April weather forecast
Saint Onge, SD

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Weather in April

April in Saint Onge, South Dakota, is a cool spring month, with an average temperature varying between 33.4°F (0.8°C) and 51.4°F (10.8°C).

Temperature

With the onset of April, Saint Onge's weather sees a minor temperature rise, transitioning from a frosty 44.1°F (6.7°C) in March to a cool 51.4°F (10.8°C). Saint Onge's nighttime temperature during April is consistently averaged at a cold 33.4°F (0.8°C).

Humidity

In Saint Onge, the average relative humidity in April is 69%.

Rainfall

In Saint Onge, in April, during 12.1 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 99.6 rainfall days, and 15.63" (397mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. The month with the most snowfall in Saint Onge is April, when snow falls for 6 days and typically aggregates up to 7.36" (187mm) of snow.

Daylight

In April, the average length of the day is 13h and 31min.
On the first day of April, sunrise is at 6:34 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:58 pm MDT.

Sunshine

In Saint Onge, the average sunshine in April is 9.1h.

UV index

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 2 during April morphs into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

In Saint Onge, 51.4°F (10.8°C) is the average high-temperature and 33.4°F (0.8°C) is the average low-temperature during April.

What is the average humidity in April?

In April, the average relative humidity is 69%.

How much does it rain in April?

In April, the rain falls for 12.1 days. Throughout April, 2.01" (51mm) of precipitation is accumulated.

What is the snowiest month?

April is the month with the most snowfall. Snow falls for 6 days and accumulates 7.36" (187mm) of snow.

How many days does it snow in April?

In Saint Onge, during April, snow falls for 6 days and regularly aggregates up to 7.36" (187mm) of snow.

What is the average length of the day in April in Saint Onge?

The average day length in April is 13h and 31min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:34 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:58 pm MDT.

How long on average sun shines in April?

In April, the average sunshine duration in Saint Onge is 9.1h.

What are the months with the lowest UV index?

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

What is the UV index reading in April?

In Saint Onge, the average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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 April
Saint Onge, SD

Average temperature in April - Saint Onge, SD
  • Average high temperature in April: 51.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in April: 33.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

Average pressure in April
Saint Onge, SD

Average pressure in April - Saint Onge, SD
  • Average pressure in April: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in April
Saint Onge, SD

Average wind speed in April - Saint Onge, SD
  • Average wind speed in April: 9.7mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).

Average humidity in April
Saint Onge, SD

Average humidity in April - Saint Onge, SD
  • Average humidity in April: 69%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (49%).

Average rainfall in April
Saint Onge, SD

Average rainfall in April - Saint Onge, SD
  • Average rainfall in April: 2.01"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in April
Saint Onge, SD

Average rainfall days in April - Saint Onge, SD
  • Average rainfall days in April: 12.1 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in April
Saint Onge, SD

Average snowfall in April - Saint Onge, SD
  • Average snowfall in April: 7.36"

The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Saint Onge, SD

Average snowfall days in April - Saint Onge, SD
  • Average snowfall days in April: 6 days

The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in April /
Average sunshine in April
Saint Onge, SD

Average daylight in April / Average sunshine in April - Saint Onge, SD
  • Average daylight in April: 13h 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 April: 9h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in April
Saint Onge, SD

Average sunshine days in April - Saint Onge, SD
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in April
Saint Onge, SD

Average UV index in April - Saint Onge, SD
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).

Average cloud cover in April
Saint Onge, SD

Average cloud cover in April - Saint Onge, SD
  • Average cloud cover in April: 40

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in April
Saint Onge, SD

Average visibility in April - Saint Onge, SD
  • Average visibility in April: 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).

Saint Onge, South Dakota, USA

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