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
Green Rock sees the arrival of August with an average high-temperature of a still warm 80.6°F (27°C), indicating a subtle variation from July. An average minimum temperature of 62.4°F (16.9°C) marks the month of August in Green Rock.Heat index
During August, the heat index is appraised at a tropical 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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
In Green Rock, the average relative humidity in August is 80%.Rainfall
In August, in Green Rock, the rain falls for 10.7 days. Throughout August, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Green Rock, there are 99.4 rainfall days, and 9.57" (243mm) of precipitation is accumulated.Snowfall
In Green Rock, snow does not fall in May through August.Daylight
In Green Rock, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:35 pm CDT.
Sunshine
The average sunshine in August in Green Rock, Illinois, is 9.9h.UV index
In Green Rock, Illinois, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, a daily UV index of 5 turns into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Green Rock in August?
What is the average humidity in August in Green Rock?
How many days does it rain in August in Green Rock?
When it does not snow in Green Rock?
Does it snow in Green Rock in August?
How many hours of daylight does Green Rock have in August?
When are sunrise and sunset in August in Green Rock?
How long on average sun shines in August in Green Rock?
How high is the UV index in August in Green Rock?
Average temperature in August
Green Rock, IL
- Average high temperature in August: 80.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in August
Green Rock, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Green Rock, IL
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Green Rock, IL
- Average humidity in August: 80%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Green Rock, IL
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in August
Green Rock, IL
- Average rainfall days in August: 10.7 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in August
Green Rock, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in August
Green Rock, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Green Rock, 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 12min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Green Rock, IL
- Average sunshine days in August: 17.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in August
Green Rock, IL
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Green Rock, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Green Rock, IL
- 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).
Green Rock, Illinois, USA
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