Weather on December 18
Rochester, NY
55 Years of Data
About This Date
December 18th in Rochester, NY typically brings cold winter weather, with average highs around 33°F and lows near 21°F. Over 55 years of records, the warmest December 18th was in 1990 (44°F average), while the coldest was 1973 (7°F) — a 37°F range across recorded history. Precipitation has occurred on 53% of recorded December 18th dates, with snow falling 45% of the time (heaviest snowfall: 4.1"). The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Rochester, NY? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella. Check road conditions if traveling, as snow is possible.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 26° | 41° | — | — |
| 2024 | 41° | 33° | 37° | 0.64" | 0.6" |
| 2023 | 50° | 34° | 42° | 0.66" | — |
| 2022 | 32° | 25° | 29° | 0.03" | 0.4" |
| 2021 | 35° | 28° | 32° | 1.02" | 1.2" |
| 2020 | 28° | 13° | 21° | — | — |
| 2019 | 28° | 12° | 20° | 0.25" | 3.5" |
| 2018 | 28° | 20° | 24° | — | — |
| 2017 | 41° | 25° | 33° | 0.15" | — |
| 2016 | 35° | 18° | 27° | 0.86" | 0.4" |
| 2015 | 40° | 31° | 36° | — | — |
| 2014 | 33° | 28° | 31° | 0.05" | — |
| 2013 | 32° | 24° | 28° | 0.05" | 0.3" |
| 2012 | 45° | 39° | 42° | 1.02" | — |
| 2011 | 34° | 16° | 25° | — | — |
| 2010 | 29° | 17° | 23° | — | 0.1" |
| 2009 | 21° | 5° | 13° | — | — |
| 2008 | 32° | 28° | 30° | 0.03" | — |
| 2007 | 33° | 19° | 26° | — | — |
| 2006 | 49° | 38° | 43° | — | — |
| 2005 | 28° | 24° | 26° | — | 0.1" |
| 2004 | 39° | 16° | 27° | — | — |
| 2003 | 30° | 23° | 27° | 0.13" | 0.6" |
| 2002 | 37° | 6° | 22° | — | — |
| 2001 | 41° | 36° | 38° | 0.2" | — |
| 2000 | 28° | 20° | 24° | — | — |
| 1999 | 30° | 19° | 25° | 0.03" | 0.4" |
| 1998 | 35° | 23° | 29° | 0.58" | 2.5" |
| 1997 | 38° | 25° | 31° | — | — |
| 1996 | 39° | 29° | 34° | — | — |
| 1995 | 29° | 23° | 26° | — | — |
| 1994 | 42° | 35° | 39° | 0.05" | — |
| 1993 | 41° | 26° | 34° | 0.05" | 0.2" |
| 1992 | 34° | 26° | 30° | — | — |
| 1991 | 28° | 13° | 20° | 0.28" | 3" |
| 1990warmest | 52° | 36° | 44° | 1.17" | — |
| 1989 | 22° | 6° | 14° | — | — |
| 1988 | 26° | 13° | 19° | — | 0.1" |
| 1987 | 27° | 24° | 25° | — | 0.1" |
| 1986 | 42° | 35° | 39° | 0.71" | — |
| 1985 | 14° | 7° | 10° | 0.1" | 0.9" |
| 1984 | 42° | 33° | 38° | — | — |
| 1983 | 25° | 19° | 22° | — | 0.1" |
| 1982 | 34° | 11° | 22° | — | — |
| 1981 | 25° | 9° | 17° | 0.2" | 1.2" |
| 1980 | 39° | 27° | 33° | 0.28" | 2.2" |
| 1979 | 22° | 9° | 15° | 0.64" | 4.1" |
| 1978 | 30° | 12° | 21° | 0.43" | 2.2" |
| 1977 | 36° | 29° | 32° | 1.57" | 0.8" |
| 1976 | 35° | 22° | 28° | — | — |
| 1975 | 24° | 11° | 17° | 0.03" | 0.2" |
| 1974 | 31° | 26° | 28° | 0.03" | 0.1" |
| 1973coldest | 14° | 0° | 7° | — | — |
| 1972 | 32° | 21° | 27° | — | — |
| 1971 | 22° | 8° | 15° | 0.25" | 2" |