August weather forecast
Rock Hill, MO

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Weather in August

August, the last month of the summer in Rock Hill, is another warm month, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 85.5°F (29.7°C).

Temperature

The shift into August reveals an average high-temperature of a moderately hot 85.5°F (29.7°C), closely mirroring July's climate. The mean low-temperature during August nights is a comfortable 67.1°F (19.5°C).

Heat index

August's mean heat index is estimated at a fiery hot 95°F (35°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In August, the average relative humidity in Rock Hill is 75%.

Rainfall

In Rock Hill, in August, during 14.2 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

In Rock Hill, Missouri, snow does not fall in April through October.

Daylight

In August, the average length of the day in Rock Hill is 13h and 37min.
On the first day of August in Rock Hill, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August in Rock Hill is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun 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 is it in Rock Hill in August?

August temperatures in Rock Hill, Missouri, vary between a high-temperature of 85.5°F (29.7°C) and a low-temperature of 67.1°F (19.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 95°F (35°C).

What is the average humidity in August in Rock Hill?

The average relative humidity in August is 75%.

How much does it rain in Rock Hill in August?

In August, in Rock Hill, Missouri, the rain falls for 14.2 days. Throughout August, 3.31" (84mm) of precipitation is accumulated.

When it does not snow in Rock Hill?

April through October are months without snowfall in Rock Hill.

How many hours of daylight does Rock Hill have in August?

The average day length in August is 13h and 37min.

What time are sunrise and sunset in August in Rock Hill?

On the first day of August in Rock Hill, sunrise is at 6:03 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Rock Hill have in August?

The average sunshine duration in August in Rock Hill is 10.3h.

What is the month with the highest UV index in Rock Hill?

The months with the highest UV index in Rock Hill, Missouri, are May through August, with an average maximum UV index of 6.

How high is the UV index in August in Rock Hill?

In August, the average daily maximum UV index in Rock Hill is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Rock Hill, MO

Average temperature in August - Rock Hill, MO
  • Average high temperature in August: 85.5°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Rock Hill, MO

Average pressure in August - Rock Hill, MO
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Rock Hill, MO

Average wind speed in August - Rock Hill, MO
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Rock Hill, MO

Average humidity in August - Rock Hill, MO
  • Average humidity in August: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Rock Hill, MO

Average rainfall in August - Rock Hill, MO
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in August
Rock Hill, MO

Average rainfall days in August - Rock Hill, MO
  • Average rainfall days in August: 14.2 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in August
Rock Hill, MO

Average snowfall in August - Rock Hill, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Rock Hill, MO

Average snowfall days in August - Rock Hill, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in August /
Average sunshine in August
Rock Hill, MO

Average daylight in August / Average sunshine in August - Rock Hill, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Rock Hill, MO

Average sunshine days in August - Rock Hill, MO
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in August
Rock Hill, MO

Average UV index in August - Rock Hill, MO
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Rock Hill, MO

Average cloud cover in August - Rock Hill, MO
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
Rock Hill, MO

Average visibility in August - Rock Hill, MO
  • 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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Rock Hill, Missouri, USA

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