April weather forecast
McCook Lake, SD

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Weather in April

April in McCook Lake, South Dakota, is a mild spring month, with an average temperature varying between 58.6°F (14.8°C) and 40.8°F (4.9°C).

Temperature

April's arrival brings a change in high-temperatures, moving from a frosty 46.6°F (8.1°C) in March to a mild 58.6°F (14.8°C). During April, McCook Lake experiences an average low-temperature of 40.8°F (4.9°C) at night.

Humidity

In McCook Lake, South Dakota, the average relative humidity in April is 67%.

Rainfall

In April, in McCook Lake, the rain falls for 13.3 days. Throughout April, 2.56" (65mm) of precipitation is accumulated. Throughout the year, in McCook Lake, South Dakota, there are 122 rainfall days, and 21.61" (549mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In McCook Lake, South Dakota, during April, snow falls for 2.1 days and regularly aggregates up to 1.61" (41mm) of snow. In McCook Lake, during the entire year, snow falls for 38 days and aggregates up to 13.23" (336mm) of snow.

Daylight

In April, the average length of the day in McCook Lake, South Dakota, is 13h and 25min.
On the first day of April, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:25 pm CDT.

Sunshine

In April, the average sunshine is 8.1h.

UV index

In McCook Lake, the average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 4 during April, leads to the following recommendations:
Be vigilant - Preventing sunburn is recommended. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are the temperatures in McCook Lake in April?

April temperatures in McCook Lake, South Dakota, vary between a high-temperature of 58.6°F (14.8°C) and a low-temperature of 40.8°F (4.9°C).

What is the average humidity in April in McCook Lake?

In McCook Lake, the average relative humidity in April is 67%.

How much does it rain in McCook Lake in April?

In April, in McCook Lake, the rain falls for 13.3 days. Throughout April, 2.56" (65mm) of precipitation is accumulated.

How much does it snow in McCook Lake in April?

In McCook Lake, South Dakota, in April, snow falls for 2.1 days, with typically accumulated 1.61" (41mm) of snow.

What is the average length of the day in April in McCook Lake?

In April, the average day length is 13h and 25min.

What time are sunrise and sunset in April in McCook Lake?

In April, on the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:25 pm CDT.

How long on average sun shines in April in McCook Lake?

In April, the average sunshine duration in McCook Lake is 8.1h.

How high is the UV index in April in McCook Lake?

In McCook Lake, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate 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
McCook Lake, SD

Average temperature in April - McCook Lake, SD
  • Average high temperature in April: 58.6°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in April: 40.8°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

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Average pressure in April
McCook Lake, SD

Average pressure in April - McCook Lake, SD
  • Average pressure in April: 29.93"Hg

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

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Average wind speed in April
McCook Lake, SD

Average wind speed in April - McCook Lake, SD
  • Average wind speed in April: 11.1mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in April
McCook Lake, SD

Average humidity in April - McCook Lake, SD
  • Average humidity in April: 67%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).

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Average rainfall in April
McCook Lake, SD

Average rainfall in April - McCook Lake, SD
  • Average rainfall in April: 2.56"

The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in April
McCook Lake, SD

Average rainfall days in April - McCook Lake, SD
  • Average rainfall days in April: 13.3 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in April
McCook Lake, SD

Average snowfall in April - McCook Lake, SD
  • Average snowfall in April: 1.61"

The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
McCook Lake, SD

Average snowfall days in April - McCook Lake, SD
  • Average snowfall days in April: 2.1 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
McCook Lake, SD

Average daylight in April / Average sunshine in April - McCook Lake, SD
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in April
McCook Lake, SD

Average sunshine days in April - McCook Lake, SD
  • Average sunshine days in April: 13.6 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in April
McCook Lake, SD

Average UV index in April - McCook Lake, SD
  • Average UV index in April: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in April
McCook Lake, SD

Average cloud cover in April - McCook Lake, SD
  • Average cloud cover in April: 43

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in April
McCook Lake, SD

Average visibility in April - McCook Lake, 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).

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McCook Lake, South Dakota, USA

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