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
As Macomb, Illinois, steps into August, the average high-temperature holds at a still warm 81.9°F (27.7°C), hinting at a minor fluctuation from the prior month. Macomb experiences a consistent average temperature of 63.7°F (17.6°C) throughout the nights in August.Heat index
In August, the average heat index is estimated at a hot 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Realize that the values for the heat index are set for shaded places and light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Macomb, the average relative humidity in August is 80%.Rainfall
In Macomb, in August, during 11.1 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Macomb, during the entire year, the rain falls for 122.7 days and collects up to 17.8" (452mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 44min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:17 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:35 pm CDT.
Sunshine
The average sunshine in August is 10h.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 average individuals.Note: The maximum daily UV index of 6 in August converts into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
How many days does it rain in August in Macomb?
When it does not snow?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the month with the highest UV index?
How high is the UV index in August?
Average temperature in August
Macomb, IL
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in August: 63.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in August
Macomb, 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
Macomb, IL
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in August
Macomb, IL
- Average humidity in August: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Macomb, IL
- Average rainfall in August: 1.42"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in August
Macomb, IL
- Average rainfall days in August: 11.1 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in August
Macomb, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Macomb, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.6 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
Macomb, IL
- Average daylight in August: 13h 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 August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Macomb, IL
- Average sunshine days in August: 17.3 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in August
Macomb, IL
- Average UV index in August: 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 August
Macomb, 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
Macomb, 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).
Macomb, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location