January weather forecast
Hill City, SD

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Weather in January

In Hill City, South Dakota, January brings with it the chill of winter, a season marked by snow-covered landscapes and frigid temperatures. Characterized by frosty mornings and chilly afternoons, January observes the coldest monthly temperatures of the year, with the thermometer reading dropping to as low as 17.1°F (-8.3°C), and at most reaching 31.1°F (-0.5°C). Going hand in hand with the freezing conditions is an average of 3.54" (90mm) of snowfall spread across 12.3 days. The heavy cloud cover would mean limited sunlight exposure with relative humidity levels reaching to a monthly average of 77%.

Temperature

Hill City experiences a subtle adjustment in high-temperatures to a still freezing cold 31.1°F (-0.5°C) with the onset of January, maintaining near parity with December's 29.8°F (-1.2°C). In the month of January, Hill City records a consistent average low-temperature of 17.1°F (-8.3°C).

Humidity

January and February, with an average relative humidity of 77%, are the most humid months.

Rainfall

The month with the least rainfall in Hill City, South Dakota, is January, when the rain falls for 6.2 days and typically collects 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In January, it is snowing for 12.3 days. Throughout January, 3.54" (90mm) of snow is accumulated. In Hill City, during the entire year, snow falls for 75.1 days and aggregates up to 40.24" (1022mm) of snow.

Daylight

In January, the average length of the day is 9h and 21min.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:26 pm. On the last day of January, in Hill City, sunrise is at 7:12 am and sunset at 5:02 pm MST.

Sunshine

In January, the average sunshine is 6.3h.

UV index

The months with the lowest UV index in Hill City are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 2 in January translates into this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January?

The average high-temperature and low-temperature during January are 31.1°F (-0.5°C) and 17.1°F (-8.3°C) respectively.

What are the most humid months?

January and February, with an average relative humidity of 77%, are most humid months.

What is the average humidity in January?

In Hill City, the average relative humidity in January is 77%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 6.2 days and typically collects 0.47" (12mm) of precipitation.

How much does it rain in January?

In Hill City, in January, it is raining for 6.2 days, with typically 0.47" (12mm) of accumulated precipitation.

How much does it snow in January?

In January, it is snowing for 12.3 days. Throughout January, 3.54" (90mm) of snow is accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 21min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:02 pm MST.

How many hours of sunshine does Hill City have in January?

In Hill City, South Dakota, the average sunshine duration in January is 6.3h.

What is the month with the lowest UV index?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index reading 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
29.8°F -1.2°C
31.1°F -0.5°C
31.5°F -0.3°C
Average low temperature
16.5°F -8.6°C
17.1°F -8.3°C
16.2°F -8.8°C
Average pressure
30.12" 765mmHg
30.13" 765mmHg
30.11" 765mmHg
Average wind speed
8.9mph 14.3km/h
9.2mph 14.8km/h
8.8mph 14.2km/h
Average max. wind speed
9.7mph 15.6km/h
10mph 16.1km/h
9.5mph 15.3km/h
Average wind speed gusts
16mph 25.7km/h
16.5mph 26.6km/h
14.8mph 23.8km/h
Average humidity
74%
77%
77%
Average rainfall
0.67" 17mm
0.47" 12mm
0.83" 21mm
Average rainfall days
6.3
6.2
6.3
Average snowfall
4.57" 116mm
3.54" 90mm
5.71" 145mm
Average snowfall days
11.5
12.3
12.9
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
6h 1min
6h 2min
6h 0min
Average sunshine days
18.1
17.4
13.8
Average UV index
2
2
2
Average cloud cover
34%
35%
37%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Hill City, SD

Average temperature in January - Hill City, SD
  • Average high temperature in January: 31.1°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (29.8°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

Average pressure in January
Hill City, SD

Average pressure in January - Hill City, SD
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in January
Hill City, SD

Average wind speed in January - Hill City, SD
  • Average wind speed in January: 9.2mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).

Average humidity in January
Hill City, SD

Average humidity in January - Hill City, SD
  • Average humidity in January: 77%

The months with the highest relative humidity are January and February (77%).
The months with the lowest relative humidity are August and September (52%).

Average rainfall in January
Hill City, SD

Average rainfall in January - Hill City, SD
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in January
Hill City, SD

Average rainfall days in January - Hill City, SD
  • Average rainfall days in January: 6.2 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (4.5 days).

Average snowfall in January
Hill City, SD

Average snowfall in January - Hill City, SD
  • Average snowfall in January: 3.54"

The month with the highest snowfall is April (7.24").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Hill City, SD

Average snowfall days in January - Hill City, SD
  • Average snowfall days in January: 12.3 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Hill City, SD

Average daylight in January / Average sunshine in January - Hill City, 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: 6h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

Average sunshine days in January
Hill City, SD

Average sunshine days in January - Hill City, SD
  • Average sunshine days in January: 17.4 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in January
Hill City, SD

Average UV index in January - Hill City, SD
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in January
Hill City, SD

Average cloud cover in January - Hill City, SD
  • Average cloud cover in January: 35

The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in January
Hill City, SD

Average visibility in January - Hill City, 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).

Hill City, South Dakota, USA

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