August weather forecast
Mount Joy, PA

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Weather in August

The last month of the summer, August, is another warm month in Mount Joy, Pennsylvania, with an average temperature varying between 80.8°F (27.1°C) and 62.1°F (16.7°C).

Temperature

Mount Joy marks the onset of August with an average high-temperature of a still warm 80.8°F (27.1°C), a subtle shift from July's 82.8°F (28.2°C). Mount Joy records a steady low-temperature average of 62.1°F (16.7°C) during August.

Heat index

August's average heat index is estimated at a tropical 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The average relative humidity in August is 79%.

Rainfall

August is the month with the most rainfall. Rain falls for 15 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

May through September are months without snowfall in Mount Joy.

Daylight

The average length of the day in August is 13h and 43min.
On the first day of August, sunrise is at 6:04 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:38 pm EDT.

Sunshine

In Mount Joy, the average sunshine in August is 10h.

UV index

In Mount Joy, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What is the usual temperature for Mount Joy in August?

The average high-temperature, in August, in Mount Joy, is 80.8°F (27.1°C), while the average low-temperature is 62.1°F (16.7°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

What is the rainiest month?

August is the month with the most rainfall. Rain falls for 15 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in August?

In Mount Joy, in August, during 15 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

In Mount Joy, snow does not fall in May through September.

What is the average length of the day in August?

In Mount Joy, the average day length in August is 13h and 43min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:38 pm EDT.

How long on average sun shines in August in Mount Joy?

In August, the average sunshine duration is 10h.

How high is the UV index in August?

In Mount Joy, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Mount Joy, PA

Average temperature in August - Mount Joy, PA
  • Average high temperature in August: 80.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in August
Mount Joy, PA

Average pressure in August - Mount Joy, PA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Mount Joy, PA

Average wind speed in August - Mount Joy, PA
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in August
Mount Joy, PA

Average humidity in August - Mount Joy, PA
  • Average humidity in August: 79%

The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in August
Mount Joy, PA

Average rainfall in August - Mount Joy, PA
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in August
Mount Joy, PA

Average rainfall days in August - Mount Joy, PA
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is May (15.7 days).
The months with the least rainy days are January and November (6.6 days).

Average snowfall in August
Mount Joy, PA

Average snowfall in August - Mount Joy, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Mount Joy, PA

Average snowfall days in August - Mount Joy, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Mount Joy, PA

Average daylight in August / Average sunshine in August - Mount Joy, PA
  • Average daylight in August: 13h and 4min

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 0min

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 30min).

Average sunshine days in August
Mount Joy, PA

Average sunshine days in August - Mount Joy, PA
  • Average sunshine days in August: 13.7 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in August
Mount Joy, PA

Average UV index in August - Mount Joy, 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
Mount Joy, PA

Average cloud cover in August - Mount Joy, PA
  • Average cloud cover in August: 33

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Mount Joy, PA

Average visibility in August - Mount Joy, 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).

Mount Joy, Pennsylvania, USA

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