August weather in Hackettstown, NJ
The average temperature in Hackettstown in August is °F (°F–°F). Average precipitation: 4.77 inches.
August is a summer month in Hackettstown, and is cooler than the annual average of 0°F. Expect about 10 days with precipitation. Daylight averages about 13h 38m.
Avg High
°F
Avg Low
°F
Precipitation
4.77 in
Daylight
13h 38m
August records in Hackettstown
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 91.9°F (2011) | 61.0°F (2014) | 1.76 in (1992) |
| August 2 | 93.9°F (2011) | 61.0°F (2013) | 2.20 in (1973) |
| August 3 | 91.0°F (2011) | 63.0°F (2013) | 3.00 in (2009) |
| August 4 | 90.0°F (2012) | 59.0°F (2013) | 1.20 in (2000) |
| August 5 | 90.0°F (2012) | 55.9°F (2013) | 1.53 in (1969) |
| August 6 | 93.9°F (2014) | 55.0°F (2013) | 2.45 in (2003) |
| August 7 | 87.1°F (2014) | 61.0°F (2014) | 2.91 in (1987) |
| August 8 | 87.1°F (2014) | 57.9°F (2014) | 3.42 in (2007) |
| August 9 | 86.0°F (2014) | 57.9°F (2014) | 1.54 in (1982) |
| August 10 | 89.1°F (2014) | 59.0°F (2014) | 2.00 in (1991) |
| August 11 | 87.1°F (2014) | 57.9°F (2013) | 2.00 in (1991) |
| August 12 | 81.0°F (2012) | 57.0°F (2011) | 3.00 in (1983) |
| August 13 | 80.1°F (2011) | 57.0°F (2011) | 1.95 in (2000) |
| August 14 | 80.1°F (2014) | 57.0°F (2013) | 2.39 in (2011) |
| August 15 | 73.9°F (2014) | 54.0°F (2013) | 1.68 in (2011) |
| August 16 | 78.1°F (2012) | 54.0°F (2014) | 1.22 in (2011) |
| August 17 | 80.1°F (2012) | 55.0°F (2013) | 1.67 in (1993) |
| August 18 | 80.1°F (2011) | 57.9°F (2013) | 2.55 in (1986) |
| August 19 | 79.0°F (2011) | 57.0°F (2012) | 0.53 in (1997) |
| August 20 | 82.0°F (2014) | 57.9°F (2012) | 0.88 in (1991) |
| August 21 | 81.0°F (2013) | 60.1°F (2011) | 1.23 in (1997) |
| August 22 | 82.0°F (2013) | 61.0°F (2012) | 1.25 in (2011) |
| August 23 | 78.1°F (2012) | 55.9°F (2011) | 3.30 in (1968) |
| August 24 | 79.0°F (2012) | 55.9°F (2011) | 1.61 in (1988) |
| August 25 | 80.1°F (2012) | 55.9°F (2013) | 2.06 in (1990) |
| August 26 | 80.1°F (2014) | 57.9°F (2013) | 1.19 in (2006) |
| August 27 | 82.9°F (2014) | 61.0°F (2013) | 0.85 in (1971) |
| August 28 | 84.0°F (2014) | 64.0°F (2014) | 6.86 in (1971) |
| August 29 | 80.1°F (2012) | 55.9°F (2011) | 1.03 in (1983) |
| August 30 | 77.0°F (2014) | 55.9°F (2011) | 1.60 in (1974) |
| August 31 | 79.0°F (2013) | 55.9°F (2014) | 0.79 in (1981) |