February weather forecastCuster, SD

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

February

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" (90mm) of snowfall in January, February sees a surge to 5.71" (145mm). 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 in Custer, South Dakota, introduces an average high-temperature of a still subzero cold 31.5°F (-0.3°C), closely mirroring the preceding month. In Custer, February nights cool down to an average of 16.2°F (-8.8°C).

Humidity

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

Rainfall

In February, the rain falls for 6.3 days. Throughout February, 0.83" (21mm) of precipitation is accumulated. In Custer, South Dakota, during the entire year, the rain falls for 135.4 days and collects up to 20.39" (518mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Custer, in February, snow falls for 12.9 days, with typically accumulated 5.71" (145mm) of snow. Throughout the year, in Custer, there are 75.1 snowfall days, and 40.24" (1022mm) of snow is accumulated.

Daylight

In Custer, the average length of the day in February is 10h and 31min.
On the first day of February, sunrise is at 7:11 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 5:42 pm MST.

Sunshine

The month with the least sunshine in Custer is February, 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 reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In February, the maximum UV index of 2 suggests these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Custer during February are 31.5°F (-0.3°C) and 16.2°F (-8.8°C) respectively.

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

The average relative humidity in February in Custer is 77%.

In Custer, in February, during 6.3 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

In Custer, South Dakota, during February, snow falls for 12.9 days and regularly aggregates up to 5.71" (145mm) of snow.

In Custer, the average day length in February is 10h and 31min.

On the first day of February in Custer, sunrise is at 7:11 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 5:42 pm MST.

The month with the least sunshine in Custer, South Dakota, is February, with an average of 6h of sunshine.

The average sunshine duration in February is 6h.

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

The average daily maximum UV index in February in Custer is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J February M A M J J A S O N D

Jan

February

Mar

Average high temperature

31.1°F

31.5°F

43.9°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10mph

9.5mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

17.4

13.8

13.3

Average UV index

Average cloud cover

Average visibility

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).

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).

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).

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%).

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").

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).

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").

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).

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

Average daylight in February: 10h and 30min

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).

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).

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).

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).

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).