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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 a freezing cold winter month in Ideal, South Dakota, with an average temperature fluctuating between 15.6°F (-9.1°C) and 28.8°F (-1.8°C). January, with its high-temperature average of 28.8°F (-1.8°C) and a low-temperature average of 15.6°F (-9.1°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Ideal, is a wintry month, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 18.1°F (-7.7°C). Ideal's average high-temperature in February sits at a wintry 32.5°F (0.3°C), showing little difference from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Ideal, is a frosty month, with temperature in the range of an average high of 46.6°F (8.1°C) and an average low of 30.6°F (-0.8°C). With the onset of March, Ideal experiences a temperature shift, with the average high-temperature moving from a wintry 32.5°F (0.3°C) in February to a chilly 46.6°F (8.1°C). Weather in March »
Weather in April
April in Ideal, South Dakota, is a moderate spring month, with an average temperature varying between 39.2°F (4°C) and 56.7°F (13.7°C). The start of April brings a shift in the average high-temperature, increasing from March's frosty 46.6°F (8.1°C) to a refreshing 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Ideal, South Dakota, with an average temperature fluctuating between 49.6°F (9.8°C) and 67.8°F (19.9°C). As April gives way to May, the average high-temperature displays an increase, moving from a mild 56.7°F (13.7°C) to a comfortable 67.8°F (19.9°C). Weather in May »
Weather in June
June, the first month of the summer in Ideal, is a moderately hot month, with an average temperature fluctuating between 80.2°F (26.8°C) and 61°F (16.1°C). Ideal experiences a temperature shift with the start of June, with average high-temperatures moving from a comfortable 67.8°F (19.9°C) in May to a warm 80.2°F (26.8°C). Weather in June »
Weather in July
July is a tropical summer month in Ideal, South Dakota, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 88°F (31.1°C). Temperature readings reach their annual highs in July, averaging 88°F (31.1°C) and a minimum average of 66.7°F (19.3°C). July's average heat index is calculated to be a sweltering 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Ideal, South Dakota, with an average temperature ranging between min 63.9°F (17.7°C) and max 85.8°F (29.9°C). Ideal's transition from July to August introduces an average high-temperature of a moderately hot 85.8°F (29.9°C), marking an insignificant variation from the 88°F (31.1°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Ideal, South Dakota, with an average temperature fluctuating between 76.6°F (24.8°C) and 56.3°F (13.5°C). A change in temperatures is noted as August gives way to September, with average highs reducing from 85.8°F (29.9°C) to a still moderately hot 76.6°F (24.8°C). Weather in September »
Weather in October
October, the same as September, in Ideal, South Dakota, is a moderate autumn month, with an average temperature varying between 42.8°F (6°C) and 59.2°F (15.1°C). In Ideal, the onset of October is marked by a decreased average high-temperature, declining from September's moderately hot 76.6°F (24.8°C) to a moderate 59.2°F (15.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Ideal, South Dakota, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 46.6°F (8.1°C). The commencement of November involves a temperature shift, with the average high-temperature dropping from a refreshing 59.2°F (15.1°C) in October to a chilly 46.6°F (8.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Ideal, South Dakota, with an average temperature ranging between min 18.3°F (-7.6°C) and max 31.1°F (-0.5°C). As November transitions into December, a clear downswing in temperatures is observed, with average highs retreating from a chilly 46.6°F (8.1°C) to a freezing cold 31.1°F (-0.5°C). Weather in December »
Updated: Aug 17, 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 month is the coldest?
Temperature readings reach their annual highs in January, averaging 28.8°F (-1.8°C) and a minimum average of 15.6°F (-9.1°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 82%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 2.7 days and typically collects 0.47" (12mm) of precipitation.
How much does it rain?
Throughout the year, there are 103.9 rainfall days, and 16.85" (428mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through May, October through December.
How much does it snow in Ideal?
In Ideal, South Dakota, during the entire year, snow falls for 39.7 days and aggregates up to 14.45" (367mm) of snow.
What is the month with the least sunshine?
With an average of 4.9h of sunshine, January has the least sunshine of the year.
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 in Ideal?
June is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.8" (71mm) of precipitation.
When it does not snow?
In Ideal, snow does not fall in June through September.
When are the longest days?
The month with the longest days is June, with an average of 15h and 24min of daylight.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
The warmest month is July, with an average high-temperature of 88°F (31.1°C) and an average low-temperature of 66.7°F (19.3°C).
What month has the most sunshine?
With an average of 11.4h of sunshine, July has the most sunshine of the year.
What is the least humid month?
The months with the lowest humidity are August and September, with an average relative humidity of 57%.
When does it snow the most?
December is the month with the most snowfall. Snow falls for 8 days and accumulates 3.19" (81mm) of snow.
What is the month with the shortest days?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
When is the lowest UV index?
With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature
Ideal, SD
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure
Ideal, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"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 (29.84"Hg).
Average wind speed
Ideal, SD
- Average wind speed in January:
11.1mph - Average wind speed in February:
10.6mph - Average wind speed in March:
11.2mph - Average wind speed in April:
11.9mph - Average wind speed in May:
11mph - Average wind speed in June:
10.3mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.8mph - Average wind speed in September:
10.7mph - Average wind speed in October:
11.6mph - Average wind speed in November:
10.9mph - Average wind speed in December:
10.9mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).
Average humidity
Ideal, SD
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).
Average rainfall
Ideal, SD
- Average rainfall in January:
0.47" - Average rainfall in February:
0.51" - Average rainfall in March:
1.22" - Average rainfall in April:
1.77" - Average rainfall in May:
2.6" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.09" - Average rainfall in August:
1.46" - Average rainfall in September:
1.34" - Average rainfall in October:
1.3" - Average rainfall in November:
0.51" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Ideal, SD
- Average rainfall days in January:
2.7 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
7.3 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
12.9 days - Average rainfall days in August:
11.8 days - Average rainfall days in September:
9.5 days - Average rainfall days in October:
8 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).
Average snowfall
Ideal, SD
- Average snowfall in January:
2.64" - Average snowfall in February:
2.52" - Average snowfall in March:
2.28" - Average snowfall in April:
1.73" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Ideal, SD
- Average snowfall days in January:
9.6 days - Average snowfall days in February:
8 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
2.8 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:
1.6 days - Average snowfall days in November:
3.9 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ideal, 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 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - 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 5min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 2min - 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:
5h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Ideal, SD
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
17.9 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
15.4 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
20 days - Average sunshine days in November:
20.8 days - Average sunshine days in December:
20.2 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index
Ideal, SD
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Ideal, SD
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility
Ideal, 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).
Ideal, South Dakota, USA
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