Brookhaven, Sunday, 9 August, 17:54
Clear. Feels like 89°. High 88°, low 72°.
In December, Brookhaven, NY averages a high of 43.2° and a low of 33.7°. About 4.7 inches of precipitation fall over the month (11 wet days). The record high is 66.7° (1998) and the record low 1° (1980). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 47.5° | 38.1° | 38% | 63.1° (2001) | 23.7° (1964) |
| 2 | 47.1° | 37.4° | 32% | 58.6° (2023) | 21.9° (1989) |
| 3 | 46.8° | 36.9° | 33% | 60.8° (2009) | 16.7° (1976) |
| 4 | 45.5° | 36.1° | 23% | 63.5° (1998) | 17.8° (1989) |
| 5 | 44.4° | 36° | 30% | 61.5° (2001) | 19.6° (2025) |
| 6 | 45.9° | 36.9° | 48% | 62.2° (2001) | 24.8° (2007) |
| 7 | 44.8° | 35.6° | 33% | 66.7° (1998) | 22.6° (1964) |
| 8 | 43° | 34.5° | 33% | 56.5° (1978) | 21° (2006) |
| 9 | 45° | 34.7° | 40% | 61.2° (1978) | 16.9° (1968) |
| 10 | 45° | 36° | 42% | 59° (2023) | 12.4° (1968) |
| 11 | 44.2° | 35.1° | 43% | 60.8° (2021) | 16° (1977) |
| 12 | 43.7° | 34.3° | 43% | 60.8° (2021) | 11.5° (1988) |
| 13 | 43.9° | 34.3° | 33% | 58.3° (2020) | 11.8° (1960) |
| 14 | 43.3° | 34.2° | 40% | 59.2° (2015) | 14.7° (1982) |
| 15 | 44.2° | 34.3° | 33% | 60.1° (2015) | 16.9° (2025) |
| 16 | 44.1° | 34.3° | 43% | 58.8° (1971) | 19.2° (1961) |
| 17 | 43.7° | 34° | 42% | 58.8° (2000) | 12.6° (1972) |
| 18 | 41.5° | 32° | 22% | 60.6° (2023) | 20.1° (1964) |
| 19 | 40.5° | 31.1° | 30% | 57.2° (1990) | 17.1° (1991) |
| 20 | 40.6° | 31.5° | 32% | 57.6° (1999) | 14.7° (2004) |
| 21 | 41.9° | 32.2° | 30% | 60.3° (2018) | 9.7° (1963) |
| 22 | 41.9° | 32.5° | 37% | 59.7° (2013) | 8.8° (1989) |
| 23 | 42.8° | 32.9° | 42% | 57.9° (2015) | 7.9° (1989) |
| 24 | 42.6° | 33.1° | 40% | 62.6° (2015) | 8.1° (2022) |
| 25 | 42.3° | 30.7° | 42% | 60.8° (2020) | 1° (1980) |
| 26 | 39.6° | 30.4° | 33% | 57.4° (1982) | 7° (1980) |
| 27 | 39° | 30.2° | 32% | 57.6° (1973) | 9.1° (1989) |
| 28 | 41.9° | 31.8° | 28% | 57.7° (2008) | 14° (2017) |
| 29 | 42.6° | 32.4° | 37% | 59.9° (1984) | 12.2° (2017) |
| 30 | 40.5° | 30.9° | 33% | 56.3° (2024) | 4.1° (1962) |
| 31 | 40.5° | 30.6° | 45% | 57.4° (1990) | 1.8° (1962) |