August weather forecastKeithsburg, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Keithsburg, Illinois, with temperature in the range of an average low of 63.5°F (17.5°C) and an average high of 81.7°F (27.6°C).Temperature
Keithsburg's transition from July to August introduces an average high-temperature of a still warm 81.7°F (27.6°C), marking an insignificant variation from the 82.2°F (27.9°C). The average temperature drops to a refreshing 63.5°F (17.5°C) during the night in the month of August.Heat index
August's mean heat index is calculated to be a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Heat index determinations are made taking into account the shade and light air movements. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in August in Keithsburg is 79%.Rainfall
In August, in Keithsburg, the rain falls for 14.3 days. Throughout August, 2.2" (56mm) of precipitation is accumulated. Throughout the year, in Keithsburg, there are 150.9 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
In Keithsburg, snow does not fall in May through September.Daylight
The average length of the day in August in Keithsburg is 13h and 46min.On the first day of August in Keithsburg, sunrise is at 6:00 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:37 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in August interprets into the following advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keithsburg, IL
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in August: 63.5°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 August
Keithsburg, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Keithsburg, IL
- Average wind speed in August: 6.8mph
The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Keithsburg, IL
- Average humidity in August: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Keithsburg, IL
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are January and December (1.46").
Average rainfall days in August
Keithsburg, IL
- Average rainfall days in August: 14.3 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in August
Keithsburg, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Keithsburg, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.8 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
Keithsburg, IL
- Average daylight in August: 13h and 48min
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 48min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Keithsburg, IL
- Average sunshine days in August: 13 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in August
Keithsburg, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Keithsburg, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in August
Keithsburg, 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).
