January weather forecast
Buffalo, SD

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Weather in January

January, the same as December, in Buffalo, South Dakota, is another subzero cold winter month, with an average temperature fluctuating between 14.4°F (-9.8°C) and 27.3°F (-2.6°C).

Temperature

January brings the lowest temperatures, with an average high of 27.3°F (-2.6°C) and an average low of 14.4°F (-9.8°C).

Humidity

January is the most humid month, with an average relative humidity of 82%.

Rainfall

January and November are months with the least rain in Buffalo when the rain falls for 3.3 days and typically aggregates up to 0.51" (13mm) of rain.

Snowfall

January through May, October through December are months with snowfall. In Buffalo, in January, during 11.9 snowfall days, 2.87" (73mm) of snow is typically accumulated. Throughout the year, there are 62.2 snowfall days, and 22.95" (583mm) of snow is accumulated.

Daylight

In Buffalo, the average length of the day in January is 9h and 11min.
On the first day of January, sunrise is at 7:34 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:58 pm MST.

Sunshine

The months with the least sunshine are January and February, with an average of 5h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 2 translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Buffalo?

Buffalo's coldest weather arrives in January, when temperatures average a high of 27.3°F (-2.6°C) and a low of 14.4°F (-9.8°C).

How cold is January in Buffalo?

In January, the average high-temperature and low-temperature are 27.3°F (-2.6°C) and 14.4°F (-9.8°C) respectively.

What is the most humid month?

With an average relative humidity of 82%, January is the most humid month.

What is the average humidity in January?

In Buffalo, the average relative humidity in January is 82%.

What is the driest month?

January and November are months with the least rain in Buffalo when the rain falls for 3.3 days and typically aggregates up to 0.51" (13mm) of rain.

How much does it rain in January?

In January, in Buffalo, South Dakota, the rain falls for 3.3 days. Throughout January, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in January?

In January, it is snowing for 11.9 days. Throughout January, 2.87" (73mm) of snow is accumulated.

What is the average length of the day in January?

In Buffalo, the average day length in January is 9h and 11min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:34 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:58 pm MST.

What are the months with the least sunshine?

January and February, with an average of 5h of sunshine, are months with the least sunshine.

How many hours of sunshine does Buffalo have in January?

In January, the average sunshine duration is 5h.

How high is the UV index in January?

In January, the average daily maximum UV index in Buffalo is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Buffalo, SD

Average temperature in January - Buffalo, SD
  • Average high temperature in January: 27.3°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in January: 14.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in January
Buffalo, SD

Average pressure in January - Buffalo, 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 (29.84"Hg).

Average wind speed in January
Buffalo, SD

Average wind speed in January - Buffalo, SD
  • Average wind speed in January: 11.9mph

The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).

Average humidity in January
Buffalo, SD

Average humidity in January - Buffalo, SD
  • Average humidity in January: 82%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).

Average rainfall in January
Buffalo, SD

Average rainfall in January - Buffalo, SD
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").

Average rainfall days in January
Buffalo, SD

Average rainfall days in January - Buffalo, SD
  • Average rainfall days in January: 3.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in January
Buffalo, SD

Average snowfall in January - Buffalo, SD
  • Average snowfall in January: 2.87"

The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Buffalo, SD

Average snowfall days in January - Buffalo, SD
  • Average snowfall days in January: 11.9 days

The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Buffalo, 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: 5h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

Average sunshine days in January
Buffalo, SD

Average sunshine days in January - Buffalo, SD
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).

Average UV index in January
Buffalo, SD

Average UV index in January - Buffalo, 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 February and December (UV index 1).

Average cloud cover in January
Buffalo, SD

Average cloud cover in January - Buffalo, SD
  • Average cloud cover in January: 48

The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).

Average visibility in January
Buffalo, SD

Average visibility in January - Buffalo, 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).

Buffalo, South Dakota, USA

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