August weather forecast
Ionia, MI

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Weather in August

The last month of the summer, August, is also a moderately hot month in Ionia, Michigan, with an average temperature fluctuating between 77.9°F (25.5°C) and 59.5°F (15.3°C).

Temperature

Ionia's shift from July to August is accompanied by an average high-temperature of a still moderately hot 77.9°F (25.5°C), a slight deviation from 79.3°F (26.3°C). During the month of August, the nighttime temperature falls to an average of 59.5°F (15.3°C).

Humidity

In August, the average relative humidity is 80%.

Rainfall

In August, the rain falls for 13 days. Throughout August, 1.69" (43mm) of precipitation is accumulated. Throughout the year, there are 135.7 rainfall days, and 18.58" (472mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 53min.
On the first day of August, sunrise is at 6:32 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:16 pm EDT.

Sunshine

In Ionia, the average sunshine in August is 9.6h.

UV index

June and 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 health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jun 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The high-temperature during August is 77.9°F (25.5°C) and the low-temperature is 59.5°F (15.3°C).

What is the average humidity in August?

In Ionia, the average relative humidity in August is 80%.

How much does it rain in August?

In Ionia, in August, it is raining for 13 days, with typically 1.69" (43mm) of accumulated precipitation.

When it does not snow?

In Ionia, snow does not fall in May through September.

How many hours of daylight does Ionia have in August?

In Ionia, the average day length in August is 13h and 53min.

When is the sunrise / sunset in August in Ionia?

On the first day of August, sunrise is at 6:32 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 8:16 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.6h.

What is the month with the highest UV index?

June and August, with an average maximum UV index of 6, are months with the highest UV index in Ionia.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Ionia, MI

Average temperature in August - Ionia, MI
  • Average high temperature in August: 77.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in August
Ionia, MI

Average pressure in August - Ionia, MI
  • Average pressure in August: 29.97"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).

Average wind speed in August
Ionia, MI

Average wind speed in August - Ionia, MI
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in August
Ionia, MI

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

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).

Average rainfall in August
Ionia, MI

Average rainfall in August - Ionia, MI
  • Average rainfall in August: 1.69"

The wettest month (with the highest rainfall) is May (2.52").
The driest months (with the least rainfall) are February and November (1.06").

Average rainfall days in August
Ionia, MI

Average rainfall days in August - Ionia, MI
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (5.4 days).

Average snowfall in August
Ionia, MI

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

The month with the highest snowfall is December (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Ionia, MI

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

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in August
Ionia, MI

Average sunshine days in August - Ionia, MI
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is September (17.4 days).
The month with the least sunshine days is February (9.6 days).

Average UV index in August
Ionia, MI

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

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

Average cloud cover in August
Ionia, MI

Average cloud cover in August - Ionia, MI
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Ionia, MI

Average visibility in August - Ionia, MI
  • Average visibility in August: 5mi

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

Ionia, Michigan, USA

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