August weather forecast
Rapid City, MI

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Weather in August

The last month of the summer, August, is also an agreeable month in Rapid City, Michigan, with an average temperature varying between 60.4°F (15.8°C) and 72.1°F (22.3°C).

Temperature

August, with an average high of 72.1°F (22.3°C) and a low of 60.4°F (15.8°C), signifies the warmest month of the year.

Humidity

In August, the average relative humidity is 78%.

Rainfall

In August, the rain falls for 14.8 days. Throughout August, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 136.2 rainfall days, and 24.65" (626mm) of precipitation is accumulated.

Snowfall

In Rapid City, Michigan, snow does not fall in June through September.

Daylight

In August, the average length of the day is 14h and 1min.
On the first day of August in Rapid City, sunrise is at 6:27 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 8:19 pm EDT.

Sunshine

In Rapid City, the average sunshine in August is 10h.

UV index

The months with the highest UV index in Rapid City are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum UV index of 5 in August translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the warmest month in Rapid City?

The month of August sees the average highest temperatures in Rapid City, Michigan, reaching 72.1°F (22.3°C) at the peak and 60.4°F (15.8°C) at the low.

What is the usual temperature for Rapid City in August?

August temperatures in Rapid City vary between a high-temperature of 72.1°F (22.3°C) and a low-temperature of 60.4°F (15.8°C).

What is the average humidity in August in Rapid City?

In August, the average relative humidity in Rapid City is 78%.

How many days does it rain in August in Rapid City?

In Rapid City, Michigan, during August, the rain falls for 14.8 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Rapid City?

June through September are months without snowfall.

How many hours of daylight does Rapid City have in August?

In Rapid City, the average day length in August is 14h and 1min.

What time are sunrise and sunset in August in Rapid City?

In August, on the first day of the month, sunrise is at 6:27 am and sunset at 9:06 pm. On the last day of the month, in Rapid City, sunrise is at 7:03 am and sunset at 8:19 pm EDT.

How many hours of sunshine does Rapid City have in August?

The average sunshine duration in August in Rapid City, Michigan, is 10h.

What is the month with the highest UV index in Rapid City?

The months with the highest UV index in Rapid City are June through August, with an average maximum UV index of 5.

How high is the UV index in August in Rapid City?

In Rapid City, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Rapid City, MI

Average temperature in August - Rapid City, MI
  • Average high temperature in August: 72.1°F

The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (25.7°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is August (60.4°F).
The coldest months (with the lowest average low temperature) are January and February (18.9°F).

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Average pressure in August
Rapid City, MI

Average pressure in August - Rapid City, MI
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Rapid City, MI

Average wind speed in August - Rapid City, MI
  • Average wind speed in August: 8.5mph

The windiest months (with the highest average wind speed) are January, November and December (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in August
Rapid City, MI

Average humidity in August - Rapid City, MI
  • Average humidity in August: 78%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (77%).

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Average rainfall in August
Rapid City, MI

Average rainfall in August - Rapid City, MI
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.54").

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Average rainfall days in August
Rapid City, MI

Average rainfall days in August - Rapid City, MI
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is October (17.9 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in August
Rapid City, MI

Average snowfall in August - Rapid City, MI
  • Average snowfall in August: 0"

The month with the highest snowfall is January (6.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Rapid City, MI

Average snowfall days in August - Rapid City, MI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (21.8 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
Rapid City, MI

Average daylight in August / Average sunshine in August - Rapid City, MI
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).

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Average sunshine days in August
Rapid City, MI

Average sunshine days in August - Rapid City, MI
  • Average sunshine days in August: 13.2 days

The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is January (4.7 days).

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Average UV index in August
Rapid City, MI

Average UV index in August - Rapid City, MI
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in August
Rapid City, MI

Average cloud cover in August - Rapid City, MI
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Rapid City, MI

Average visibility in August - Rapid City, MI
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Rapid City, Michigan, USA

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