Climate and monthly weather forecastSouth Yankton, NE
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in South Yankton, Nebraska, with an average temperature varying between 26.8°F (-2.9°C) and 12.9°F (-10.6°C). In South Yankton, the month of January registers the lowest temperatures, averaging 26.8°F (-2.9°C) at the peak and 12.9°F (-10.6°C) at the lowest. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in South Yankton, Nebraska, with an average temperature varying between 30.6°F (-0.8°C) and 16.3°F (-8.7°C). South Yankton's shift into February sets the average high-temperature at a still subzero cold 30.6°F (-0.8°C), a figure that deviates only slightly from January's 26.8°F (-2.9°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in South Yankton, Nebraska, with an average temperature fluctuating between 46.9°F (8.3°C) and 30.2°F (-1°C). The rise of average high-temperatures is noticeable in March, with an increase from a subzero cold 30.6°F (-0.8°C) in February to a frosty 46.9°F (8.3°C). Weather in March »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). 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). Weather in April »Weather in May
May, the last month of the spring in South Yankton, is an agreeable month, with an average temperature ranging between min 50.9°F (10.5°C) and max 69.1°F (20.6°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's mild 57.9°F (14.4°C) to an agreeable 69.1°F (20.6°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in South Yankton, Nebraska, with an average temperature ranging between min 61.7°F (16.5°C) and max 79.7°F (26.5°C). With the onset of June, South Yankton's average high-temperature sees a rise, moving from May's agreeable 69.1°F (20.6°C) to a warm 79.7°F (26.5°C). Weather in June »Weather in July
July, like June, in South Yankton, Nebraska, is a moderately hot summer month, with an average temperature fluctuating between 64.9°F (18.3°C) and 84.9°F (29.4°C). In South Yankton, July is the warmest month, with temperatures averaging a high of 84.9°F (29.4°C) and a low of 64.9°F (18.3°C). The heat index value for July is computed to be a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in South Yankton, is also a moderately hot month, with an average temperature ranging between max 83.3°F (28.5°C) and min 61.3°F (16.3°C). With the onset of August, a modest change to a still moderately hot 83.3°F (28.5°C) from July's 84.9°F (29.4°C) is noted in high-temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in South Yankton, Nebraska, with an average temperature ranging between max 76.1°F (24.5°C) and min 55°F (12.8°C). With the onset of September, South Yankton's average high-temperature slightly adjusts, moderately receding from August's moderately hot 83.3°F (28.5°C) to a still warm 76.1°F (24.5°C). Weather in September »Weather in October
October, like September, is another mild autumn month in South Yankton, Nebraska, with an average temperature ranging between max 59.4°F (15.2°C) and min 42.6°F (5.9°C). As South Yankton welcomes October, there is a noticeable shift in the average high-temperature, dropping from September's moderately hot 76.1°F (24.5°C) to a moderate 59.4°F (15.2°C). Weather in October »Weather in November
November, the last month of the autumn in South Yankton, is another chilly month, with an average temperature varying between 45.9°F (7.7°C) and 30.7°F (-0.7°C). South Yankton in November demonstrates a small temperature transition, adjusting from an average high of a moderate 59.4°F (15.2°C) in October to a frosty 45.9°F (7.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in South Yankton, Nebraska, with an average temperature fluctuating between 18°F (-7.8°C) and 29.8°F (-1.2°C). A clear reduction in the average high-temperature is witnessed with the onset of December, reducing from a chilly 45.9°F (7.7°C) in November to a freezing cold 29.8°F (-1.2°C). Weather in December »Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
South Yankton's coldest temperatures are experienced in January, with average high temperatures of 26.8°F (-2.9°C) and lows of 12.9°F (-10.6°C).
January is the most humid month, with an average relative humidity of 85%.
Throughout the year, there are 117.9 rainfall days, and 21.93" (557mm) of precipitation is accumulated.
January through May, October through December are months with snowfall.
In South Yankton, during the entire year, snow falls for 37.4 days and aggregates up to 14.45" (367mm) of snow.
January has the least sunshine of the year, with an average of 4.4h of sunshine.
The month with the lowest UV index is January, with an average maximum UV index of 1.
The month with the least rainfall in South Yankton is February, when the rain falls for 2.3 days and typically collects 0.59" (15mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.78" (96mm) of precipitation.
In South Yankton, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 18min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
The warmest temperatures occur during July, when averages reach a peak of 84.9°F (29.4°C) and a low of 64.9°F (18.3°C).
With an average of 10.8h of sunshine, July has the most sunshine of the year.
October is the least humid month, with an average relative humidity of 64%.
The month with the most snowfall is December, when snow falls for 8.1 days and typically aggregates up to 2.95" (75mm) of snow.
The month with the shortest days is December, with an average of 9h and 6min of daylight.
Average temperature
South Yankton, NE
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).
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
South Yankton, NE
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.13"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
South Yankton, NE
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.6mph - Average wind speed in June:
8.8mph
- Average wind speed in July:
7.9mph - Average wind speed in August:
8.2mph - Average wind speed in September:
9.2mph - Average wind speed in October:
10.3mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.3mph
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
South Yankton, NE
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).
Average rainfall
South Yankton, NE
- Average rainfall in January:
0.67" - Average rainfall in February:
0.59" - Average rainfall in March:
1.34" - Average rainfall in April:
2.4" - Average rainfall in May:
3.78" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.24" - Average rainfall in August:
2.24" - Average rainfall in September:
1.81" - Average rainfall in October:
1.73" - Average rainfall in November:
0.63" - Average rainfall in December:
1.18"
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
South Yankton, NE
- Average rainfall days in January:
3.4 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
13.4 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
4.7 days - Average rainfall days in December:
3.7 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
South Yankton, NE
- Average snowfall in January:
2.6" - Average snowfall in February:
2.52" - Average snowfall in March:
2.09" - Average snowfall in April:
2.13" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
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
South Yankton, NE
- Average snowfall days in January:
9.7 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.8 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
8.1 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 / Average sunshine
South Yankton, NE
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
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 January:
4h and 24min - Average sunshine in February:
5h and 24min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 54min - Average sunshine in December:
4h and 42min
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
South Yankton, NE
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
21.3 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
South Yankton, NE
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
South Yankton, NE
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
South Yankton, NE
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).
