Climate and monthly weather forecast
Hill City, SD

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The climate of Hill City

Located in South Dakota, USA, Hill City experiences a Dfb climate according to the Köppen climate classification. This climate type means that it is a humid continental locality with no dry season but acquires warm summers.

Observed throughout the year, Hill City's climatological parameters prove to be diverse. High temperatures range from 29.8°F (-1.2°C) in December to the peak of 81.7°F (27.6°C) in July. Mainwhile, low temperatures reach their lowest at 16.5°F (-8.6°C) in December and rise to 60.4°F (15.8°C) during July. Relative humidity notably descends from January's 77% to a 52% low between July and September. Rainfall jumps its minimum of 0.47" (12mm) in January to 3.19" (81mm) in June, with rainfall days peaking at 18.6 days in May.

Snowfall in Hill City is another noteworthy climate feature - it accumulates from 0" (0mm) between June and September, up to 7.24" (184mm) in April. The highest snowfall days are encountered in February, with 12.9 days. Meanwhile, daylight hours increase from 9 hours in December and January to 15.4 hours in June. Sunshine hours follow a similar trend, elevating from 6.2 hours in December to 11.7 hours in August. This illumination plays out over an increased number of sunshine days from 7.8 days in May to 19.2 days in November.

The best time to visit Hill City

For visitors inclined to bask in the most favorable weather conditions, the best time to tour Hill City would be between June and September. Highest average temperatures during these months range from 71.4°F (21.9°C) to 81.7°F (27.6°C), offering plenty of warm sunny days for outdoor activities. Relative humidity stays at the lower end of the scale between 52% and 60%, complementing the enjoyable temperatures. Rainfall is also less severe during this period, tapering off to 1.22" (31mm) by September.

The worst time to visit Hill City

Based on the climate data, the least desirable time to visit Hill City would be between December and February. With high temperatures fluctuating from 29.8°F (-1.2°C) to 31.5°F (-0.3°C) and lows plunging to 16.5°F (-8.6°C) in December, the city can be uncomfortably cold for travelers not used to such frigid temperatures. Snowfall during these months rises to as high as 5.71" (145mm) in February, potentially resulting in tricky travel conditions.

Spring weather in Hill City

Spring in Hill City, from March to May, witnesses a gradual increase in temperatures. Highs rise from 43.9°F (6.6°C) to 61°F (16.1°C), while lows elevate from 26.4°F (-3.1°C) to 42.4°F (5.8°C). Rainfall also increases over the season, with May observing the heaviest average precipitation at 3.11" (79mm). Corresponding rainfall days climb to a peak of 18.6 days, indicating fairly consistent rainfall through the spring months. These months also see a decline in snowfall, dropping from 6.97" (177mm) in March to just 4.09" (104mm) in May.

Summer weather in Hill City

From June through August, Hill City experiences the warmest temperatures. Highs escalate from 74.1°F (23.4°C) in June to reach an annual apex of 81.7°F (27.6°C) in July. Correspondingly, the lowest temperatures ascend from 53.2°F (11.8°C) to 60.4°F (15.8°C). Despite the hot temperatures, relative humidity decreases to a year-round base of 52% in July and August. Moreover, rainfall decreases after June's cap of 3.19" (81mm) to 2.56" (65mm) by August.

Autumn weather in Hill City

Autumn months, from September to November, witness Hill City's temperatures plunge from 71.4°F (21.9°C) to 42.3°F (5.7°C) for the highest and from 51.1°F (10.6°C) to 25.9°F (-3.4°C) for the lowest. Rainfall declines to 0.63" (16mm) by November, marking autumn as the second driest period of the year. Snowfall begins to occur again in November, with the metropolitan area observing an average of 4.09" (104mm).

Winter weather in Hill City

In the winter months, from December to February, Hill City becomes notably colder with maximum temperatures degrading from 42.3°F (5.7°C) to 29.8°F (-1.2°C). Minimum temperatures drop simultaneously from 25.9°F (-3.4°C) to 16.5°F (-8.6°C), making it the coldest period of the year. This season also sees an uptick in snowfall, peaking at 5.71" (145mm) in February. The number of days with snowfall maximizes at 12.9 days in February, underlining the substantial snow presence during winter.

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). Weather in January »

Weather in February

With the onset of February, Hill City witnesses growing daylight hours and higher humidity levels, albeit the lingering winter chill persists. Not differing considerably from January in terms of temperature, February nonetheless records a noteworthy 5.71" (145mm) of snowfall. Weather in February »

Weather in March

March ushers in transitional weather in Hill City, South Dakota; moving from freezing conditions to signals of an impending spring. The month marks a considerable yearly peak in snowfall with 6.97" (177mm) recorded on the ground, though snowfall days reduce to 11.3. Weather in March »

Weather in April

Witness to transformative weather conditions, April in Hill City sees the definite arrival of spring. The most distinguishing characteristic of this month is the significant escalation of rainfall to 2.32" (59mm). The temperature starts to climb, leaving behind the sub-freezing conditions of the winter months. Weather in April »

Weather in May

As Hill City enters the month of May, there are clear indications of the warmer months ahead. Anyone venturing outdoors would find a stark shift from the wet conditions of April, with the most significant monthly rainfall of the year measuring at 3.11" (79mm). Weather in May »

Weather in June

June in Hill City brings with it the arrival of summer, characterized by longer days, warmer temperatures, and ample sunshine. Interestingly, this month yields the second highest rainfall of the year measuring up to 3.19" (81mm). Notwithstanding such precipitations, the cloud cover decreases, leading to expansive azure skies. Weather in June »

Weather in July

The month of July stands as the quintessential summer month in Hill City in terms of temperature, with the mercury rising to a peak of 81.7°F (27.6°C). Coupled with the mounting heat is the lowest humidity of the year, which hovers around 54%. Weather in July »

Weather in August

August witnesses the continuation of the summer season in Hill City, playing host to warm afternoons and soothing breezy evenings. Although August registers a slight dip in temperature from July, the weather remains largely clear and dry, with only 2.56" (65mm) of rainfall recorded. Weather in August »

Weather in September

In Hill City, there is a noticeable shift in the atmospheric conditions as September arrives, marking the onset of autumn. In comparison to the summer months of July and August, the amount of rainfall reduces significantly to 1.22" (31mm). Weather in September »

Weather in October

October in Hill City is centered on the all-encompassing change in weather pattern. The precipitation levels continue to show a declining trend from previous months, with recorded rainfall of 1.14" (29mm). As the month progresses, the foliage sets the cityscape ablaze with vivid fall colors, a sight made even more dramatic against the backdrop of increasingly cloudy skies. Weather in October »

Weather in November

November ushers in a colder time of the year in Hill City with frosty mornings and a markedly lower temperature. Signifying the approach of winter, the month showcases a relatively smaller amount of precipitation with 0.63" (16mm) of rainfall recorded. Weather in November »

Weather in December

Experiencing the height of winter, December in Hill City, South Dakota is characterized by snow-covered landscapes and sub-zero temperatures. A significant detail of this month is the 4.57" (116mm) of snow that marks the cityscape. Weather in December »
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the most humid months?

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

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?

Throughout the year, there are 135.4 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, September through December.

How much does it snow?

In Hill City, during the entire year, snow falls for 75.1 days and aggregates up to 40.24" (1022mm) of snow.

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 month with the least sunshine?

The month with the least sunshine is February, with an average of 6h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

When does it snow the most?

April is the month with the most snowfall. Snow falls for 8.8 days and accumulates 7.24" (184mm) of snow.

What is the rainiest month in Hill City?

The month with the most rainfall is June, when the rain falls for 18 days and typically aggregates up to 3.19" (81mm) of precipitation.

When it does not snow?

In Hill City, snow does not fall in June through August.

When are the longest days?

June has the longest days of the year, with an average of 15h and 24min of daylight.

What is the warmest month?

July is the warmest month, exhibiting average temperatures of 81.7°F (27.6°C) at the peak and 60.4°F (15.8°C) at the base.

When is the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the least humid month?

The months with the lowest humidity are August and September, with an average relative humidity of 52%.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.7h of sunshine.

What are the coldest months?

The month of December, characterized by an average high of 29.8°F (-1.2°C) and a low of 16.5°F (-8.6°C), is recognized as the coldest.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

Average temperature
Hill City, SD

Average temperature - Hill City, SD

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).

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
Hill City, SD

Average pressure - Hill City, SD

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
Hill City, SD

Average wind speed - Hill City, SD

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
Hill City, SD

Average humidity - Hill City, SD

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
Hill City, SD

Average rainfall - Hill City, SD

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
Hill City, SD

Average rainfall days - Hill City, SD

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
Hill City, SD

Average snowfall - Hill City, SD

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
Hill City, SD

Average snowfall days - Hill City, SD

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 / Average sunshine
Hill City, SD

Average daylight / Average sunshine - Hill City, SD

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).

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
Hill City, SD

Average sunshine days - Hill City, SD

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
Hill City, SD

Average UV index - Hill City, SD

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 visibility
Hill City, SD

Average visibility - Hill City, SD

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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