August weather forecast
Evanston, OH

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Weather in August

The last month of the summer, August, is another warm month in Evanston, Ohio, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 83.8°F (28.8°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still warm 83.8°F (28.8°C), not significantly different from the 84.7°F (29.3°C) of July. Evanston usually reports an average low-temperature of 64.2°F (17.9°C) during the month of August.

Heat index

August's average heat index is evaluated at a tropical 91.4°F (33°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

August through October, with an average relative humidity of 74%, are the least humid months in Evanston.

Rainfall

In August, in Evanston, Ohio, the rain falls for 13.6 days. Throughout August, 1.97" (50mm) of precipitation is accumulated. In Evanston, during the entire year, the rain falls for 150.9 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

May through October are months without snowfall in Evanston.

Daylight

In Evanston, the average length of the day in August is 13h and 39min.
On the first day of the month, sunrise is at 6:39 am and sunset at 8:49 pm. On the last day of August, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

Sunshine

In August, the average sunshine in Evanston is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Evanston. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

Is it hot in Evanston during August?

An average high-temperature, in August, in Evanston, is 83.8°F (28.8°C) and the average low-temperature is 64.2°F (17.9°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is evaluated at 91.4°F (33°C).

What is the least humid month in Evanston?

August through October, with an average relative humidity of 74%, are the least humid months in Evanston.

What is the average humidity in August in Evanston?

In August, the average relative humidity in Evanston, Ohio, is 74%.

How many days does it rain in August in Evanston?

In Evanston, in August, it is raining for 13.6 days, with typically 1.97" (50mm) of accumulated precipitation.

When it does not snow in Evanston?

In Evanston, Ohio, snow does not fall in May through October.

What is the average length of the day in August in Evanston?

In August, the average day length in Evanston, Ohio, is 13h and 39min.

When are sunrise and sunset in August in Evanston?

In August, on the first day of the month, sunrise is at 6:39 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

How many hours of sunshine does Evanston have in August?

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

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

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

What is the UV index reading in August in Evanston?

In August, the average daily maximum UV index in Evanston is 6. A UV Index estimate of 6 to 7 represents 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
Evanston, OH

Average temperature in August - Evanston, OH
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

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Average pressure in August
Evanston, OH

Average pressure in August - Evanston, OH
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Evanston, OH

Average wind speed in August - Evanston, OH
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in August
Evanston, OH

Average humidity in August - Evanston, OH
  • Average humidity in August: 74%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in August
Evanston, OH

Average rainfall in August - Evanston, OH
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in August
Evanston, OH

Average rainfall days in August - Evanston, OH
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in August
Evanston, OH

Average snowfall in August - Evanston, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Evanston, OH

Average snowfall days in August - Evanston, OH
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Evanston, OH

Average daylight in August / Average sunshine in August - Evanston, OH
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • 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 54min).

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Average sunshine days in August
Evanston, OH

Average sunshine days in August - Evanston, OH
  • Average sunshine days in August: 15 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in August
Evanston, OH

Average UV index in August - Evanston, OH
  • 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, November and December (UV index 2).

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Average cloud cover in August
Evanston, OH

Average cloud cover in August - Evanston, OH
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
Evanston, OH

Average visibility in August - Evanston, OH
  • 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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Evanston, Ohio, USA

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