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

Custer in March experiences an increase in the average high-temperature, moving from February's freezing cold 31.5°F to a frosty 43.9°F. The temperature lowers to an average of 26.4°F during March nights.

Humidity

The average relative humidity in March in Custer is 70%.

Rainfall

In Custer, South Dakota, in March, it is raining for 9.3 days, with typically 1.34" of accumulated precipitation. In Custer, South Dakota, during the entire year, the rain falls for 135.4 days and collects up to 20.39" of precipitation.

Snowfall

January through May, September through December are months with snowfall in Custer. In Custer, in March, during 11.3 snowfall days, 6.97" of snow is typically accumulated. Throughout the year, there are 75.1 snowfall days, and 40.24" of snow is accumulated.

Daylight

In Custer, South Dakota, the average length of the day in March is 11h and 58min.
On the first day of March, sunrise is at 6:30 am and sunset at 5:42 pm MST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:19 pm MDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time lasts until Sunday, November 5. 2023, 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: The daily high UV index of 2 during March translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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FAQ

How cold does it get in Custer in March?

In Custer, in March, the average high-temperature is 43.9°F, and the average low-temperature is 26.4°F.

What is the average humidity in March in Custer?

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

How much does it rain in Custer in March?

In Custer, in March, during 9.3 rainfall days, 1.34" of precipitation is typically accumulated.

How much does it snow in Custer in March?

In Custer, during March, snow falls for 11.3 days and regularly aggregates up to 6.97" of snow.

What is the average length of the day in March in Custer?

The average day length in March in Custer is 11h and 58min.

What time are sunrise and sunset in March in Custer?

In March, on the first day of the month, sunrise is at 6:30 am and sunset at 5:42 pm MST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:19 pm MDT.

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

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Custer, South Dakota, and the time zone changes from MST to MDT. DST ends Sunday, November 5. 2023, at 2:00 am.

How long on average sun shines in March in Custer?

In March, the average sunshine duration in Custer is 7.9h.

When is 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 intensity in March in Custer?

In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
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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