April weather forecast
Flandreau, SD

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Weather in April

April sees further escalation in temperature in Flandreau, marking the departure of winter. The weather, although changing, remains capricious with instances of both rain and remaining snow. It receives the most rainfall for the year, equating to 2.28" (58mm) amassed over the month. The increasing daylight hours and clear visibility prepare residents for the much-anticipated spring warmth and blooming landscapes.

Temperature

As April arrives, a rise in the average high-temperature is observed, moving from a cold 40.3°F (4.6°C) in March to a cool 53.6°F (12°C). In April, Flandreau reports a consistent average low-temperature of 37.2°F (2.9°C) during the nights.

Humidity

The average relative humidity in April is 70%.

Rainfall

In Flandreau, in April, during 12.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 113.8 rainfall days, and 20.59" (523mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In April, it is snowing for 3.5 days. Throughout April, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 53.1 snowfall days, and 20.04" (509mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 29min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:53 pm. On the last day of April, sunrise is at 6:17 am and sunset at 8:29 pm CDT.

Sunshine

The average sunshine in April is 7.8h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 3 in April suggests the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

In Flandreau, 53.6°F (12°C) is the average high-temperature and 37.2°F (2.9°C) is the average low-temperature during April.

What is the average humidity in April?

The average relative humidity in April is 70%.

How much does it rain in April?

In Flandreau, in April, it is raining for 12.6 days, with typically 2.28" (58mm) of accumulated precipitation.

How many days does it snow in April?

In Flandreau, in April, snow falls for 3.5 days, with typically accumulated 2.01" (51mm) of snow.

How many hours of daylight does Flandreau have in April?

In April, the average day length is 13h and 29min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 7:06 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:29 pm CDT.

How long on average sun shines in April?

In Flandreau, the average sunshine duration in April is 7.8h.

What is the UV index reading in April?

The average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Flandreau, SD

Average temperature in April - Flandreau, SD
  • Average high temperature in April: 53.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (21.6°F).

  • Average low temperature in April: 37.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).

Average pressure in April
Flandreau, SD

Average pressure in April - Flandreau, SD
  • Average pressure in April: 29.94"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in April
Flandreau, SD

Average wind speed in April - Flandreau, SD
  • Average wind speed in April: 11.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in April
Flandreau, SD

Average humidity in April - Flandreau, SD
  • Average humidity in April: 70%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).

Average rainfall in April
Flandreau, SD

Average rainfall in April - Flandreau, SD
  • Average rainfall in April: 2.28"

The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and November (0.63").

Average rainfall days in April
Flandreau, SD

Average rainfall days in April - Flandreau, SD
  • Average rainfall days in April: 12.6 days

The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (2.4 days).

Average snowfall in April
Flandreau, SD

Average snowfall in April - Flandreau, SD
  • Average snowfall in April: 2.01"

The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Flandreau, SD

Average snowfall days in April - Flandreau, SD
  • Average snowfall days in April: 3.5 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Flandreau, SD

Average daylight in April / Average sunshine in April - Flandreau, SD
  • Average daylight in April: 13h 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 April: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in April
Flandreau, SD

Average sunshine days in April - Flandreau, SD
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in April
Flandreau, SD

Average UV index in April - Flandreau, SD
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in April
Flandreau, SD

Average cloud cover in April - Flandreau, SD
  • Average cloud cover in April: 46

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in April
Flandreau, SD

Average visibility in April - Flandreau, SD
  • Average visibility in April: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Flandreau, South Dakota, USA

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