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 shift into August uncovers an average high-temperature of a still moderately hot 83.3°F (28.5°C), subtly different from the previous month. Norristown usually reports an average low-temperature of 66°F (18.9°C) during the month of August.Heat index
In August, the average heat index is calculated to be a hot 89.6°F (32°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Heat index determinations are made taking into account the shade and light air movements. 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 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Norristown, the average relative humidity in August is 73%.Rainfall
In Norristown, in August, during 13.7 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Norristown, during the entire year, the rain falls for 138.2 days and collects up to 15.59" (396mm) of precipitation.Snowfall
In Norristown, snow does not fall in April, June through November.Daylight
In August, the average length of the day is 13h and 43min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:34 pm EDT.
Sunshine
The average sunshine in August is 10.2h.UV index
The months with the highest UV index in Norristown are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 6 during August leads to these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Norristown in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Norristown have in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the month with the highest UV index?
What is the UV index intensity in August in Norristown?
Average temperature in August
Norristown, PA
- 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 (36.7°F).
- Average low temperature in August: 66°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in August
Norristown, 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
Norristown, PA
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in August
Norristown, PA
- Average humidity in August: 73%
The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in August
Norristown, PA
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is July (1.89").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in August
Norristown, PA
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in August
Norristown, PA
- Average snowfall in August: 0"
The months with the highest snowfall are February and March (0.55").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in August
Norristown, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Norristown, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in August
Norristown, PA
- Average sunshine days in August: 14.8 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in August
Norristown, PA
- 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, March, November and December (UV index 2).
Average cloud cover in August
Norristown, PA
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Norristown, 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).
Norristown, Pennsylvania, USA
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