August weather forecast
Springfield, IL

The Abraham Lincoln House in Springfield, Illinois
The Abraham Lincoln House in Springfield, Illinois

Weather in August

The last month of the summer, August, is also a moderately hot month in Springfield, Illinois, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C).

Temperature

In August, the average high-temperature is practically the same as in July - a still moderately hot 81.9°F (27.7°C). In August, the average low-temperature is 64°F (17.8°C).

Heat index

The average heat index in August is computed to be a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Springfield, the average relative humidity in August is 81%.

Rainfall

In Springfield, in August, during 14.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 140.2 rainfall days, and 23.27" (591mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Springfield.

Daylight

In August, the average length of the day in Springfield is 13h and 41min.
On the first day of August, sunrise is at 5:57 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:32 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Springfield, Illinois. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Springfield?

In August, in Springfield, Illinois, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in August in Springfield?

The average relative humidity in August is 81%.

How many days does it rain in August in Springfield?

In August, in Springfield, the rain falls for 14.8 days. Throughout August, 2.28" (58mm) of precipitation is accumulated.

When it does not snow in Springfield?

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

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

The average day length in August is 13h and 41min.

When are sunrise and sunset in August in Springfield?

In August, on the first day of the month, sunrise is at 5:57 am and sunset at 8:12 pm. On the last day of the month, in Springfield, Illinois, sunrise is at 6:25 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Springfield have in August?

The average sunshine duration in August in Springfield, Illinois, is 9.9h.

What is the month with the highest UV index in Springfield?

The months with the highest UV index in Springfield, Illinois, are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Springfield?

In Springfield, Illinois, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Springfield, IL

Average temperature in August - Springfield, IL
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in August
Springfield, IL

Average pressure in August - Springfield, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Springfield, IL

Average wind speed in August - Springfield, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in August
Springfield, IL

Average humidity in August - Springfield, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Springfield, IL

Average rainfall in August - Springfield, IL
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is December (1.18").

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Average rainfall days in August
Springfield, IL

Average rainfall days in August - Springfield, IL
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in August
Springfield, IL

Average snowfall in August - Springfield, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Springfield, IL

Average snowfall days in August - Springfield, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.5 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
Springfield, IL

Average daylight in August / Average sunshine in August - Springfield, IL
  • Average daylight in August: 13h and 41min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in August: 9h and 54min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in August
Springfield, IL

Average sunshine days in August - Springfield, IL
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in August
Springfield, IL

Average UV index in August - Springfield, IL
  • Average UV index in August: 6

The months with the highest UV index are 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
Springfield, IL

Average cloud cover in August - Springfield, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in August
Springfield, IL

Average visibility in August - Springfield, IL
  • Average visibility in August: 5mi

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

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