July weather forecast
Saint Augustine, IL

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Weather in July

July, like June, in Saint Augustine, Illinois, is a moderately hot summer month, with an average temperature varying between 64.9°F (18.3°C) and 82°F (27.8°C).

Temperature

In Saint Augustine, the peak average temperatures are observed in July, with a high of 82°F (27.8°C) and a low of 64.9°F (18.3°C).

Heat index

For most parts of July, the heat index is calculated to be a tropical 89.6°F (32°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

July is the most humid month, with an average relative humidity of 84%.

Rainfall

In July, the rain falls for 14.4 days. Throughout July, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 126 rainfall days, and 14.45" (367mm) of precipitation is accumulated.

Snowfall

In Saint Augustine, snow does not fall in May through September.

Daylight

In July, the average length of the day is 14h and 45min.
On the first day of the month, sunrise is at 5:34 am and sunset at 8:36 pm. On the last day of July, sunrise is at 5:58 am and sunset at 8:17 pm CDT.

Sunshine

June and July, with an average of 10.1h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Augustine. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are the warmest months in Saint Augustine?

July is the month when Saint Augustine's temperatures reach their peak, with averages of 82°F (27.8°C) and lows of 64.9°F (18.3°C).

What is the usual temperature for Saint Augustine in July?

In Saint Augustine, 82°F (27.8°C) is the average high-temperature and 64.9°F (18.3°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 89.6°F (32°C).

What is the most humid month in Saint Augustine?

July is the most humid month, with an average relative humidity of 84%.

What is the average humidity in July in Saint Augustine?

The average relative humidity in July in Saint Augustine is 84%.

How much does it rain in Saint Augustine in July?

In Saint Augustine, in July, during 14.4 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow in Saint Augustine?

In Saint Augustine, snow does not fall in May through September.

How many hours of daylight does Saint Augustine have in July?

In July, the average day length in Saint Augustine is 14h and 45min.

What time are sunrise and sunset in July in Saint Augustine?

On the first day of July in Saint Augustine, sunrise is at 5:34 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:17 pm CDT.

What is the month with the most sunshine in Saint Augustine?

June and July, with an average of 10.1h of sunshine, are months with the most sunshine in Saint Augustine.

How many hours of sunshine does Saint Augustine have in July?

In Saint Augustine, the average sunshine duration in July is 10.1h.

When is the highest UV index in Saint Augustine?

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

What is the UV index intensity in July in Saint Augustine?

The average daily maximum UV index in July in Saint Augustine is 6. A UV Index reading 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 July
Saint Augustine, IL

Average temperature in July - Saint Augustine, IL
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in July
Saint Augustine, IL

Average pressure in July - Saint Augustine, IL
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Saint Augustine, IL

Average wind speed in July - Saint Augustine, IL
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in July
Saint Augustine, IL

Average humidity in July - Saint Augustine, IL
  • Average humidity in July: 84%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Saint Augustine, IL

Average rainfall in July - Saint Augustine, IL
  • Average rainfall in July: 1.54"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").

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Average rainfall days in July
Saint Augustine, IL

Average rainfall days in July - Saint Augustine, IL
  • Average rainfall days in July: 14.4 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in July
Saint Augustine, IL

Average snowfall in July - Saint Augustine, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Saint Augustine, IL

Average snowfall days in July - Saint Augustine, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Saint Augustine, IL

Average daylight in July / Average sunshine in July - Saint Augustine, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in July
Saint Augustine, IL

Average sunshine days in July - Saint Augustine, IL
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in July
Saint Augustine, IL

Average UV index in July - Saint Augustine, IL
  • Average UV index in July: 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 July
Saint Augustine, IL

Average cloud cover in July - Saint Augustine, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in July
Saint Augustine, IL

Average visibility in July - Saint Augustine, IL
  • Average visibility in July: 5mi

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

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Saint Augustine, Illinois, USA

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