February weather forecast
Opal, SD

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Weather in February

February, the last month of the winter in Opal, is also a subzero cold month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 15.8°F (-9°C).

Temperature

In Opal, February's average high-temperature stands at a still subzero cold 29.1°F (-1.6°C), closely related to the preceding month. Nighttime temperature dips to a mean of 15.8°F (-9°C) during February.

Humidity

The average relative humidity in February in Opal is 78%.

Rainfall

In February, in Opal, the rain falls for 3.3 days. Throughout February, 0.79" (20mm) of precipitation is accumulated. In Opal, during the entire year, the rain falls for 99.7 days and collects up to 16.06" (408mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. February is the month with the most snowfall. Snow falls for 12.2 days and accumulates 5.12" (130mm) of snow.

Daylight

The average length of the day in February in Opal is 10h and 27min.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:57 pm. On the last day of February, in Opal, sunrise is at 6:27 am and sunset at 5:36 pm MST.

Sunshine

The average sunshine in February in Opal is 4.9h.

UV index

The months with the lowest UV index in Opal are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in February interprets into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Opal in February?

In February, the average high-temperature and low-temperature in Opal, South Dakota, are 29.1°F (-1.6°C) and 15.8°F (-9°C) respectively.

What is the average humidity in February in Opal?

The average relative humidity in February is 78%.

How many days does it rain in February in Opal?

In Opal, South Dakota, in February, during 3.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

When does it snow the most in Opal?

The month with the most snowfall in Opal is February, when snow falls for 12.2 days and typically aggregates up to 5.12" (130mm) of snow.

How many days does it snow in February in Opal?

In Opal, during February, snow falls for 12.2 days and regularly aggregates up to 5.12" (130mm) of snow.

How many hours of daylight does Opal have in February?

In Opal, South Dakota, the average day length in February is 10h and 27min.

When are sunrise and sunset in February in Opal?

On the first day of February in Opal, South Dakota, sunrise is at 7:09 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 5:36 pm MST.

How many hours of sunshine does Opal have in February?

In Opal, South Dakota, the average sunshine duration in February is 4.9h.

What are the months with the lowest UV index in Opal?

The months with the lowest UV index in Opal, South Dakota, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in February in Opal?

The average daily maximum UV index in February in Opal is 2. A UV Index value of 2, and less, symbolizes 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 February
Opal, SD

Average temperature in February - Opal, SD
  • Average high temperature in February: 29.1°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in February: 15.8°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure in February
Opal, SD

Average pressure in February - Opal, SD
  • Average pressure in February: 30.15"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in February
Opal, SD

Average wind speed in February - Opal, SD
  • Average wind speed in February: 10.4mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).

Average humidity in February
Opal, SD

Average humidity in February - Opal, SD
  • Average humidity in February: 78%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).

Average rainfall in February
Opal, SD

Average rainfall in February - Opal, SD
  • Average rainfall in February: 0.79"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in February
Opal, SD

Average rainfall days in February - Opal, SD
  • Average rainfall days in February: 3.3 days

The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).

Average snowfall in February
Opal, SD

Average snowfall in February - Opal, SD
  • Average snowfall in February: 5.12"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in February
Opal, SD

Average snowfall days in February - Opal, SD
  • Average snowfall days in February: 12.2 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in February: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in February
Opal, SD

Average sunshine days in February - Opal, SD
  • Average sunshine days in February: 15.2 days

The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).

Average UV index in February
Opal, SD

Average UV index in February - Opal, SD
  • Average UV index in February: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in February
Opal, SD

Average cloud cover in February - Opal, SD
  • Average cloud cover in February: 48

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

Average visibility in February
Opal, SD

Average visibility in February - Opal, 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).

Opal, South Dakota, USA

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