Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July tends to be the warmest month, with temperatures averaging a daily high of 82°F (27.8°C) and a low of 64.9°F (18.3°C).Heat index
The heat index for July is calculated to be a tropical 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
With an average relative humidity of 84%, July is the most humid month in Saint Augustine.Rainfall
In Saint Augustine, in July, during 14.4 rainfall days, 1.54" (39mm) of precipitation is typically 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 Saint Augustine, the average length of the day in July is 14h and 45min.On the first day of July, 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.
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. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 6 in July translates into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
What is the average July temperature?
What is the most humid month?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Saint Augustine have in July?
What time are sunrise and sunset in July?
What are the months with the most sunshine?
How long on average sun shines in July?
What are the months with the highest UV index?
What is the UV index reading in July?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Saint Augustine, Illinois, USA
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