September weather in Liberty, NY
The average temperature in Liberty in September is 59.2°F (48.3°F–70.1°F). Average precipitation: 5.17 inches.
September is a fall month in Liberty, and is warmer than the annual average of 45.3°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 16m. For travel, September is a wet month.
Avg High
70.1°F
Avg Low
48.3°F
Precipitation
5.17 in
Daylight
12h 16m
September records in Liberty
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (1953) | 36.0°F (1976) | 3.35 in (1952) |
| September 2 | 96.1°F (1953) | 37.9°F (1991) | 3.84 in (2021) |
| September 3 | 99.0°F (1953) | 35.1°F (1967) | 1.83 in (1910) |
| September 4 | 89.1°F (2015) | 39.0°F (1987) | 1.80 in (1966) |
| September 5 | 88.0°F (1961) | 39.0°F (1974) | 1.58 in (1988) |
| September 6 | 87.1°F (1900) | 34.0°F (1902) | 2.78 in (2022) |
| September 7 | 88.0°F (1983) | 34.0°F (1984) | 2.19 in (2022) |
| September 8 | 87.1°F (1985) | 34.0°F (1984) | 1.65 in (2011) |
| September 9 | 90.0°F (2015) | 35.1°F (1986) | 2.04 in (1987) |
| September 10 | 89.1°F (2002) | 35.1°F (1975) | 2.14 in (1985) |
| September 11 | 90.0°F (1983) | 30.9°F (1978) | 1.54 in (1907) |
| September 12 | 90.0°F (1983) | 34.0°F (1985) | 3.20 in (1997) |
| September 13 | 89.1°F (1961) | 33.1°F (1985) | 2.20 in (1960) |
| September 14 | 87.1°F (2005) | 32.0°F (1911) | 0.99 in (1904) |
| September 15 | 86.0°F (2005) | 32.0°F (1902) | 2.75 in (2006) |
| September 16 | 84.0°F (2005) | 30.0°F (1964) | 2.42 in (2002) |
| September 17 | 87.1°F (1991) | 30.9°F (1984) | 4.60 in (1999) |
| September 18 | 84.9°F (1991) | 28.9°F (1990) | 4.28 in (2004) |
| September 19 | 87.1°F (1906) | 30.0°F (1990) | 2.07 in (1978) |
| September 20 | 89.1°F (1983) | 28.0°F (1979) | 2.60 in (1989) |
| September 21 | 89.1°F (1983) | 28.0°F (1956) | 1.67 in (2001) |
| September 22 | 86.0°F (1980) | 23.0°F (1904) | 2.91 in (1946) |
| September 23 | 87.1°F (1980) | 28.9°F (1947) | 1.80 in (1957) |
| September 24 | 84.9°F (1908) | 24.1°F (1974) | 2.55 in (2021) |
| September 25 | 89.1°F (2017) | 28.0°F (1963) | 2.43 in (1977) |
| September 26 | 88.0°F (2017) | 30.0°F (1978) | 2.10 in (1899) |
| September 27 | 86.0°F (2007) | 27.0°F (1947) | 2.10 in (1985) |
| September 28 | 86.0°F (2017) | 28.9°F (1965) | 3.30 in (1908) |
| September 29 | 82.0°F (2025) | 28.0°F (2000) | 1.68 in (2004) |
| September 30 | 81.0°F (1905) | 27.0°F (1916) | 2.28 in (2015) |