August weather forecastGalesburg, IL
August
Weather in August
August, the last month of the summer in Galesburg, is also a moderately hot month, with an average temperature fluctuating between 80.6°F (27°C) and 63.3°F (17.4°C).Temperature
In August, Galesburg experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 81.1°F (27.3°C) in July to a still moderately hot 80.6°F (27°C). Galesburg records a mean low-temperature of 63.3°F (17.4°C) in August.Heat index
The heat index value during August is estimated at a hot 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
In Galesburg, the average relative humidity in August is 81%.Rainfall
In Galesburg, Illinois, in August, it is raining for 10.1 days, with typically 0.83" (21mm) of accumulated precipitation. In Galesburg, Illinois, during the entire year, the rain falls for 109.9 days and collects up to 11.14" (283mm) of precipitation.Snowfall
In Galesburg, Illinois, snow does not fall in May through September.Daylight
In August, the average length of the day in Galesburg is 13h and 46min.On the first day of August in Galesburg, sunrise is at 5:58 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm CDT.
Sunshine
In Galesburg, the average sunshine in August is 9.8h.UV index
The average daily maximum UV index in August in Galesburg is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during August leads to these advisories:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Galesburg, IL
- Average high temperature in August: 80.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in August: 63.3°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 (17.4°F).
Average pressure in August
Galesburg, 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 (29.91"Hg).
Average wind speed in August
Galesburg, IL
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Galesburg, IL
- Average humidity in August: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Galesburg, IL
- Average rainfall in August: 0.83"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in August
Galesburg, IL
- Average rainfall days in August: 10.1 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in August
Galesburg, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Galesburg, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.8 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
Galesburg, 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 month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Galesburg, IL
- Average sunshine days in August: 16.8 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in August
Galesburg, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Galesburg, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in August
Galesburg, IL
- Average visibility in August: 6mi
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).
