September weather in New Rochelle, NY
The average temperature in New Rochelle in September is 66.5°F (56.1°F–76.9°F). Average precipitation: 4.61 inches.
September is a fall month in New Rochelle, and is warmer than the annual average of 53.4°F. Daily temperatures swing about 20.8°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
76.9°F
Avg Low
56.1°F
Precipitation
4.61 in
Daylight
12h 15m
September records in New Rochelle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1953) | 48.9°F (2009) | 2.21 in (1952) |
| September 2 | 100.9°F (1953) | 45.0°F (1991) | 1.80 in (2002) |
| September 3 | 93.9°F (1953) | 45.0°F (1994) | 3.15 in (1974) |
| September 4 | 95.0°F (1973) | 48.0°F (1994) | 1.75 in (1992) |
| September 5 | 91.0°F (1983) | 45.0°F (1997) | 0.41 in (1991) |
| September 6 | 96.1°F (1983) | 45.0°F (1994) | 2.73 in (2008) |
| September 7 | 91.0°F (1983) | 45.0°F (1984) | 2.25 in (2008) |
| September 8 | 90.0°F (2007) | 46.9°F (1994) | 4.05 in (2004) |
| September 9 | 91.0°F (2002) | 44.1°F (1990) | 1.79 in (1981) |
| September 10 | 98.1°F (1983) | 44.1°F (1978) | 1.39 in (1999) |
| September 11 | 98.1°F (1983) | 41.0°F (1995) | 4.84 in (1954) |
| September 12 | 93.9°F (2005) | 42.1°F (1993) | 3.90 in (1960) |
| September 13 | 91.9°F (2005) | 44.1°F (1992) | 1.39 in (1987) |
| September 14 | 91.0°F (2008) | 42.1°F (1963) | 1.52 in (2001) |
| September 15 | 89.1°F (1993) | 41.0°F (1975) | 2.35 in (2005) |
| September 16 | 91.9°F (1991) | 41.0°F (1984) | 7.62 in (1999) |
| September 17 | 91.9°F (1972) | 39.9°F (2007) | 1.52 in (1996) |
| September 18 | 87.1°F (1948) | 37.0°F (1990) | 3.39 in (2004) |
| September 19 | 95.0°F (1983) | 39.0°F (1990) | 1.02 in (1972) |
| September 20 | 93.9°F (1983) | 39.0°F (1979) | 0.84 in (1977) |
| September 21 | 90.0°F (1980) | 39.9°F (1956) | 2.43 in (1966) |
| September 22 | 93.9°F (1980) | 37.0°F (1997) | 2.38 in (1979) |
| September 23 | 93.0°F (1970) | 37.0°F (1947) | 1.94 in (1975) |
| September 24 | 87.1°F (1959) | 36.0°F (1974) | 3.43 in (1946) |
| September 25 | 89.1°F (1970) | 35.1°F (1997) | 2.59 in (1991) |
| September 26 | 90.0°F (2007) | 39.0°F (1978) | 4.36 in (1975) |
| September 27 | 91.0°F (1998) | 36.0°F (1947) | 3.50 in (1985) |
| September 28 | 82.9°F (1954) | 33.1°F (1947) | 1.98 in (2004) |
| September 29 | 84.0°F (1948) | 35.1°F (2000) | 2.48 in (1963) |
| September 30 | 88.0°F (1986) | 34.0°F (1991) | 2.44 in (1946) |