September weather in Hewlett Bay Park, NY
The average temperature in Hewlett Bay Park in September is 68.4°F (61.0°F–75.8°F). Average precipitation: 3.58 inches.
September is a fall month in Hewlett Bay Park, and is warmer than the annual average of 54.3°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
75.8°F
Avg Low
61.0°F
Precipitation
3.58 in
Daylight
12h 15m
September records in Hewlett Bay Park
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.9°F (2010) | 54.0°F (1967) | 2.56 in (2021) |
| September 2 | 93.0°F (1953) | 53.1°F (1949) | 2.28 in (2002) |
| September 3 | 93.0°F (1993) | 52.0°F (1967) | 1.51 in (1974) |
| September 4 | 93.0°F (1985) | 53.1°F (1965) | 1.87 in (1969) |
| September 5 | 93.9°F (1961) | 52.0°F (1989) | 0.59 in (1986) |
| September 6 | 93.0°F (2023) | 52.0°F (1963) | 2.51 in (2008) |
| September 7 | 93.0°F (1983) | 46.9°F (1962) | 0.98 in (1974) |
| September 8 | 91.9°F (2010) | 50.0°F (1962) | 2.93 in (2004) |
| September 9 | 93.0°F (1959) | 51.1°F (1949) | 0.77 in (2008) |
| September 10 | 98.1°F (1983) | 50.0°F (1956) | 1.36 in (2020) |
| September 11 | 96.1°F (1983) | 48.9°F (1967) | 1.56 in (1968) |
| September 12 | 91.0°F (1981) | 46.0°F (1967) | 5.83 in (1960) |
| September 13 | 93.9°F (1952) | 46.9°F (1963) | 1.55 in (1988) |
| September 14 | 89.1°F (1972) | 48.0°F (1963) | 1.60 in (1973) |
| September 15 | 84.9°F (2008) | 45.0°F (1975) | 1.69 in (2005) |
| September 16 | 89.1°F (1991) | 46.9°F (1966) | 3.27 in (1999) |
| September 17 | 90.0°F (1991) | 46.9°F (1950) | 1.88 in (1995) |
| September 18 | 90.0°F (1965) | 46.0°F (1961) | 1.58 in (2012) |
| September 19 | 90.0°F (1983) | 46.9°F (1956) | 1.78 in (1960) |
| September 20 | 84.9°F (1983) | 41.0°F (1979) | 0.69 in (2001) |
| September 21 | 84.9°F (2016) | 42.1°F (1962) | 4.49 in (1966) |
| September 22 | 91.0°F (1980) | 41.0°F (1962) | 1.18 in (1994) |
| September 23 | 90.0°F (1970) | 43.0°F (1963) | 1.66 in (1975) |
| September 24 | 91.9°F (2017) | 39.9°F (1963) | 1.28 in (1975) |
| September 25 | 87.1°F (2010) | 39.9°F (1950) | 1.40 in (1975) |
| September 26 | 87.1°F (1970) | 46.9°F (1949) | 3.08 in (1975) |
| September 27 | 89.1°F (1998) | 43.0°F (1957) | 2.48 in (1985) |
| September 28 | 82.0°F (1948) | 44.1°F (1957) | 3.42 in (2004) |
| September 29 | 82.0°F (1948) | 44.1°F (2000) | 8.05 in (2023) |
| September 30 | 84.0°F (1986) | 42.1°F (1951) | 1.66 in (1983) |