August weather forecastWilliamstown, IN
August
Weather in August
The last month of the summer, August, is another warm month in Williamstown, Indiana, with an average temperature fluctuating between 81.3°F (27.4°C) and 63.1°F (17.3°C).Temperature
August's arrival shows an average high-temperature of a still moderately hot 81.3°F (27.4°C), hardly different from the previous month. During August nights, Williamstown records an average temperature of 63.1°F (17.3°C).Heat index
For August, the heat index is calculated to be a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In August, the average relative humidity in Williamstown is 80%.Rainfall
In Williamstown, in August, during 13.9 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 161.3 rainfall days, and 31.26" (794mm) of precipitation is accumulated.Snowfall
In Williamstown, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 40min.On the first day of August, sunrise is at 6:42 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 8:13 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during August translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Williamstown, IN
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in August
Williamstown, 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
Williamstown, IN
- Average wind speed in August: 5.6mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in August
Williamstown, IN
- Average humidity in August: 80%
The months with the highest relative humidity are January and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Williamstown, IN
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in August
Williamstown, IN
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in August
Williamstown, IN
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Williamstown, IN
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Williamstown, 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 24min).
- Average sunshine in August: 9h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Williamstown, IN
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in August
Williamstown, 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
Williamstown, IN
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Williamstown, 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).
