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 commencement of August records an average high-temperature of a still warm 83.3°F (28.5°C), barely varying from July's 85.6°F (29.8°C). Mercersville, in August, witnesses an average low-temperature of 62.6°F (17°C).Heat index
August's average heat index is appraised at a hot 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Mercersville, the average relative humidity in August is 76%.Rainfall
In Mercersville, in August, it is raining for 16.3 days, with typically 2.91" (74mm) of accumulated precipitation. In Mercersville, Maryland, during the entire year, the rain falls for 162.4 days and collects up to 30.16" (766mm) of precipitation.Snowfall
In Mercersville, snow does not fall in May through September.Daylight
In Mercersville, the average length of the day in August is 13h and 40min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:43 pm EDT.
Sunshine
The average sunshine in August is 10.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the UV index of 6 transforms into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Mercersville have in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
When is the highest UV index?
How high is the UV index in August?
Average temperature in August
Mercersville, MD
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in August
Mercersville, MD
- 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
Mercersville, MD
- Average wind speed in August: 4.5mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in August
Mercersville, MD
- Average humidity in August: 76%
The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in August
Mercersville, MD
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in August
Mercersville, MD
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in August
Mercersville, MD
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mercersville, MD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.8 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
Mercersville, MD
- 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 24min).
- Average sunshine in August: 10h and 1min
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 42min).
Average sunshine days in August
Mercersville, MD
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is April (11 days).
Average UV index in August
Mercersville, MD
- 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
Mercersville, MD
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Mercersville, MD
- Average visibility in August: 6mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Mercersville, Maryland, USA
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