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
The arrival of August marks a slight shift to an average high-temperature of a still warm 82°F (27.8°C) from July's 82.8°F (28.2°C). August nights in Smithfield cool down to an average low-temperature of 63.7°F (17.6°C).Heat index
During August, the heat index is evaluated at a hot 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
The average relative humidity in August is 80%.Rainfall
In Smithfield, Illinois, in August, it is raining for 13.2 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, in Smithfield, Illinois, there are 131.7 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
In Smithfield, snow does not fall in May through September.Daylight
In Smithfield, the average length of the day in August is 13h and 44min.On the first day of August in Smithfield, sunrise is at 5:59 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:34 pm CDT.
Sunshine
In August, the average sunshine is 9.9h.UV index
The months with the highest UV index in Smithfield are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the average August temperature in Smithfield?
What is the average humidity in August in Smithfield?
How many days does it rain in August in Smithfield?
When it does not snow in Smithfield?
How many hours of daylight does Smithfield have in August?
When is the sunrise / sunset in August in Smithfield?
How long on average sun shines in August in Smithfield?
What are the months with the highest UV index in Smithfield?
What is the UV index reading in August in Smithfield?
Average temperature in August
Smithfield, IL
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°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 (19.4°F).
Average pressure in August
Smithfield, 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
Smithfield, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in August
Smithfield, 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
Smithfield, IL
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in August
Smithfield, IL
- Average rainfall days in August: 13.2 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in August
Smithfield, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Smithfield, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.4 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
Smithfield, 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: 9h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Smithfield, IL
- Average sunshine days in August: 14.6 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in August
Smithfield, 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
Smithfield, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in August
Smithfield, 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).
Smithfield, Illinois, USA
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