September weather in Clinton, NJ
The average temperature in Clinton in September is 65.7°F (54.0°F–77.4°F). Average precipitation: 4.39 inches.
September is a fall month in Clinton, and is warmer than the annual average of 52.1°F. Daily temperatures swing about 23.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
77.4°F
Avg Low
54.0°F
Precipitation
4.39 in
Daylight
12h 15m
September records in Clinton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1898) | 37.9°F (1976) | 2.23 in (1952) |
| September 2 | 105.1°F (1953) | 41.0°F (1949) | 6.97 in (2021) |
| September 3 | 100.0°F (1980) | 37.9°F (1967) | 1.86 in (2006) |
| September 4 | 99.0°F (1929) | 39.9°F (1967) | 2.41 in (1935) |
| September 5 | 98.1°F (1964) | 44.1°F (1951) | 2.59 in (1907) |
| September 6 | 96.1°F (1943) | 39.9°F (1909) | 2.95 in (1979) |
| September 7 | 95.0°F (1919) | 39.0°F (1962) | 3.28 in (2008) |
| September 8 | 97.0°F (1939) | 37.0°F (1962) | 2.46 in (1929) |
| September 9 | 96.1°F (2015) | 39.0°F (1951) | 1.74 in (1929) |
| September 10 | 98.1°F (1931) | 36.0°F (1956) | 1.79 in (1945) |
| September 11 | 100.0°F (1931) | 35.1°F (1917) | 2.94 in (1899) |
| September 12 | 98.1°F (1964) | 34.0°F (1967) | 3.64 in (1960) |
| September 13 | 93.9°F (1952) | 35.1°F (1967) | 2.35 in (1963) |
| September 14 | 93.9°F (1931) | 39.0°F (1911) | 1.31 in (2001) |
| September 15 | 95.0°F (1927) | 34.0°F (1975) | 2.50 in (1973) |
| September 16 | 95.0°F (1941) | 36.0°F (1964) | 2.40 in (1903) |
| September 17 | 93.9°F (1991) | 35.1°F (1950) | 8.49 in (1999) |
| September 18 | 91.9°F (1914) | 30.9°F (1959) | 2.12 in (2004) |
| September 19 | 93.0°F (1906) | 33.1°F (1959) | 2.68 in (1938) |
| September 20 | 91.0°F (1983) | 34.0°F (1959) | 4.74 in (1989) |
| September 21 | 97.0°F (1914) | 30.9°F (1956) | 3.66 in (1938) |
| September 22 | 99.0°F (1914) | 30.9°F (1904) | 2.85 in (1979) |
| September 23 | 93.9°F (1914) | 33.1°F (1904) | 3.00 in (1919) |
| September 24 | 93.0°F (1970) | 27.0°F (1963) | 2.89 in (2011) |
| September 25 | 93.0°F (1970) | 27.0°F (1963) | 2.75 in (1975) |
| September 26 | 91.0°F (1900) | 30.0°F (1963) | 2.18 in (2002) |
| September 27 | 91.0°F (2007) | 28.0°F (1957) | 2.51 in (1958) |
| September 28 | 90.0°F (2017) | 27.0°F (1957) | 2.72 in (2011) |
| September 29 | 91.0°F (1945) | 30.9°F (1957) | 3.82 in (2004) |
| September 30 | 90.0°F (1905) | 27.0°F (1951) | 1.97 in (1924) |