August weather forecast
Roseville, MI

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Weather in August

August continues the momentum of summer’s mirth in Roseville, Michigan, offering comparably high temperatures to those experienced during July. Sunny days and a cornucopia of outdoor activities remain the highlight of the season. Interestingly, the relative humidity marks its lowest level of the year at 72%, offering some respite from July. Packing a picnic or planning an evening on the beach would be the perfect manner to say goodbye to summer. However, various heat stroke prevention measures will need to be implemented given the sustained high temperatures.

Temperature

A minor adjustment in Roseville's average high-temperature is noted with the start of August, touching a still warm 79.3°F (26.3°C) from July's 80.8°F (27.1°C). Throughout August, an average low-temperature of 64.2°F (17.9°C) is expected in Roseville.

Humidity

July and August, with an average relative humidity of 72%, are the least humid months in Roseville.

Rainfall

In Roseville, during August, the rain falls for 16.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, in Roseville, there are 163.7 rainfall days, and 27.95" (710mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Roseville.

Daylight

In August, the average length of the day in Roseville, Michigan, is 13h and 51min.
On the first day of the month, sunrise is at 6:24 am and sunset at 8:51 pm. On the last day of August, in Roseville, sunrise is at 6:56 am and sunset at 8:07 pm EDT.

Sunshine

In August, the average sunshine is 10.2h.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In August, the maximum UV index of 6 suggests this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the temperature in August in Roseville?

An average high-temperature, in August, in Roseville, is 79.3°F (26.3°C) and the average low-temperature is 64.2°F (17.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 84.2°F (29°C).

What are the least humid months in Roseville?

July and August, with an average relative humidity of 72%, are the least humid months in Roseville.

What is the average humidity in August in Roseville?

In August, the average relative humidity in Roseville, Michigan, is 72%.

How many days does it rain in August in Roseville?

In Roseville, during August, the rain falls for 16.8 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow in Roseville?

June through September are months without snowfall.

How many hours of daylight does Roseville have in August?

In Roseville, the average day length in August is 13h and 51min.

When are sunrise and sunset in August in Roseville?

In August, on the first day of the month, sunrise is at 6:24 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:07 pm EDT.

How long on average sun shines in August in Roseville?

In Roseville, the average sunshine duration in August is 10.2h.

What are the months with the highest UV index in Roseville?

The months with the highest UV index are July and August, with an average maximum UV index of 6.

How high is the UV index in August in Roseville?

The average daily maximum UV index in August in Roseville is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe 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
Roseville, MI

Average temperature in August - Roseville, MI
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in August
Roseville, MI

Average pressure in August - Roseville, MI
  • Average pressure in August: 29.97"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Roseville, MI

Average wind speed in August - Roseville, MI
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in August
Roseville, MI

Average humidity in August - Roseville, MI
  • Average humidity in August: 72%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (72%).

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Average rainfall in August
Roseville, MI

Average rainfall in August - Roseville, MI
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in August
Roseville, MI

Average rainfall days in August - Roseville, MI
  • Average rainfall days in August: 16.8 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in August
Roseville, MI

Average snowfall in August - Roseville, MI
  • Average snowfall in August: 0"

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Roseville, MI

Average snowfall days in August - Roseville, MI
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.4 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
Roseville, MI

Average daylight in August / Average sunshine in August - Roseville, MI
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in August
Roseville, MI

Average sunshine days in August - Roseville, MI
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (10.1 days).

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Average UV index in August
Roseville, MI

Average UV index in August - Roseville, MI
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Roseville, MI

Average cloud cover in August - Roseville, MI
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in August
Roseville, MI

Average visibility in August - Roseville, MI
  • Average visibility in August: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Roseville, Michigan, USA

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