August weather forecastHarley Siding, IN
August
Weather in August
The last month of the summer, August, is another warm month in Harley Siding, Indiana, with an average temperature fluctuating between 62.2°F (16.8°C) and 79.7°F (26.5°C).Temperature
The average high-temperature during August is a still warm 79.7°F (26.5°C), almost matching the conditions of the preceding month. Throughout August, Harley Siding witnesses a nighttime temperature average of 62.2°F (16.8°C).Humidity
In Harley Siding, Indiana, the average relative humidity in August is 83%.Rainfall
In Harley Siding, in August, it is raining for 13.5 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 143.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
In Harley Siding, snow does not fall in May through September.Daylight
In August, the average length of the day in Harley Siding is 13h and 44min.On the first day of the month, sunrise is at 6:44 am and sunset at 9:01 pm. On the last day of August, sunrise is at 7:13 am and sunset at 8:19 pm EDT.
Sunshine
The average sunshine in August is 9.2h.UV index
The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 5 in August translates into these instructions:
Exercise prevention - Warding off sunburn is urged. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Harley Siding, IN
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in August
Harley Siding, IN
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Harley Siding, IN
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in August
Harley Siding, IN
- Average humidity in August: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Harley Siding, IN
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days in August
Harley Siding, IN
- Average rainfall days in August: 13.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).
Average snowfall in August
Harley Siding, IN
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Harley Siding, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Harley Siding, IN
- Average daylight in August: 13h and 42min
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 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Harley Siding, IN
- Average sunshine days in August: 13.1 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in August
Harley Siding, IN
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Harley Siding, IN
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility in August
Harley Siding, IN
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





