February 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 February

February not just follows January regarding winter weather, it also brings a slight increase in both snowfall and winter temperature levels. Compared to the 3.54" of snowfall in January, February sees a surge to 5.71". However, the real change happens from February to March with a noticeable shift from winter to spring. Shorter periods of snowfall also hint towards the approaching warmer season. It's a month of transformation with increasingly longer daily sunlight duration, signaling that spring is not far away.

Temperature

The commencement of February notes an average high-temperature of a still subzero cold 31.5°F, exhibiting little difference from the previous month. During February, Custer records an average temperature of 16.2°F at night.

Humidity

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

Rainfall

In Custer, in February, it is raining for 6.3 days, with typically 0.83" of accumulated precipitation. In Custer, 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 February, it is snowing for 12.9 days. Throughout February, 5.71" of snow is accumulated. In Custer, during the entire year, snow falls for 75.1 days and aggregates up to 40.24" of snow.

Daylight

The average length of the day in February in Custer is 10h and 31min.
On the first day of February in Custer, sunrise is at 7:10 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 5:41 pm MST.

Sunshine

February has the least sunshine of the year in Custer, with an average of 6h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 2 during February morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is February in Custer?

In Custer, 31.5°F is the average high-temperature and 16.2°F is the average low-temperature during February.

What is the most humid month in Custer?

The months with the highest humidity in Custer, South Dakota, are January and February, with an average relative humidity of 77%.

What is the average humidity in February in Custer?

In February, the average relative humidity in Custer is 77%.

How much does it rain in Custer in February?

In Custer, South Dakota, in February, during 6.3 rainfall days, 0.83" of precipitation is typically accumulated.

How much does it snow in Custer in February?

In Custer, in February, during 12.9 snowfall days, 5.71" of snow is typically accumulated.

How many hours of daylight does Custer have in February?

The average day length in February is 10h and 31min.

When are sunrise and sunset in February in Custer?

In February, on the first day of the month, sunrise is at 7:10 am and sunset at 5:04 pm. On the last day of the month, in Custer, South Dakota, sunrise is at 6:32 am and sunset at 5:41 pm MST.

What is the month with the least sunshine in Custer?

With an average of 6h of sunshine, February has the least sunshine of the year in Custer, South Dakota.

How long on average sun shines in February in Custer?

In February, the average sunshine duration in Custer is 6h.

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 February in Custer?

In Custer, South Dakota, the average daily maximum UV index in February is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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 February
Custer, SD

Average temperature in February - Custer, SD
  • Average high temperature in February: 31.5°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 February: 16.2°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 February
Custer, SD

Average pressure in February - Custer, SD
  • Average pressure in February: 30.11"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 February
Custer, SD

Average wind speed in February - Custer, SD
  • Average wind speed in February: 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 February
Custer, SD

Average humidity in February - Custer, SD
  • Average humidity in February: 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%).

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Average rainfall in February
Custer, SD

Average rainfall in February - Custer, SD
  • Average rainfall in February: 0.83"

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 February
Custer, SD

Average rainfall days in February - Custer, SD
  • Average rainfall days in February: 6.3 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 February
Custer, SD

Average snowfall in February - Custer, SD
  • Average snowfall in February: 5.71"

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 February
Custer, SD

Average snowfall days in February - Custer, SD
  • Average snowfall days in February: 12.9 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 February /
Average sunshine in February
Custer, SD

Average daylight in February / Average sunshine in February - Custer, SD
  • Average daylight in February: 10h and 3min

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 February: 6h 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).

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Average sunshine days in February
Custer, SD

Average sunshine days in February - Custer, SD
  • Average sunshine days in February: 13.8 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 February
Custer, SD

Average UV index in February - Custer, SD
  • Average UV index in February: 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 February
Custer, SD

Average cloud cover in February - Custer, SD
  • Average cloud cover in February: 37

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 February
Custer, SD

Average visibility in February - Custer, SD
  • Average visibility in February: 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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