United StatesThe climate of Hackettstown
The current climate in Hackettstown features temperatures ranging from a high of 30°C to a low of 3°C throughout the year. The average yearly temperature is around 18°C. At night, temperatures in the colder months average around -7°C and in the warmer months around 18°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Hackettstown, New Jersey.
Temperature records
The highest temperature recorded in Hackettstown in recent years was 36°C in August 2022. The lowest daytime temperature recorded was -12°C in January 2018.
Precipitation and snowfall
On average, Hackettstown gets 1630 mm of precipitation each year. Of this, about 125 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Hackettstown?
The best time to visit Hackettstown for mild to warm weather is April up to October. You might get some rain, but the temperatures are just right to explore Hackettstown.
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Climate Table of Hackettstown
The climate table of Hackettstown shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 3 | 5 | 9 | 16 | 23 | 27 | 30 | 29 | 25 | 19 | 11 | 8 |
| Temp. min (°C) | -5 | -6 | -1 | 5 | 11 | 15 | 19 | 18 | 14 | 8 | 1 | 0 |
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| Precipitation (mm) | 97 | 125 | 131 | 127 | 102 | 102 | 227 | 127 | 108 | 194 | 141 | 149 |
| Snow (cm) | 24 | 55 | 26 | 5,5 | 0 | 0 | 0 | 0 | 0 | 0 | 3,9 | 12 |
| UV Index | 3 | 5 | 6 | 7 | 7 | 8 | 8 | 7 | 6 | 5 | 4 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Hackettstown, New Jersey. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Hackettstown
Yearly Temperature in Hackettstown
Precipitation charts
These charts show the average amount of precipitation 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.
Average Precipitation per Month in Hackettstown
Total Yearly Precipitation in Hackettstown
Average Snowfall per Month in Hackettstown
Total Yearly Snowfall in Hackettstown
UV index chart
This chart shows the average UV index per month in Hackettstown, New Jersey. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Hackettstown
Weather experiences 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.