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 brings an average high-temperature of a still warm 83.7°F (28.7°C), subtly diverging from July's 84.7°F (29.3°C). Otterville's average low-temperature during August nights is observed to be a refreshing 65.5°F (18.6°C).Heat index
During August, the heat index is evaluated at a tropical 93.2°F (34°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Remember that heat index calculations are made for conditions in the shade with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In August, the average relative humidity in Otterville is 78%.Rainfall
In Otterville, during August, the rain falls for 13 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Otterville, during the entire year, the rain falls for 136.5 days and collects up to 23.11" (587mm) of precipitation.Snowfall
April through October are months without snowfall in Otterville.Daylight
In August, the average length of the day in Otterville is 13h and 39min.On the first day of August, sunrise is at 6:02 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:33 pm CDT.
Sunshine
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 in Otterville, Illinois. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In August, an average UV index of 6 transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
How hot does it get in Otterville in August?
What is the average humidity in August in Otterville?
How many days does it rain in August in Otterville?
When it does not snow in Otterville?
What is the average length of the day in August in Otterville?
When is the sunrise / sunset in August in Otterville?
How many hours of sunshine does Otterville have in August?
What are the months with the highest UV index in Otterville?
How high is the UV index in August in Otterville?
Average temperature in August
Otterville, IL
- Average high temperature in August: 83.7°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 (35.6°F).
- Average low temperature in August: 65.5°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in August
Otterville, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Otterville, IL
- Average wind speed in August: 5.8mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in August
Otterville, IL
- Average humidity in August: 78%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Otterville, IL
- Average rainfall in August: 2.52"
The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in August
Otterville, IL
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in August
Otterville, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Otterville, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.2 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
Otterville, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in August
Otterville, IL
- Average sunshine days in August: 15.1 days
The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and June (12.3 days).
Average UV index in August
Otterville, 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
Otterville, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).
Average visibility in August
Otterville, 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).
Otterville, Illinois, USA
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