August weather forecastChambersburg, PA
August
Weather in August
August in Chambersburg, Pennsylvania welcomes the last full month of summer. If compared to the peak summer month of July, August shows a slight dip in the temperature and daylight hours. Despite the minor changes, August retains the summer atmosphere with its warm temperature. The town is bustling with summer social events and gatherings in this month. On the other hand, it also signifies the upcoming transition to the cooler autumn months.Temperature
In Chambersburg, August's average high-temperature stands at a still warm 81.7°F (27.6°C), closely related to the preceding month. Throughout August, an average low-temperature of 61.3°F (16.3°C) is experienced.Heat index
For August, the heat index is estimated at a tropical 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
The average relative humidity in August is 78%.Rainfall
In Chambersburg, in August, during 15.8 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 156 rainfall days, and 27.2" (691mm) of precipitation is accumulated.Snowfall
In Chambersburg, snow does not fall in June through September.Daylight
In Chambersburg, the average length of the day in August is 13h and 42min.On the first day of August, sunrise is at 6:09 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:43 pm EDT.
Sunshine
In August, the average sunshine is 10.1h.UV index
The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 5 suggests this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Chambersburg, PA
- Average high temperature in August: 81.7°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in August
Chambersburg, 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
Chambersburg, PA
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in August
Chambersburg, PA
- Average humidity in August: 78%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in August
Chambersburg, PA
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in August
Chambersburg, PA
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in August
Chambersburg, PA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Chambersburg, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Chambersburg, PA
- 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 24min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in August
Chambersburg, PA
- Average sunshine days in August: 13.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in August
Chambersburg, PA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Chambersburg, PA
- Average cloud cover in August: 35
The months with the most cloud cover are January, February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in August
Chambersburg, PA
- Average visibility in August: 5mi
The months with the highest visibility are April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, August, September and October (5mi).
