April weather forecast
Martin, SD

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Weather in April

April is a moderate spring month in Martin, South Dakota, with an average temperature varying between 37.4°F (3°C) and 55.4°F (13°C).

Temperature

As April arrives, a slight rise in the average high-temperature is observed, moving from a frosty 47.8°F (8.8°C) in March to a mild 55.4°F (13°C). Throughout the month of April, Martin reports a steady low-temperature average of 37.4°F (3°C).

Humidity

In Martin, the average relative humidity in April is 62%.

Rainfall

In April, the rain falls for 11.9 days. Throughout April, 1.69" (43mm) of precipitation is accumulated. In Martin, during the entire year, the rain falls for 108 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Martin, in April, during 3.8 snowfall days, 1.97" (50mm) of snow is typically accumulated. In Martin, during the entire year, snow falls for 47.3 days and aggregates up to 19.76" (502mm) of snow.

Daylight

In Martin, the average length of the day in April is 13h and 26min.
On the first day of April, sunrise is at 6:27 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:47 pm MDT.

Sunshine

In Martin, the average sunshine in April is 9.4h.

UV index

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 during April leads to these advisories:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

In Martin, in April, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 37.4°F (3°C).

What is the average humidity in April?

In April, the average relative humidity is 62%.

How many days does it rain in April?

In Martin, South Dakota, during April, the rain falls for 11.9 days and regularly aggregates up to 1.69" (43mm) of precipitation.

How much does it snow in April?

In Martin, in April, during 3.8 snowfall days, 1.97" (50mm) of snow is typically accumulated.

What is the average length of the day in April in Martin?

In April, the average day length is 13h and 26min.

What time are sunrise and sunset in April?

On the first day of April, sunrise is at 6:27 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:47 pm MDT.

How long on average sun shines in April in Martin?

In Martin, the average sunshine duration in April is 9.4h.

What is the UV index intensity in April?

In April, the average daily maximum UV index in Martin is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Martin, SD

Average temperature in April - Martin, SD
  • Average high temperature in April: 55.4°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in April: 37.4°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 (18.3°F).

Average pressure in April
Martin, SD

Average pressure in April - Martin, SD
  • Average pressure in April: 29.92"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 April
Martin, SD

Average wind speed in April - Martin, SD
  • Average wind speed in April: 12.9mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).

Average humidity in April
Martin, SD

Average humidity in April - Martin, SD
  • Average humidity in April: 62%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in April
Martin, SD

Average rainfall in April - Martin, SD
  • Average rainfall in April: 1.69"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in April
Martin, SD

Average rainfall days in April - Martin, SD
  • Average rainfall days in April: 11.9 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (2.8 days).

Average snowfall in April
Martin, SD

Average snowfall in April - Martin, SD
  • Average snowfall in April: 1.97"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Martin, SD

Average snowfall days in April - Martin, SD
  • Average snowfall days in April: 3.8 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in April / Average sunshine in April - Martin, 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: 9h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in April
Martin, SD

Average sunshine days in April - Martin, SD
  • Average sunshine days in April: 12.1 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in April
Martin, SD

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

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 April
Martin, SD

Average cloud cover in April - Martin, SD
  • Average cloud cover in April: 39

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in April
Martin, SD

Average visibility in April - Martin, 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).

Martin, South Dakota, USA

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