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
During August, the average high-temperature is a still warm 83.3°F (28.5°C), maintaining a close resemblance to that of the preceding month. August nights experience a consistent temperature drop to an enjoyable 65.7°F (18.7°C).Heat index
August's mean heat index is evaluated at a tropical 91.4°F (33°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. 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 are of high significance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The months with the highest humidity in Salem are May, July and August, with an average relative humidity of 80%.Rainfall
In Salem, during August, the rain falls for 11.4 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Salem, during the entire year, the rain falls for 123.2 days and collects up to 15.08" (383mm) of precipitation.Snowfall
May through October are months without snowfall in Salem.Daylight
In Salem, the average length of the day in August is 13h and 37min.On the first day of August, sunrise is at 5:58 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:26 pm CDT.
Sunshine
In Salem, the average sunshine in August is 10.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
Is it hot in Salem during August?
What are the most humid months in Salem?
What is the average humidity in August in Salem?
How many days does it rain in August in Salem?
When it does not snow in Salem?
What is the average length of the day in August in Salem?
What time are sunrise and sunset in August in Salem?
How long on average sun shines in August in Salem?
What is the month with the highest UV index in Salem?
How high is the UV index in August in Salem?
Average temperature in August
Salem, IL
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in August
Salem, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Salem, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in August
Salem, IL
- Average humidity in August: 80%
The months with the highest relative humidity are May, July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Salem, IL
- Average rainfall in August: 1.22"
The wettest month (with the highest rainfall) is April (2.01").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in August
Salem, IL
- Average rainfall days in August: 11.4 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in August
Salem, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Salem, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.1 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
Salem, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Salem, IL
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in August
Salem, IL
- Average UV index in August: 6
The months with the highest UV index are May, 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
Salem, IL
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in August
Salem, 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).
Salem, Illinois, USA
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