August weather forecastGettysburg, PA
August
Weather in August
August is characterized by slightly lower temperatures falling from 64°F (17.8°C) to 81.3°F (27.4°C), compared to July, providing a refreshing relief from the peak of the summer heat. Rainfall continues to play a significant role providing 1.42" (36mm) over the month. Daylight hours begin to decline gradually, heralding the approaching fall in the coming months. Wind speeds maintain their calm summer steadiness while the UV index drops back down to 5. Despite these changes, August remains a predominantly sunny and dry month.Temperature
With the arrival of August, Gettysburg's average high-temperature registers at a still moderately hot 81.3°F (27.4°C), indicating a subtle variation from the previous month. Gettysburg experiences an average temperature drop to a refreshing 62.2°F (16.8°C) during August nights.Heat index
In August, the average heat index is computed to be a hot 86°F (30°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In August, the average relative humidity is 78%.Rainfall
In Gettysburg, in August, during 14.6 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Gettysburg, during the entire year, the rain falls for 125 days and collects up to 12.13" (308mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Gettysburg, the average length of the day in August is 13h and 41min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:41 pm EDT.
Sunshine
In August, the average sunshine is 10.2h.UV index
In August, the average daily maximum UV index in Gettysburg is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. 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
Gettysburg, PA
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.6°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 (22.6°F).
Average pressure in August
Gettysburg, PA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Gettysburg, PA
- Average wind speed in August: 4.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in August
Gettysburg, PA
- Average humidity in August: 78%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in August
Gettysburg, PA
- Average rainfall in August: 1.42"
The wettest month (with the highest rainfall) is July (1.46").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in August
Gettysburg, PA
- Average rainfall days in August: 14.6 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5 days).
Average snowfall in August
Gettysburg, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Gettysburg, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Gettysburg, PA
- 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: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Gettysburg, PA
- Average sunshine days in August: 13.6 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is August (13.6 days).
Average UV index in August
Gettysburg, PA
- Average UV index in August: 5
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Gettysburg, PA
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Gettysburg, PA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
