January weather forecast
Hamill, SD

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Weather in January

January, like December, is a freezing cold winter month in Hamill, South Dakota, with an average temperature ranging between max 28.8°F (-1.8°C) and min 15.6°F (-9.1°C).

Temperature

January is the coldest month of the year, registering average temperatures as high as 28.8°F (-1.8°C) and as low as 15.6°F (-9.1°C).

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Hamill, in January, during 9.6 snowfall days, 2.64" (67mm) of snow is typically accumulated. In Hamill, during the entire year, snow falls for 39.7 days and aggregates up to 14.45" (367mm) of snow.

Daylight

In January, the average length of the day is 9h and 23min.
On the first day of the month, sunrise is at 8:11 am and sunset at 5:12 pm. On the last day of January, sunrise is at 7:56 am and sunset at 5:47 pm CST.

Sunshine

January has the least sunshine of the year in Hamill, with an average of 4.9h of sunshine.

UV index

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Hamill's temperature records reveal January as the coldest month, marked by average highs of 28.8°F (-1.8°C) and lows of 15.6°F (-9.1°C).

How cold is January?

January temperatures vary between a high-temperature of 28.8°F (-1.8°C) and a low-temperature of 15.6°F (-9.1°C).

What is the most humid month?

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

What is the average humidity in January in Hamill?

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

What is the driest month?

The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in January?

In Hamill, in January, during 2.7 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

How many days does it snow in January?

In January, it is snowing for 9.6 days. Throughout January, 2.64" (67mm) of snow is accumulated.

How many hours of daylight does Hamill have in January?

The average day length in January is 9h and 23min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 8:11 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:47 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.9h of sunshine.

How long on average sun shines in January?

In Hamill, the average sunshine duration in January is 4.9h.

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
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
Hamill, SD

Average temperature in January - Hamill, SD
  • Average high temperature in January: 28.8°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in January: 15.6°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in January
Hamill, SD

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in January
Hamill, SD

Average wind speed in January - Hamill, SD
  • Average wind speed in January: 11.1mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

Average humidity in January
Hamill, SD

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

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

Average rainfall in January
Hamill, SD

Average rainfall in January - Hamill, SD
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in January
Hamill, SD

Average rainfall days in January - Hamill, SD
  • Average rainfall days in January: 2.7 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

Average snowfall in January
Hamill, SD

Average snowfall in January - Hamill, SD
  • Average snowfall in January: 2.64"

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Hamill, SD

Average snowfall days in January - Hamill, SD
  • Average snowfall days in January: 9.6 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days in January
Hamill, SD

Average sunshine days in January - Hamill, SD
  • Average sunshine days in January: 19.7 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in January
Hamill, SD

Average UV index in January - Hamill, SD
  • Average UV index in January: 2

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

Average cloud cover in January
Hamill, SD

Average cloud cover in January - Hamill, SD
  • Average cloud cover in January: 47

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in January
Hamill, SD

Average visibility in January - Hamill, 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).

Hamill, South Dakota, USA

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