Seaford, Sunday, 9 August, 11:33
Partly cloudy. Feels like 99°. High 89°, low 72°.
In September, Seaford, NY averages a high of 72.3° and a low of 63.1°. About 4.0 inches of precipitation fall over the month (9 wet days). The record high is 89.6° (2023) and the record low 46.9° (1963). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 75.9° | 66.9° | 30% | 86.7° (1973) | 54.7° (2017) |
| 2 | 75.4° | 66.2° | 30% | 87.3° (1966) | 54.1° (2017) |
| 3 | 75.9° | 66.6° | 30% | 85.1° (2023) | 55.8° (1967) |
| 4 | 76.3° | 66.7° | 25% | 87.3° (2018) | 55.8° (1997) |
| 5 | 75.4° | 66.4° | 18% | 89.4° (2023) | 56.8° (2000) |
| 6 | 75° | 66.2° | 37% | 88.9° (2023) | 55.8° (1984) |
| 7 | 75.4° | 65.7° | 33% | 89.6° (2023) | 55.9° (1984) |
| 8 | 74.5° | 65.1° | 23% | 85.1° (2015) | 53.6° (2024) |
| 9 | 74.1° | 64.8° | 25% | 86° (2016) | 53.6° (2024) |
| 10 | 74.3° | 64.8° | 32% | 88.3° (1983) | 55.6° (2017) |
| 11 | 74.3° | 64.2° | 20% | 89.1° (1983) | 53.8° (1967) |
| 12 | 73.8° | 64° | 23% | 86° (2005) | 54.1° (1967) |
| 13 | 73.6° | 64.2° | 32% | 84.4° (2021) | 51.6° (1963) |
| 14 | 73.8° | 64.6° | 38% | 81.5° (1981) | 51.8° (1975) |
| 15 | 72.3° | 63.1° | 30% | 80.1° (2025) | 53.6° (2020) |
| 16 | 71.8° | 62.4° | 33% | 83.7° (1991) | 51.4° (1984) |
| 17 | 71.4° | 62.6° | 33% | 84.2° (1991) | 50.4° (1986) |
| 18 | 71.8° | 62.8° | 32% | 82° (1965) | 50.4° (1990) |
| 19 | 71.8° | 61.5° | 28% | 84.6° (1983) | 49.8° (2020) |
| 20 | 71.1° | 61.7° | 27% | 81.1° (1983) | 50.9° (2020) |
| 21 | 70.9° | 61.9° | 27% | 80.1° (2017) | 48° (1962) |
| 22 | 70.9° | 61.5° | 40% | 83.3° (1980) | 47.8° (2020) |
| 23 | 70.3° | 60.8° | 33% | 84.4° (1970) | 47.3° (1963) |
| 24 | 68.9° | 59.7° | 28% | 83.8° (2017) | 46.9° (1963) |
| 25 | 68.7° | 60.3° | 25% | 81.9° (2010) | 48.9° (1967) |
| 26 | 69.4° | 61° | 40% | 79° (1970) | 52.2° (1966) |
| 27 | 70.2° | 60.8° | 33% | 82.6° (2017) | 49.1° (1989) |
| 28 | 69.3° | 60.8° | 45% | 75.9° (2017) | 48.7° (1989) |
| 29 | 67.3° | 59.2° | 38% | 77.9° (2019) | 47.7° (2000) |
| 30 | 66.6° | 57.9° | 32% | 79.3° (1986) | 48.4° (1991) |