Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The transition from July to August sees average high-temperatures adjusting to a still warm 79.7°F (26.5°C), from a not significantly different 81°F (27.2°C). In August, the average low-temperature in Blackstone records at a refreshing 62.2°F (16.8°C) during the nights.Humidity
In Blackstone, the average relative humidity in August is 84%.Rainfall
In Blackstone, in August, during 16.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Blackstone, during the entire year, the rain falls for 145 days and collects up to 25.08" (637mm) of precipitation.Snowfall
May through September are months without snowfall in Blackstone.Daylight
In August, the average length of the day in Blackstone is 13h and 46min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:10 pm. On the last day of August, in Blackstone, sunrise is at 6:21 am and sunset at 7:28 pm CDT.
Sunshine
The average sunshine in August in Blackstone is 9.8h.UV index
In Blackstone, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August in Blackstone?
What is the average humidity in August in Blackstone?
How much does it rain in Blackstone in August?
When it does not snow in Blackstone?
What is the average length of the day in August in Blackstone?
What time are sunrise and sunset in August in Blackstone?
How long on average sun shines in August in Blackstone?
What is the UV index intensity in August in Blackstone?
Average temperature in August
Blackstone, IL
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in August
Blackstone, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Blackstone, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Blackstone, IL
- Average humidity in August: 84%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Blackstone, IL
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in August
Blackstone, IL
- Average rainfall days in August: 16.4 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Blackstone, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Blackstone, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Blackstone, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Blackstone, IL
- Average sunshine days in August: 11.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in August
Blackstone, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Blackstone, IL
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in August
Blackstone, 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).
Blackstone, Illinois, USA
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