April weather forecastSouth Yankton, NE
April
Weather in April
April is a mild spring month in South Yankton, Nebraska, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 57.9°F (14.4°C).Temperature
April's arrival brings a change in high-temperatures, moving from a chilly 46.9°F (8.3°C) in March to a mild 57.9°F (14.4°C). Throughout April, South Yankton anticipates an average low-temperature of 40.1°F (4.5°C).Humidity
In South Yankton, the average relative humidity in April is 68%.Rainfall
In South Yankton, in April, it is raining for 12.2 days, with typically 2.4" (61mm) of accumulated precipitation. In South Yankton, during the entire year, the rain falls for 117.9 days and collects up to 21.93" (557mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In South Yankton, in April, snow falls for 2.4 days, with typically accumulated 2.13" (54mm) of snow. Throughout the year, in South Yankton, there are 37.4 snowfall days, and 14.45" (367mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 7:10 am and sunset at 7:56 pm. On the last day of April, sunrise is at 6:23 am and sunset at 8:29 pm CDT.
Sunshine
The average sunshine in April is 8h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during April translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
South Yankton, NE
- Average high temperature in April: 57.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in April: 40.1°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 (12.9°F).
Average pressure in April
South Yankton, NE
- 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).
Average wind speed in April
South Yankton, NE
- 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 (7.9mph).
Average humidity in April
South Yankton, NE
- Average humidity in April: 68%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).
Average rainfall in April
South Yankton, NE
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in April
South Yankton, NE
- Average rainfall days in April: 12.2 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in April
South Yankton, NE
- Average snowfall in April: 2.13"
The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
South Yankton, NE
- Average snowfall days in April: 2.4 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
South Yankton, NE
- Average daylight in April: 13h and 24min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
South Yankton, NE
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
South Yankton, NE
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
South Yankton, NE
- 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 25).
Average visibility in April
South Yankton, NE
- 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).





