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 transition into August marks the average high-temperature at a still moderately hot 81°F (27.2°C), differing minimally from July's 83.5°F (28.6°C). During the nights in August, Bethlehem observes an average low-temperature of 61.5°F (16.4°C).Heat index
For most parts of August, the heat index is estimated at a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in August is 77%.Rainfall
In Bethlehem, in August, during 15.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 153 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
In Bethlehem, snow does not fall in June through September.Daylight
In August, the average length of the day in Bethlehem, Pennsylvania, is 13h and 44min.On the first day of August in Bethlehem, Pennsylvania, sunrise is at 5:59 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:34 pm EDT.
Sunshine
In August, the average sunshine in Bethlehem is 9.9h.UV index
The average daily maximum UV index in August in Bethlehem is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What are August temperatures in Bethlehem?
What is the average humidity in August in Bethlehem?
How many days does it rain in August in Bethlehem?
When it does not snow in Bethlehem?
How many hours of daylight does Bethlehem have in August?
What time are sunrise and sunset in August in Bethlehem?
How long on average sun shines in August in Bethlehem?
What is the UV index reading in August in Bethlehem?
Average temperature in August
Bethlehem, PA
- Average high temperature in August: 81°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in August: 61.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in August
Bethlehem, PA
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Bethlehem, PA
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in August
Bethlehem, PA
- Average humidity in August: 77%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in August
Bethlehem, PA
- Average rainfall in August: 2.76"
The wettest month (with the highest rainfall) is July (2.91").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in August
Bethlehem, PA
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in August
Bethlehem, PA
- Average snowfall in August: 0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Bethlehem, PA
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Bethlehem, 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 18min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in August
Bethlehem, PA
- Average sunshine days in August: 13.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).
Average UV index in August
Bethlehem, 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, March, November and December (UV index 2).
Average cloud cover in August
Bethlehem, PA
- Average cloud cover in August: 35
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in August
Bethlehem, PA
- Average visibility in August: 5mi
The months with the highest visibility are April, June and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September, October and December (5mi).
Bethlehem, Pennsylvania, USA
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