March weather forecast
Custer, SD

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Large, scenic rocks and trees around this tiny Sylvan Lake located in the tranquil Custer State Park in Custer City, South Dakota
Large, scenic rocks and trees around this tiny Sylvan Lake located in the tranquil Custer State Park in Custer City, South Dakota

Weather in March

March brings along weather changes as winter begins to fade away in Custer. The weather transition is more pronounced when compared to the still winter-clad February. It is this month when temperatures start rising above the freezing mark, transforming the snow-covered city into a landscape of melting snow and budding trees. Even though the shift is welcome, brisk winds and sudden cold snaps can still be potential oddities. Snowfall decreases substantially, allowing residents to happily anticipate the forthcoming pleasant spring atmosphere.

Temperature

March in Custer, South Dakota, sees a rise in the average high-temperature, climbing from a subzero cold 31.5°F (-0.3°C) in February to a frosty 43.9°F (6.6°C). Custer observes an average low-temperature of 26.4°F (-3.1°C) during March nights.

Humidity

In March, the average relative humidity in Custer is 70%.

Rainfall

In Custer, South Dakota, in March, during 9.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Custer, there are 135.4 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In March, it is snowing for 11.3 days. Throughout March, 6.97" (177mm) of snow is accumulated. Throughout the year, in Custer, South Dakota, there are 75.1 snowfall days, and 40.24" (1022mm) of snow is accumulated.

Daylight

In March, the average length of the day in Custer is 11h and 58min.
On the first day of March, sunrise is at 6:29 am and sunset at 5:43 pm MST. On the last day of the month, sunrise is at 6:36 am and sunset at 7:20 pm MDT.
Note: 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 lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from MDT to MST.

Sunshine

The average sunshine in March is 7.9h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in March suggests the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Custer in March?

During March, Custer experiences an average high-temperature of 43.9°F (6.6°C) and a low-temperature of 26.4°F (-3.1°C).

What is the average humidity in March in Custer?

The average relative humidity in March in Custer, South Dakota, is 70%.

How many days does it rain in March in Custer?

In Custer, South Dakota, during March, the rain falls for 9.3 days and regularly aggregates up to 1.34" (34mm) of precipitation.

How many days does it snow in March in Custer?

In Custer, South Dakota, in March, during 11.3 snowfall days, 6.97" (177mm) of snow is typically accumulated.

How many hours of daylight does Custer have in March?

In March, the average day length is 11h and 58min.

What time are sunrise and sunset in March in Custer?

On the first day of March in Custer, sunrise is at 6:29 am and sunset at 5:43 pm MST. On the last day of the month, sunrise is at 6:36 am and sunset at 7:20 pm MDT.

When does Daylight Saving Time (DST) start in March in Custer?

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

How many hours of sunshine does Custer have in March?

The average sunshine duration in March is 7.9h.

What is the month with the lowest UV index in Custer?

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 March in Custer?

In March, the average daily maximum UV index in Custer, South Dakota, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to 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 March
Custer, SD

Average temperature in March - Custer, SD
  • Average high temperature in March: 43.9°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 March: 26.4°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).

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Average pressure in March
Custer, SD

Average pressure in March - Custer, SD
  • Average pressure in March: 30"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).

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Average wind speed in March
Custer, SD

Average wind speed in March - Custer, SD
  • Average wind speed in March: 8.8mph

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).

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Average humidity in March
Custer, SD

Average humidity in March - Custer, SD
  • Average humidity in March: 70%

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

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Average rainfall in March
Custer, SD

Average rainfall in March - Custer, SD
  • Average rainfall in March: 1.34"

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

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Average rainfall days in March
Custer, SD

Average rainfall days in March - Custer, SD
  • Average rainfall days in March: 9.3 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).

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Average snowfall in March
Custer, SD

Average snowfall in March - Custer, SD
  • Average snowfall in March: 6.97"

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

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Average snowfall days in March
Custer, SD

Average snowfall days in March - Custer, SD
  • Average snowfall days in March: 11.3 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).

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Average daylight in March /
Average sunshine in March
Custer, SD

Average daylight in March / Average sunshine in March - Custer, SD
  • Average daylight in March: 12h and 0min

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 March: 7h and 5min

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).

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Average sunshine days in March
Custer, SD

Average sunshine days in March - Custer, SD
  • Average sunshine days in March: 13.3 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).

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Average UV index in March
Custer, SD

Average UV index in March - Custer, SD
  • Average UV index in March: 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).

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Average cloud cover in March
Custer, SD

Average cloud cover in March - Custer, SD
  • Average cloud cover in March: 36

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

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Average visibility in March
Custer, SD

Average visibility in March - Custer, SD
  • Average visibility in March: 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).

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Custer, South Dakota, USA

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