August weather forecast
Hamill, SD

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Weather in August

The last month of the summer, August, is another warm month in Hamill, South Dakota, with an average temperature varying between 85.8°F (29.9°C) and 63.9°F (17.7°C).

Temperature

As July transitions into August, Hamill records an average high-temperature of a moderately hot 85.8°F (29.9°C), showing a gentle shift from the preceding month. In stark contrast to the day's heat, the temperature dips to an average of 63.9°F (17.7°C) during August nights.

Heat index

The heat index value for August is computed to be a hot 89.6°F (32°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 57%.

Rainfall

In Hamill, during August, the rain falls for 11.8 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Hamill, there are 103.9 rainfall days, and 16.85" (428mm) of precipitation is accumulated.

Snowfall

In Hamill, snow does not fall in June through September.

Daylight

In Hamill, the average length of the day in August is 13h and 55min.
On the first day of August in Hamill, sunrise is at 6:28 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:15 pm CDT.

Sunshine

In Hamill, the average sunshine in August is 11h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

How hot does it get in Hamill in August?

The high-temperature, in August, in Hamill, is 85.8°F (29.9°C), while the low-temperature averages to 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What are the least humid months in Hamill?

The months with the lowest humidity in Hamill, South Dakota, are August and September, with an average relative humidity of 57%.

What is the average humidity in August in Hamill?

In August, the average relative humidity in Hamill, South Dakota, is 57%.

How much does it rain in Hamill in August?

In Hamill, South Dakota, in August, it is raining for 11.8 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Hamill?

In Hamill, South Dakota, snow does not fall in June through September.

How many hours of daylight does Hamill have in August?

The average day length in August in Hamill, South Dakota, is 13h and 55min.

When are sunrise and sunset in August in Hamill?

On the first day of August, sunrise is at 6:28 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:15 pm CDT.

How many hours of sunshine does Hamill have in August?

The average sunshine duration in August in Hamill, South Dakota, is 11h.

What is the month with the highest UV index in Hamill?

The months with the highest UV index in Hamill, South Dakota, are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Hamill?

In Hamill, South Dakota, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Hamill, SD

Average temperature in August - Hamill, SD
  • Average high temperature in August: 85.8°F

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).

  • Average low temperature in August: 63.9°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).

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Average pressure in August
Hamill, SD

Average pressure in August - Hamill, SD
  • Average pressure in August: 29.91"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).

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Average wind speed in August
Hamill, SD

Average wind speed in August - Hamill, SD
  • Average wind speed in August: 9.8mph

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).

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Average humidity in August
Hamill, SD

Average humidity in August - Hamill, SD
  • Average humidity in August: 57%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

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Average rainfall in August
Hamill, SD

Average rainfall in August - Hamill, SD
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in August
Hamill, SD

Average rainfall days in August - Hamill, SD
  • Average rainfall days in August: 11.8 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).

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Average snowfall in August
Hamill, SD

Average snowfall in August - Hamill, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Hamill, SD

Average snowfall days in August - Hamill, SD
  • Average snowfall days in August: 0 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).

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Average daylight in August /
Average sunshine in August
Hamill, SD

Average daylight in August / Average sunshine in August - Hamill, SD
  • Average daylight in August: 13h 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: 9h and 0min).

  • Average sunshine in August: 11h and 0min

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).

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Average sunshine days in August
Hamill, SD

Average sunshine days in August - Hamill, SD
  • Average sunshine days in August: 15.4 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).

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Average UV index in August
Hamill, SD

Average UV index in August - Hamill, SD
  • Average UV index in August: 6

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).

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Average cloud cover in August
Hamill, SD

Average cloud cover in August - Hamill, SD
  • Average cloud cover in August: 20

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).

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Average visibility in August
Hamill, SD

Average visibility in August - Hamill, SD
  • Average visibility in August: 6mi

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).

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Hamill, South Dakota, USA

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