August weather forecastVandalia, IN
August
Weather in August
August, the last month of the summer in Vandalia, is another warm month, with an average temperature varying between 63.7°F (17.6°C) and 82.2°F (27.9°C).Temperature
The advent of August signifies a minor shift to an average high-temperature of a still warm 82.2°F (27.9°C), aligning closely with July. Throughout the month of August, Vandalia witnesses an average low-temperature of 63.7°F (17.6°C).Heat index
August's average heat index is computed to be a hot 89.6°F (32°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Heat index determinations are made taking into account the shade and light air movements. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In Vandalia, the average relative humidity in August is 80%.Rainfall
In Vandalia, in August, during 13.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 154.9 rainfall days, and 26.18" (665mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 40min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:59 pm. On the last day of August, in Vandalia, Indiana, sunrise is at 7:15 am and sunset at 8:19 pm EDT.
Sunshine
In August, the average sunshine is 9.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Vandalia, IN
- Average high temperature in August: 82.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in August: 63.7°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 (22.5°F).
Average pressure in August
Vandalia, 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
Vandalia, IN
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in August
Vandalia, IN
- Average humidity in August: 80%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Vandalia, IN
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in August
Vandalia, IN
- Average rainfall days in August: 13.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in August
Vandalia, IN
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Vandalia, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.1 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
Vandalia, 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 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in August
Vandalia, IN
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in August
Vandalia, 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 and December (UV index 2).
Average cloud cover in August
Vandalia, IN
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Vandalia, IN
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
