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 records an average high-temperature of a still warm 82.6°F (28.1°C), closely related to the 83.7°F (28.7°C) observed in July. In Sullivan, August nights cool down to an average of 64.8°F (18.2°C).Heat index
August's mean heat index is estimated at a hot 89.6°F (32°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Sullivan, the average relative humidity in August is 80%.Rainfall
In Sullivan, during August, the rain falls for 13.6 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, in Sullivan, there are 150.1 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in August in Sullivan is 13h and 39min.On the first day of the month, sunrise is at 6:50 am and sunset at 9:00 pm. On the last day of August, sunrise is at 7:18 am and sunset at 8:21 pm EDT.
Sunshine
In August, the average sunshine in Sullivan, Indiana, is 9.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Sullivan, Indiana. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In August, an average UV index of 6 transforms into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. 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. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
How hot is August in Sullivan?
What is the average humidity in August in Sullivan?
How much does it rain in Sullivan in August?
When it does not snow in Sullivan?
How many hours of daylight does Sullivan have in August?
When is the sunrise / sunset in August in Sullivan?
How long on average sun shines in August in Sullivan?
When is the highest UV index in Sullivan?
How high is the UV index in August in Sullivan?
Average temperature in August
Sullivan, IN
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in August: 64.8°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in August
Sullivan, IN
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Sullivan, IN
- Average wind speed in August: 5.8mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
Sullivan, IN
- Average humidity in August: 80%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Sullivan, IN
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Sullivan, IN
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in August
Sullivan, IN
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Sullivan, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Sullivan, IN
- 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: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in August
Sullivan, IN
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in August
Sullivan, IN
- 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
Sullivan, IN
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Sullivan, IN
- 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).
Sullivan, Indiana, USA
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