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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, the same as December, is an icy winter month in Rapid Valley, South Dakota, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 32.7°F (0.4°C). January brings a marginal elevation to a still wintry 32.7°F (0.4°C) from December's 32.5°F (0.3°C) in Rapid Valley's average high-temperatures. Weather in January »
Weather in February
February, the last month of the winter in Rapid Valley, is also an icy month, with an average temperature fluctuating between 33.4°F (0.8°C) and 17.8°F (-7.9°C). Rapid Valley notes an average high-temperature of a still icy 33.4°F (0.8°C) in February, hardly diverging from January. Weather in February »
Weather in March
March, the first month of the spring in Rapid Valley, is a frosty month, with an average temperature fluctuating between 28.8°F (-1.8°C) and 45.5°F (7.5°C). March's arrival brings a temperature shift, moving from a wintry 33.4°F (0.8°C) in February to a frosty 45.5°F (7.5°C). Weather in March »
Weather in April
April is a fresh spring month in Rapid Valley, South Dakota, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 35.4°F (1.9°C). The shift into April brings a slight increase in the average high-temperature, moving from a chilly 45.5°F (7.5°C) in March to a fresh 53.2°F (11.8°C). Weather in April »
Weather in May
May, the last month of the spring in Rapid Valley, is a comfortable month, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 45.3°F (7.4°C). The shift into May brings an increase in the average high-temperature, moving from a cool 53.2°F (11.8°C) in April to a refreshing 63.1°F (17.3°C). Weather in May »
Weather in June
June, the first month of the summer in Rapid Valley, is a moderately hot month, with an average temperature ranging between max 76.5°F (24.7°C) and min 55.9°F (13.3°C). With the onset of June, the average high-temperature slightly shifts from May's refreshing 63.1°F (17.3°C) to a moderately hot 76.5°F (24.7°C). Weather in June »
Weather in July
July, like June, in Rapid Valley, South Dakota, is a moderately hot summer month, with an average temperature varying between 84.7°F (29.3°C) and 63.3°F (17.4°C). With average high temperatures of 84.7°F (29.3°C) and lows of 63.3°F (17.4°C), July is the warmest month. July's average heat index is estimated at a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Rapid Valley, is also a moderately hot month, with an average temperature ranging between max 82.8°F (28.2°C) and min 61.5°F (16.4°C). August commences with an average high-temperature of a still warm 82.8°F (28.2°C), showing little deviation from July's 84.7°F (29.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Rapid Valley, South Dakota, with an average temperature ranging between min 54°F (12.2°C) and max 73.9°F (23.3°C). With the onset of September, Rapid Valley's climate undergoes a slight change as the average high-temperature moves from a moderately hot 82.8°F (28.2°C) in August to a still warm 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Rapid Valley, South Dakota, with an average temperature fluctuating between 56.5°F (13.6°C) and 39.9°F (4.4°C). The shift into October is characterized by a noticeable reduction in the average high-temperature, decreasing from September's moderately hot 73.9°F (23.3°C) to a mild 56.5°F (13.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Rapid Valley, is another chilly month, with an average temperature ranging between max 45.1°F (7.3°C) and min 29.1°F (-1.6°C). With November's onset, the average high-temperature recedes from October's mild 56.5°F (13.6°C) to a chilly 45.1°F (7.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Rapid Valley, South Dakota, with temperature in the range of an average low of 18.7°F (-7.4°C) and an average high of 32.5°F (0.3°C). December is the coldest month, exhibiting average temperatures of 32.5°F (0.3°C) at the peak and 18.7°F (-7.4°C) at the base. Weather in December »
Updated: Feb 14, 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 most humid month in Rapid Valley?
January is the most humid month in Rapid Valley, with an average relative humidity of 77%.
What is the driest month in Rapid Valley?
The month with the least rainfall is January, when the rain falls for 5.3 days and typically collects 0.43" (11mm) of precipitation.
How many days does it rain in Rapid Valley?
In Rapid Valley, South Dakota, during the entire year, the rain falls for 118.8 days and collects up to 15.39" (391mm) of precipitation.
When does it snow in Rapid Valley?
January through May, September through December are months with snowfall.
How much does it snow in Rapid Valley?
In Rapid Valley, during the entire year, snow falls for 50.4 days and aggregates up to 24.41" (620mm) of snow.
When is the lowest UV index in Rapid Valley?
The months with the lowest UV index in Rapid Valley are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in Rapid Valley?
With an average of 5.9h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Rapid Valley?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
When does it snow the most in Rapid Valley?
April is the month with the most snowfall. Snow falls for 5.3 days and accumulates 5.43" (138mm) of snow.
What is the rainiest month in Rapid Valley?
The month with the most rainfall in Rapid Valley is May, when the rain falls for 17.1 days and typically aggregates up to 2.28" (58mm) of precipitation.
When it does not snow in Rapid Valley?
In Rapid Valley, South Dakota, snow does not fall in June through August.
When are the longest days in Rapid Valley?
The month with the longest days is June, with an average of 15h and 24min of daylight.
When is the highest UV index in Rapid Valley?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What is the warmest month in Rapid Valley?
In Rapid Valley, South Dakota, the peak average temperatures are observed in July, with a high of 84.7°F (29.3°C) and a low of 63.3°F (17.4°C).
What are the least humid months in Rapid Valley?
The months with the lowest humidity are August and September, with an average relative humidity of 50%.
What month has the most sunshine in Rapid Valley?
The month with the most sunshine is August, with an average of 11.8h of sunshine.
What part of the year is the coldest in Rapid Valley?
Rapid Valley's December weather, with an average high temperature of 32.5°F (0.3°C) and an average low temperature of 18.7°F (-7.4°C), tends to be the coldest of the year.
What is the month with the shortest days in Rapid Valley?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Rapid Valley, SD
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (32.5°F).
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (17.8°F).
Average pressure
Rapid Valley, SD
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.01"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:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Rapid Valley, SD
- Average wind speed in January:
9mph - Average wind speed in February:
9mph - Average wind speed in March:
9.5mph - Average wind speed in April:
10.3mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.2mph
- Average wind speed in July:
8.4mph - Average wind speed in August:
8.2mph - Average wind speed in September:
9.1mph - Average wind speed in October:
10.1mph - Average wind speed in November:
9.2mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity
Rapid Valley, SD
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (50%).
Average rainfall
Rapid Valley, SD
- Average rainfall in January:
0.43" - Average rainfall in February:
0.67" - Average rainfall in March:
1.14" - Average rainfall in April:
2.24" - Average rainfall in May:
2.28" - Average rainfall in June:
1.73"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.5" - Average rainfall in September:
0.94" - Average rainfall in October:
1.14" - Average rainfall in November:
0.63" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Rapid Valley, SD
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.9 days - Average rainfall days in March:
9.4 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
7.8 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
5.9 days - Average rainfall days in December:
4.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is December (4.8 days).
Average snowfall
Rapid Valley, SD
- Average snowfall in January:
2.4" - Average snowfall in February:
4.25" - Average snowfall in March:
4.21" - Average snowfall in April:
5.43" - Average snowfall in May:
1.46" - Average snowfall in June:
0"
The month with the highest snowfall is April (5.43").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Rapid Valley, SD
- Average snowfall days in January:
9.4 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
7.5 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
1.3 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:
0.1 days - Average snowfall days in October:
2.6 days - Average snowfall days in November:
5.6 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Rapid Valley, 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:
14h and 0min - 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:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
6h and 1min - Average sunshine in February:
5h and 5min - Average sunshine in March:
7h and 4min - Average sunshine in April:
9h and 2min - Average sunshine in May:
10h and 1min - Average sunshine in June:
11h and 2min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 2min - Average sunshine in October:
7h and 2min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days
Rapid Valley, SD
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
19.9 days - Average sunshine days in October:
17.7 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
19.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (11 days).
Average UV index
Rapid Valley, SD
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Rapid Valley, SD
The months with the most cloud cover are February and April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility
Rapid Valley, 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).
Rapid Valley, South Dakota, USA
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