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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 another cold winter month in Hermosa, South Dakota, with an average temperature varying between 18°F (-7.8°C) and 32.7°F (0.4°C). The arrival of January sees a recorded average high-temperature of a still icy 32.7°F (0.4°C), showing little divergence from the previous month's conditions. Weather in January »
Weather in February
February, the last month of the winter in Hermosa, is another cold month, with an average temperature varying between 33.4°F (0.8°C) and 17.8°F (-7.9°C). The average high-temperature for February is a still wintry 33.4°F (0.8°C), closely aligning with the temperature of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Hermosa, South Dakota, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 28.8°F (-1.8°C). The start of March brings a rise in the average high-temperature, moving from a wintry 33.4°F (0.8°C) in February to a chilly 45.5°F (7.5°C). Weather in March »
Weather in April
April is a cool spring month in Hermosa, South Dakota, with an average temperature varying between 35.4°F (1.9°C) and 53.2°F (11.8°C). With the onset of April, Hermosa's weather sees a minor temperature rise, transitioning from a frosty 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 Hermosa, is a comfortable month, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 63.1°F (17.3°C). Hermosa's transition into May is marked by a rise in the average high-temperature, advancing from a cool 53.2°F (11.8°C) in April to an enjoyable 63.1°F (17.3°C). Weather in May »
Weather in June
June, the first month of the summer in Hermosa, is a warm month, with an average temperature fluctuating between 76.5°F (24.7°C) and 55.9°F (13.3°C). The commencement of June sees a shift in the average high-temperature, moving from an enjoyable 63.1°F (17.3°C) in May to a warm 76.5°F (24.7°C). Weather in June »
Weather in July
July, like June, in Hermosa, South Dakota, is another warm summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 63.3°F (17.4°C). In Hermosa, temperatures reach their average annual highs in July, measuring 84.7°F (29.3°C) and a minimum average of 63.3°F (17.4°C). The heat index for July is evaluated at a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Hermosa, is also a moderately hot month, with an average temperature ranging between min 61.5°F (16.4°C) and max 82.8°F (28.2°C). At the start of August, Hermosa's average high-temperature reaches a still moderately hot 82.8°F (28.2°C), subtly different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Hermosa, is still a warm month, with an average temperature fluctuating between 73.9°F (23.3°C) and 54°F (12.2°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from 82.8°F (28.2°C) in August to a still moderately hot 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Hermosa, South Dakota, with an average temperature fluctuating between 56.5°F (13.6°C) and 39.9°F (4.4°C). Hermosa's transition into October is marked by a clear drop in the average high-temperature, receding from a moderately hot 73.9°F (23.3°C) in September to a refreshing 56.5°F (13.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Hermosa, is another chilly month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 45.1°F (7.3°C). A moderate decline in the average high-temperature is seen during November, decreasing from a moderate 56.5°F (13.6°C) in October to a frosty 45.1°F (7.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Hermosa, 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). Hermosa witnesses the coldest weather in December, with temperatures averaging a high of 32.5°F (0.3°C) and a low of 18.7°F (-7.4°C). Weather in December »
Updated: Aug 22, 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?
January is the most humid month, with an average relative humidity of 77%.
What is the driest month?
The month with the least rainfall in Hermosa 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 Hermosa, 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?
Months with snowfall are January through May, September through December.
How much does it snow?
In Hermosa, during the entire year, snow falls for 50.4 days and aggregates up to 24.41" (620mm) of snow.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 5.9h of sunshine.
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 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?
The month with the most snowfall is April, when snow falls for 5.3 days and typically aggregates up to 5.43" (138mm) of snow.
What is the wettest month?
The month with the most rainfall 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 Hermosa, snow does not fall in June through August.
When are the longest days?
June has the longest days of the year, with an average of 15h and 24min of daylight.
What is the month with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the warmest month in Hermosa?
July stands out as Hermosa's warmest month, with temperatures ranging between an average 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 Hermosa?
August and September, with an average relative humidity of 50%, are the least humid months.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 11.8h of sunshine.
What month is the coldest?
Hermosa notes the coldest temperatures in December, with a average high of 32.5°F (0.3°C) and a low of 18.7°F (-7.4°C).
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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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:
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
Hermosa, 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
Hermosa, 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
Hermosa, 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
Hermosa, 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).
Hermosa, South Dakota, USA
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