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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Vivian, South Dakota, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 26.2°F (-3.2°C). In Vivian, the lowest average temperatures are observed in January, with a high of 26.2°F (-3.2°C) and a low of 12.6°F (-10.8°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Vivian, South Dakota, with an average temperature fluctuating between 28.8°F (-1.8°C) and 15.3°F (-9.3°C). The transition into February reveals an average high-temperature of a still subzero cold 28.8°F (-1.8°C), mirroring a close resemblance to January. Weather in February »
Weather in March
March, the first month of the spring in Vivian, is a frosty month, with temperature in the range of an average low of 28.8°F (-1.8°C) and an average high of 44.1°F (6.7°C). The start of March brings a distinct shift in the average high-temperature, escalating from February's freezing cold 28.8°F (-1.8°C) to a chilly 44.1°F (6.7°C). Weather in March »
Weather in April
April in Vivian, South Dakota, is a mild spring month, with an average temperature fluctuating between 38.5°F (3.6°C) and 56.1°F (13.4°C). With the onset of April, Vivian's average high-temperature sees a rise, moving from March's frosty 44.1°F (6.7°C) to a moderate 56.1°F (13.4°C). Weather in April »
Weather in May
May, the last month of the spring in Vivian, is a pleasant month, with an average temperature ranging between max 68°F (20°C) and min 49.6°F (9.8°C). With the onset of May, the average high-temperature slightly shifts from April's moderate 56.1°F (13.4°C) to an agreeable 68°F (20°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Vivian, South Dakota, with an average temperature varying between 80.6°F (27°C) and 61°F (16.1°C). June's arrival coincides with a rise in the average high-temperature, moving from May's agreeable 68°F (20°C) to a warm 80.6°F (27°C). Weather in June »
Weather in July
July is a tropical summer month in Vivian, South Dakota, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 67.5°F (19.7°C). July proves to be the warmest month, recording an average peak temperature of 88.7°F (31.5°C) and a minimum temperature of 67.5°F (19.7°C). In July, the average heat index is estimated at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Vivian, is another tropical month, with an average temperature varying between 65.5°F (18.6°C) and 86°F (30°C). The beginning of August records an average high-temperature of a still tropical 86°F (30°C), marking a negligible difference from July's 88.7°F (31.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Vivian, is also a moderately hot month, with an average temperature varying between 76.8°F (24.9°C) and 57.4°F (14.1°C). Vivian's September weather shows a moderate shift in high-temperatures, falling from August's tropical 86°F (30°C) to a warm 76.8°F (24.9°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Vivian, South Dakota, with an average temperature fluctuating between 42.8°F (6°C) and 58.5°F (14.7°C). The beginning of October signals a clear reduction in the average high-temperature, falling from a moderately hot 76.8°F (24.9°C) in September to a refreshing 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Vivian, is another chilly month, with an average temperature fluctuating between 44.2°F (6.8°C) and 29.5°F (-1.4°C). The average high-temperature decreases in November, shifting from a refreshing 58.5°F (14.7°C) in October to a chilly 44.2°F (6.8°C). Weather in November »
Weather in December
December, the first month of the winter in Vivian, is still a freezing cold month, with an average temperature varying between 28.2°F (-2.1°C) and 16.3°F (-8.7°C). Vivian in December sees a clear temperature decline, with average high-temperatures decreasing from a chilly 44.2°F (6.8°C) in November to a freezing cold 28.2°F (-2.1°C). Weather in December »
Updated: Jul 4, 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
What is the coldest month?
Vivian notes the coldest temperatures in January, with a average high of 26.2°F (-3.2°C) and a low of 12.6°F (-10.8°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 85%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.35" (9mm) of precipitation.
How many days does it rain?
Throughout the year, there are 98.5 rainfall days, and 13.7" (348mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Vivian, South Dakota, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.
What is the month with the least sunshine?
With an average of 4.6h of sunshine, January has the least sunshine of the year.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 10 days and accumulates 3.66" (93mm) of snow.
When is the lowest UV index in Vivian?
February and December, with an average maximum UV index of 1, are months with the lowest UV index.
When is Daylight Saving Time (DST) in Vivian?
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.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 13.6 days and typically aggregates up to 2.24" (57mm) of precipitation.
When it does not snow?
In Vivian, snow does not fall in June through September.
When are the longest days?
With an average of 15h and 24min of daylight, June has the longest days of the year.
What are the warmest months?
With average high and low temperatures of 88.7°F (31.5°C) and 67.5°F (19.7°C) respectively, July is Vivian's warmest month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.5h of sunshine.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 7.
What are the least humid months?
August and September, with an average relative humidity of 52%, are the least humid months.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 0min of daylight.
Average temperature
Vivian, SD
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Vivian, SD
- 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:
29.94"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.94"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Vivian, SD
- Average wind speed in January:
10.3mph - Average wind speed in February:
9.9mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.9mph - Average wind speed in May:
11.1mph - Average wind speed in June:
10.6mph
- Average wind speed in July:
10mph - Average wind speed in August:
9.9mph - Average wind speed in September:
11.1mph - Average wind speed in October:
11.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).
Average humidity
Vivian, SD
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).
Average rainfall
Vivian, SD
- Average rainfall in January:
0.35" - Average rainfall in February:
0.55" - Average rainfall in March:
0.94" - Average rainfall in April:
1.38" - Average rainfall in May:
2.24" - Average rainfall in June:
2.17"
- Average rainfall in July:
1.93" - Average rainfall in August:
1.34" - Average rainfall in September:
0.67" - Average rainfall in October:
0.98" - Average rainfall in November:
0.47" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days
Vivian, SD
- Average rainfall days in January:
2.7 days - Average rainfall days in February:
2.4 days - Average rainfall days in March:
7.3 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
13.6 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
8.9 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
4 days - Average rainfall days in December:
2.9 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).
Average snowfall
Vivian, SD
- Average snowfall in January:
1.97" - Average snowfall in February:
3.66" - Average snowfall in March:
2.13" - Average snowfall in April:
1.61" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Vivian, SD
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
10 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
3.1 days - Average snowfall days in May:
0.1 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:
1.5 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
8.2 days
The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Vivian, SD
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
5h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
11h and 3min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 1min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Vivian, SD
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
15.1 days - Average sunshine days in August:
15 days - Average sunshine days in September:
18.8 days - Average sunshine days in October:
21.3 days - Average sunshine days in November:
22.3 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).
Average UV index
Vivian, SD
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Vivian, SD
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility
Vivian, SD
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).