January weather forecast
Revillo, SD

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Weather in January

January, the same as December, in Revillo, South Dakota, is another subzero cold winter month, with an average temperature varying between 19.6°F (-6.9°C) and 6.1°F (-14.4°C).

Temperature

January is Revillo's coldest month, registering average high temperatures of 19.6°F (-6.9°C) and lows of 6.1°F (-14.4°C).

Humidity

With an average relative humidity of 89%, January is the most humid month.

Rainfall

The months with the least rainfall are January and February Rain falls for 3.7 days and accumulates 0.63" (16mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Revillo, South Dakota, during January, snow falls for 13.1 days and regularly aggregates up to 4.09" (104mm) of snow. In Revillo, during the entire year, snow falls for 58.8 days and aggregates up to 20.39" (518mm) of snow.

Daylight

In Revillo, the average length of the day in January is 9h and 14min.
On the first day of the month, sunrise is at 8:04 am and sunset at 4:55 pm. On the last day of January, sunrise is at 7:47 am and sunset at 5:32 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.9h of sunshine.

UV index

January is the month with the lowest UV index in Revillo, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 1 in January translates into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Revillo?

January, having an average high-temperature of 19.6°F (-6.9°C) and an average low-temperature of 6.1°F (-14.4°C), is the coldest month.

How cold is January in Revillo?

During January, Revillo experiences an average high-temperature of 19.6°F (-6.9°C) and a low-temperature of 6.1°F (-14.4°C).

What is the most humid month in Revillo?

The most humid month is January, with an average relative humidity of 89%.

What is the average humidity in January in Revillo?

In January, the average relative humidity in Revillo is 89%.

What is the driest month in Revillo?

January and February are months with the least rain in Revillo when the rain falls for 3.7 days and typically aggregates up to 0.63" (16mm) of rain.

How much does it rain in Revillo in January?

In Revillo, in January, during 3.7 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How many days does it snow in January in Revillo?

In Revillo, South Dakota, during January, snow falls for 13.1 days and regularly aggregates up to 4.09" (104mm) of snow.

What is the average length of the day in January in Revillo?

In Revillo, South Dakota, the average day length in January is 9h and 14min.

What time are sunrise and sunset in January in Revillo?

In January, on the first day of the month, sunrise is at 8:04 am and sunset at 4:55 pm. On the last day of the month, in Revillo, sunrise is at 7:47 am and sunset at 5:32 pm CST.

What is the month with the least sunshine in Revillo?

January has the least sunshine of the year in Revillo, with an average of 3.9h of sunshine.

How long on average sun shines in January in Revillo?

The average sunshine duration in January in Revillo, South Dakota, is 3.9h.

What is the month with the lowest UV index in Revillo?

January is the month with the lowest UV index in Revillo, South Dakota, with an average maximum UV index of 1.

What is the UV index intensity in January in Revillo?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
24.6°F -4.1°C
19.6°F -6.9°C
22.8°F -5.1°C
Average low temperature
13.1°F -10.5°C
6.1°F -14.4°C
8.6°F -13°C
Average pressure
30.12" 765mmHg
30.16" 766mmHg
30.16" 766mmHg
Average wind speed
10.4mph 16.7km/h
10.4mph 16.7km/h
10.3mph 16.6km/h
Average max. wind speed
11.1mph 17.9km/h
11.1mph 17.9km/h
10.9mph 17.5km/h
Average wind speed gusts
17mph 27.4km/h
17.4mph 28km/h
16.7mph 26.9km/h
Average humidity
85%
89%
86%
Average rainfall
1.1" 28mm
0.63" 16mm
0.63" 16mm
Average rainfall days
4.2
3.7
2.3
Average snowfall
4.49" 114mm
4.09" 104mm
4.21" 107mm
Average snowfall days
12.7
13.1
12.2
Average daylight
8h 5min
9h 1min
10h 2min
Average sunshine
4h 1min
3h 5min
4h 4min
Average sunshine days
16.3
15.3
15.5
Average UV index
2
1
2
Average cloud cover
55%
58%
56%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

Average temperature in January
Revillo, SD

Average temperature in January - Revillo, SD
  • Average high temperature in January: 19.6°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in January: 6.1°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

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Average pressure in January
Revillo, SD

Average pressure in January - Revillo, SD
  • Average pressure in January: 30.16"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in January
Revillo, SD

Average wind speed in January - Revillo, SD
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in January
Revillo, SD

Average humidity in January - Revillo, SD
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in January
Revillo, SD

Average rainfall in January - Revillo, SD
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").

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Average rainfall days in January
Revillo, SD

Average rainfall days in January - Revillo, SD
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in January
Revillo, SD

Average snowfall in January - Revillo, SD
  • Average snowfall in January: 4.09"

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Revillo, SD

Average snowfall days in January - Revillo, SD
  • Average snowfall days in January: 13.1 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Revillo, SD

Average daylight in January / Average sunshine in January - Revillo, SD
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in January
Revillo, SD

Average sunshine days in January - Revillo, SD
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).

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Average UV index in January
Revillo, SD

Average UV index in January - Revillo, SD
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in January
Revillo, SD

Average cloud cover in January - Revillo, SD
  • Average cloud cover in January: 58

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).

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Average visibility in January
Revillo, SD

Average visibility in January - Revillo, 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).

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Revillo, South Dakota, USA

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