April weather forecast
Fairfax, SD

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Weather in April

April in Fairfax, South Dakota, is a moderate spring month, with an average temperature fluctuating between 39.7°F (4.3°C) and 57.7°F (14.3°C).

Temperature

The start of April brings a rise in the average high-temperature, moving from a chilly 46.9°F (8.3°C) in March to a moderate 57.7°F (14.3°C). The average low-temperature of 39.7°F (4.3°C) is witnessed during April.

Humidity

The average relative humidity in April in Fairfax, South Dakota, is 67%.

Rainfall

In April, in Fairfax, South Dakota, the rain falls for 10.8 days. Throughout April, 1.42" (36mm) of precipitation is accumulated. Throughout the year, in Fairfax, South Dakota, there are 104.1 rainfall days, and 14.29" (363mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Fairfax are January through April, October through December. April is the last month it regularly snows. During 1.8 snowfall days, in April, Fairfax aggregates 0.75" (19mm) of snow. Throughout the year, there are 32.8 snowfall days, and 8.35" (212mm) of snow is accumulated.

Daylight

In Fairfax, the average length of the day in April is 13h and 26min.
On the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of April, in Fairfax, sunrise is at 6:29 am and sunset at 8:35 pm CDT.

Sunshine

The average sunshine in April is 8.1h.

UV index

The average daily maximum UV index in April in Fairfax is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In April, the maximum UV index of 4 translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What is the average April temperature in Fairfax?

In Fairfax, 57.7°F (14.3°C) is the average high-temperature and 39.7°F (4.3°C) is the average low-temperature during April.

What is the average humidity in April in Fairfax?

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

How many days does it rain in April in Fairfax?

In Fairfax, South Dakota, during April, the rain falls for 10.8 days and regularly aggregates up to 1.42" (36mm) of precipitation.

What is the last month it snows in Fairfax?

April is the last month it regularly snows in Fairfax. During 1.8 snowfall days, in April, Fairfax aggregates 0.75" (19mm) of snow.

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

The average day length in April is 13h and 26min.

When is the sunrise / sunset in April in Fairfax?

In April, on the first day of the month, sunrise is at 7:15 am and sunset at 8:02 pm. On the last day of the month, in Fairfax, South Dakota, sunrise is at 6:29 am and sunset at 8:35 pm CDT.

How long on average sun shines in April in Fairfax?

In April, the average sunshine duration is 8.1h.

How high is the UV index in April in Fairfax?

The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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 April
Fairfax, SD

Average temperature in April - Fairfax, SD
  • Average high temperature in April: 57.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in April
Fairfax, SD

Average pressure in April - Fairfax, 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 (29.85"Hg).

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Average wind speed in April
Fairfax, SD

Average wind speed in April - Fairfax, 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 (8.3mph).

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Average humidity in April
Fairfax, SD

Average humidity in April - Fairfax, 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 (62%).

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Average rainfall in April
Fairfax, SD

Average rainfall in April - Fairfax, SD
  • Average rainfall in April: 1.42"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

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Average rainfall days in April
Fairfax, SD

Average rainfall days in April - Fairfax, SD
  • Average rainfall days in April: 10.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

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Average snowfall in April
Fairfax, SD

Average snowfall in April - Fairfax, SD
  • Average snowfall in April: 0.75"

The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Fairfax, SD

Average snowfall days in April - Fairfax, SD
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Fairfax, 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: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in April
Fairfax, SD

Average sunshine days in April - Fairfax, SD
  • Average sunshine days in April: 15.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in April
Fairfax, SD

Average UV index in April - Fairfax, SD
  • Average UV index in April: 4

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

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Average cloud cover in April
Fairfax, SD

Average cloud cover in April - Fairfax, SD
  • Average cloud cover in April: 42

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

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Average visibility in April
Fairfax, SD

Average visibility in April - Fairfax, 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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Fairfax, South Dakota, USA

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