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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
Weather in January
January, like December, is another subzero cold winter month in Seneca, South Dakota, with an average temperature fluctuating between 22.6°F (-5.2°C) and 9.1°F (-12.7°C). Seneca reaches its lowest average temperatures in January, measuring 22.6°F (-5.2°C) at the peak and 9.1°F (-12.7°C) at the lowest. Weather in January »
Weather in February
February, the last month of the winter in Seneca, is another freezing cold month, with an average temperature fluctuating between 25.2°F (-3.8°C) and 11.8°F (-11.2°C). Seneca notes an average high-temperature of a still subzero cold 25.2°F (-3.8°C) in February, displaying minor variation from January. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Seneca, South Dakota, with an average temperature ranging between min 25.5°F (-3.6°C) and max 39.9°F (4.4°C). The beginning of March marks a clear shift in the average high-temperature, advancing from February's subzero cold 25.2°F (-3.8°C) to a cold 39.9°F (4.4°C). Weather in March »
Weather in April
April is a fresh spring month in Seneca, South Dakota, with an average temperature fluctuating between 54°F (12.2°C) and 36.7°F (2.6°C). Seneca's transition into April brings a rise in the average high-temperature, moving from an icy 39.9°F (4.4°C) in March to a cool 54°F (12.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Seneca, South Dakota, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 66.2°F (19°C). Seneca's weather shows a temperature rise with the arrival of May, moving from a cool 54°F (12.2°C) in April to a refreshing 66.2°F (19°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Seneca, South Dakota, with an average temperature ranging between max 77.9°F (25.5°C) and min 58.5°F (14.7°C). In Seneca, the average high-temperature in June increases from an enjoyable 66.2°F (19°C) in May to a warm 77.9°F (25.5°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Seneca, South Dakota, with an average temperature fluctuating between 64.9°F (18.3°C) and 85.8°F (29.9°C). July is Seneca's warmest month, registering average high temperatures of 85.8°F (29.9°C) and lows of 64.9°F (18.3°C). For most parts of July, the heat index is calculated to be a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Seneca, South Dakota, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 83.8°F (28.8°C). The average high-temperature is a still moderately hot 83.8°F (28.8°C) in August, hardly different from the 85.8°F (29.9°C) recorded in July. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Seneca, South Dakota, with an average temperature fluctuating between 54.5°F (12.5°C) and 74.5°F (23.6°C). September indicates a shift in the average high-temperature, from August's 83.8°F (28.8°C) to a still moderately hot 74.5°F (23.6°C). Weather in September »
Weather in October
October, the same as September, in Seneca, South Dakota, is a moderate autumn month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 55.9°F (13.3°C). With the onset of October, Seneca's weather experiences a distinct temperature drop, moving from a moderately hot 74.5°F (23.6°C) in September to a moderate 55.9°F (13.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Seneca, is also an icy month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 41.9°F (5.5°C). November weather is marked by a drop in the average high-temperature, falling from a refreshing 55.9°F (13.3°C) in October to a wintry 41.9°F (5.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Seneca, South Dakota, with temperature in the range of an average high of 25.5°F (-3.6°C) and an average low of 14.2°F (-9.9°C). As Seneca welcomes December, the average high-temperature witnesses a distinct drop, moving from an icy 41.9°F (5.5°C) in November to a subzero cold 25.5°F (-3.6°C). Weather in December »
Updated: Aug 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 time of the year is the coldest?
January, characterized by an average high temperature of 22.6°F (-5.2°C) and a low temperature of 9.1°F (-12.7°C), is generally the coldest month.
What is the most humid month?
January is the most humid month, with an average relative humidity of 88%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 2.8 days and accumulates 0.55" (14mm) of precipitation.
How many days does it rain?
Throughout the year, there are 97.8 rainfall days, and 16.65" (423mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall in Seneca.
How much does it snow?
In Seneca, during the entire year, snow falls for 59.7 days and aggregates up to 19.96" (507mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine in Seneca, South Dakota, is January, with an average of 3.9h of sunshine.
What are the months with the lowest UV index in Seneca?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 12.3 days and typically aggregates up to 5.04" (128mm) of snow.
When is Daylight Saving Time (DST)?
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?
June is the month with the most rainfall. Rain falls for 14.4 days and accumulates 2.8" (71mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
With an average of 15h and 36min of daylight, June has the longest days of the year.
What is the month with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest?
July, with its high-temperature average of 85.8°F (29.9°C) and a low-temperature average of 64.9°F (18.3°C), is the warmest month.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 11.2h of sunshine.
What are the least humid months?
The months with the lowest humidity are August and September, with an average relative humidity of 56%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
Seneca, SD
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (22.6°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 (9.1°F).
Average pressure
Seneca, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.92"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:
29.95"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Seneca, SD
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.8mph - Average wind speed in May:
11mph - Average wind speed in June:
10.5mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.7mph - Average wind speed in September:
11.1mph - Average wind speed in October:
11.7mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity
Seneca, SD
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (56%).
Average rainfall
Seneca, SD
- Average rainfall in January:
0.55" - Average rainfall in February:
0.75" - Average rainfall in March:
1.06" - Average rainfall in April:
1.61" - Average rainfall in May:
2.32" - Average rainfall in June:
2.8"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Seneca, SD
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
14.4 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7.9 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.3 days
The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Seneca, SD
- Average snowfall in January:
3.19" - Average snowfall in February:
5.04" - Average snowfall in March:
3.43" - Average snowfall in April:
2.64" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Seneca, SD
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
10.1 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
0.3 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:
2.3 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
11.2 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Seneca, SD
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - 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 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
5h and 0min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Seneca, SD
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
19.6 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.1 days).
Average UV index
Seneca, SD
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 1).
Average cloud cover
Seneca, SD
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility
Seneca, SD
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Seneca, South Dakota, USA
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