January weather forecast
Brentford, SD

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Weather in January

January, the same as December, in Brentford, South Dakota, is another subzero cold winter month, with an average temperature varying between 6.3°F (-14.3°C) and 20.7°F (-6.3°C).

Temperature

Temperature readings reach their annual highs in January, averaging 20.7°F (-6.3°C) and a minimum average of 6.3°F (-14.3°C).

Humidity

The most humid month is January, with an average relative humidity of 88%.

Rainfall

The month with the least rainfall is January, when the rain falls for 3 days and typically collects 0.59" (15mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.

Daylight

In Brentford, South Dakota, the average length of the day in January is 9h and 13min.
On the first day of the month, sunrise is at 8:12 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:54 am and sunset at 5:38 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January, February and November, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Brentford experiences its average lowest temperatures in January, reaching a peak of 20.7°F (-6.3°C) and a minimum of 6.3°F (-14.3°C).

How cold is it in January?

In Brentford, in January, the average high-temperature is 20.7°F (-6.3°C), and the average low-temperature is 6.3°F (-14.3°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 88%.

What is the average humidity in January?

In Brentford, the average relative humidity in January is 88%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Brentford in January?

In Brentford, during January, the rain falls for 3 days and regularly aggregates up to 0.59" (15mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.

How many days does it snow in January?

In Brentford, during January, snow falls for 13 days and regularly aggregates up to 3.82" (97mm) of snow.

How many hours of daylight does Brentford have in January?

The average day length in January is 9h and 13min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 8:12 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:38 pm CST.

What is the month with the least sunshine?

With an average of 3.9h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

In Brentford, the average sunshine duration in January is 3.9h.

What is the month with the lowest UV index?

The months with the lowest UV index in Brentford are January, February and November, with an average maximum UV index of 1.

What is the UV index intensity in January?

In Brentford, the average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Brentford, SD

Average temperature in January - Brentford, SD
  • Average high temperature in January: 20.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in January: 6.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in January
Brentford, SD

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

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in January
Brentford, SD

Average wind speed in January - Brentford, SD
  • Average wind speed in January: 9.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in January
Brentford, SD

Average humidity in January - Brentford, SD
  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

Average rainfall in January
Brentford, SD

Average rainfall in January - Brentford, SD
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in January
Brentford, SD

Average rainfall days in January - Brentford, SD
  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

Average snowfall in January
Brentford, SD

Average snowfall in January - Brentford, SD
  • Average snowfall in January: 3.82"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Brentford, SD

Average snowfall days in January - Brentford, SD
  • Average snowfall days in January: 13 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Brentford, 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: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Brentford, SD

Average sunshine days in January - Brentford, SD
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in January
Brentford, SD

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

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 and November (UV index 1).

Average cloud cover in January
Brentford, SD

Average cloud cover in January - Brentford, SD
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in January
Brentford, SD

Average visibility in January - Brentford, 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).

Brentford, South Dakota, USA

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