United StatesThe weather in August in Hackettstown
It's warm in August in Hackettstown with an average temperature of 29°C. Temperatures this month range from a low of 27°C to a high of 30°C. At night, you can expect temperatures between 16°C and 19°C.
Looking for sun? August isn’t a good month to be in Hackettstown. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Hackettstown, New Jersey. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2022, Hackettstown reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 17°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 25°C.
Rainfall amount
In August, there is an average of 127 mm of precipitation, spread over 14 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in August for Hackettstown
Click on any day in August to get detailed info about the usual weather on that day in Hackettstown. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Hackettstown | New York | |
|---|---|---|
| Average temperature | 29°C | 30°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 16°C | -5°C |
| Total precipitation | 127 mm | 79 mm |
| Rainy days | 14 days | 13 days |
Start of August
The month of August starts in Hackettstown with hot temps, averaging around 30°C during the day and nights around 18°C.
Mid August
By mid-August, daytime temps stay steady at around 30°C, with nights around 19°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of August
By the end of August, the average daytime temperature in Hackettstown is around 28°C, while nighttime temps are about 17°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Hackettstown for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in August in Hackettstown, New Jersey. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Hackettstown
Temperature in August in Hackettstown over the years
Precipitation charts
These charts show the average amount of precipitation in August in Hackettstown, New Jersey. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Hackettstown
Total precipitation in August in Hackettstown over the years
Daily UV index in August in Hackettstown
This chart shows the average daily UV index in August in Hackettstown, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Hackettstown
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Average weather in Hackettstown by month
Click on a month below to see detailed weather info for Hackettstown. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.