August weather forecastLetts, IN
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Letts, Indiana, with an average temperature varying between 63.5°F (17.5°C) and 82°F (27.8°C).Temperature
Letts ushers in August with an average high-temperature of a still warm 82°F (27.8°C), showing a close resemblance to the previous month. In the month of August, Letts experiences an average low-temperature of 63.5°F (17.5°C).Heat index
For most parts of August, the heat index is estimated at a hot 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
The average relative humidity in August is 79%.Rainfall
In Letts, in August, during 12.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 137.6 rainfall days, and 17.99" (457mm) of precipitation is accumulated.Snowfall
In Letts, snow does not fall in May through September.Daylight
In Letts, the average length of the day in August is 13h and 40min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:53 pm. On the last day of August, sunrise is at 7:10 am and sunset at 8:14 pm EDT.
Sunshine
The average sunshine in August is 9.6h.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: A maximum high daily UV index of 6 during August translates into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Letts, IN
- Average high temperature in August: 82°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in August: 63.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in August
Letts, IN
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Letts, IN
- Average wind speed in August: 5.4mph
The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in August
Letts, IN
- Average humidity in August: 79%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Letts, IN
- Average rainfall in August: 1.38"
The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in August
Letts, IN
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in August
Letts, IN
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Letts, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.3 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
Letts, IN
- Average daylight in August: 13h and 42min
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: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Letts, IN
- Average sunshine days in August: 15.4 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in August
Letts, IN
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Letts, IN
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Letts, IN
- 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).





