August weather forecast
Petersburg, MI

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Weather in August

The last month of the summer, August, is also a moderately hot month in Petersburg, Michigan, with an average temperature fluctuating between 78.4°F (25.8°C) and 61.3°F (16.3°C).

Temperature

The start of August marks an average high-temperature of a still warm 78.4°F (25.8°C), hardly distinguishable from the conditions in July. During August, Petersburg consistently records a temperature low averaging an enjoyable 61.3°F (16.3°C).

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Petersburg, during August, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Petersburg, during the entire year, the rain falls for 132.8 days and collects up to 16.18" (411mm) of precipitation.

Snowfall

In Petersburg, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 49min.
On the first day of August in Petersburg, Michigan, sunrise is at 6:29 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 8:09 pm EDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

In Petersburg, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature, in August, in Petersburg, is 78.4°F (25.8°C), while the low-temperature averages to 61.3°F (16.3°C).

What is the average humidity in August?

The average relative humidity in August is 80%.

How many days does it rain in August?

In Petersburg, during August, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Petersburg?

In Petersburg, Michigan, snow does not fall in May through October.

How many hours of daylight does Petersburg have in August?

The average day length in August is 13h and 49min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:29 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 8:09 pm EDT.

How many hours of sunshine does Petersburg have in August?

The average sunshine duration in August is 9.9h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Petersburg, MI

Average temperature in August - Petersburg, MI
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Petersburg, MI

Average pressure in August - Petersburg, MI
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Petersburg, MI

Average wind speed in August - Petersburg, MI
  • Average wind speed in August: 6.4mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in August
Petersburg, MI

Average humidity in August - Petersburg, MI
  • Average humidity in August: 80%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in August
Petersburg, MI

Average rainfall in August - Petersburg, MI
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in August
Petersburg, MI

Average rainfall days in August - Petersburg, MI
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in August
Petersburg, MI

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

The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Petersburg, MI

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

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Petersburg, MI

Average daylight in August / Average sunshine in August - Petersburg, 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 12min).

  • Average sunshine in August: 9h and 5min

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).

Average sunshine days in August
Petersburg, MI

Average sunshine days in August - Petersburg, MI
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in August
Petersburg, MI

Average UV index in August - Petersburg, MI
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Petersburg, MI

Average cloud cover in August - Petersburg, MI
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in August
Petersburg, MI

Average visibility in August - Petersburg, MI
  • 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).

Petersburg, Michigan, USA

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