunshine days in January - Mission, 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
Mission, SD

Average UV index in January - Mission, 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
Mission, SD

Average cloud cover in January - Mission, 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
Mission, SD

Average visibility in January - Mission, 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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Mission, South Dakota, USA

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