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
As Williamstown transitions into August, the average high-temperature stands at a still warm 83.3°F (28.5°C), offering little variation from the preceding month. In August, Williamstown's temperature tends to fall to an average low of 67.6°F (19.8°C) during the night.Heat index
The heat index value for August is evaluated at a hot 89.6°F (32°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Note that heat index values are valued for light wind and location in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Williamstown, New Jersey, the average relative humidity in August is 75%.Rainfall
In August, the rain falls for 14.7 days. Throughout August, 2.91" (74mm) of precipitation is accumulated. In Williamstown, during the entire year, the rain falls for 154.9 days and collects up to 30.47" (774mm) of precipitation.Snowfall
In Williamstown, snow does not fall in June through October.Daylight
In Williamstown, the average length of the day in August is 13h and 41min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:32 pm EDT.
Sunshine
In Williamstown, the average sunshine in August is 10.3h.UV index
The months with the highest UV index in Williamstown are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 6 during August morphs into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August in Williamstown?
What is the average humidity in August in Williamstown?
How much does it rain in Williamstown in August?
When it does not snow in Williamstown?
How many hours of daylight does Williamstown have in August?
What time are sunrise and sunset in August in Williamstown?
How many hours of sunshine does Williamstown have in August?
What are the months with the highest UV index in Williamstown?
What is the UV index intensity in August in Williamstown?
Average temperature in August
Williamstown, NJ
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in August: 67.6°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in August
Williamstown, NJ
- Average pressure in August: 29.98"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
Williamstown, NJ
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Williamstown, NJ
- Average humidity in August: 75%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Williamstown, NJ
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in August
Williamstown, NJ
- Average rainfall days in August: 14.7 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in August
Williamstown, NJ
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Williamstown, NJ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Williamstown, NJ
- 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in August
Williamstown, NJ
- Average sunshine days in August: 14 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in August
Williamstown, NJ
- 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
Williamstown, NJ
- Average cloud cover in August: 30
The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in August
Williamstown, NJ
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Williamstown, New Jersey, USA
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