Weather on August 18
Rochester, NY
55 Years of Data
Avg High
79°F
Avg Low
59°F
Warmest
2017
79°F avg
Coldest
1977
58°F avg
About This Date
August 18th in Rochester, NY typically brings pleasant summer weather, with average highs around 79°F and lows near 59°F. Over 55 years of records, the warmest August 18th was in 2017 (79°F average), while the coldest was 1977 (58°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 18th dates historically, with the wettest August 18th recording 3.51" of rain. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Rochester, NY? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 70° | 56° | 63° | — | — |
| 2024 | 82° | 68° | 75° | 0.41" | — |
| 2023 | 68° | 61° | 64° | 0.03" | — |
| 2022 | 83° | 57° | 70° | — | — |
| 2021 | 74° | 71° | 72° | 0.91" | — |
| 2020 | 76° | 57° | 66° | 0.08" | — |
| 2019 | 87° | 65° | 76° | 0.36" | — |
| 2018 | 74° | 63° | 68° | 1.3" | — |
| 2017warmest | 86° | 72° | 79° | 0.51" | — |
| 2016 | 82° | 66° | 74° | — | — |
| 2015 | 86° | 68° | 77° | — | — |
| 2014 | 72° | 54° | 63° | — | — |
| 2013 | 81° | 57° | 69° | — | — |
| 2012 | 72° | 51° | 61° | — | — |
| 2011 | 83° | 61° | 72° | — | — |
| 2010 | 75° | 62° | 69° | — | — |
| 2009 | 86° | 69° | 78° | 0.08" | — |
| 2008 | 84° | 63° | 73° | 0.66" | — |
| 2007 | 70° | 51° | 60° | — | — |
| 2006 | 88° | 66° | 77° | — | — |
| 2005 | 81° | 57° | 69° | — | — |
| 2004 | 80° | 62° | 71° | — | — |
| 2003 | 78° | 56° | 67° | — | — |
| 2002 | 87° | 61° | 74° | — | — |
| 2001 | 77° | 63° | 70° | — | — |
| 2000 | 72° | 50° | 61° | 0.08" | — |
| 1999 | 74° | 60° | 67° | 0.03" | — |
| 1998 | 70° | 55° | 62° | 3.51" | — |
| 1997 | 70° | 52° | 61° | — | — |
| 1996 | 80° | 55° | 68° | — | — |
| 1995 | 87° | 65° | 76° | — | — |
| 1994 | 81° | 65° | 73° | — | — |
| 1993 | 83° | 62° | 72° | — | — |
| 1992 | 76° | 56° | 66° | — | — |
| 1991 | 80° | 61° | 70° | — | — |
| 1990 | 84° | 66° | 75° | — | — |
| 1989 | 76° | 47° | 61° | — | — |
| 1988 | 72° | 53° | 62° | — | — |
| 1987 | 80° | 64° | 72° | — | — |
| 1986 | 76° | 59° | 67° | — | — |
| 1985 | 88° | 51° | 69° | — | — |
| 1984 | 75° | 52° | 63° | — | — |
| 1983 | 81° | 65° | 73° | 0.03" | — |
| 1982 | 79° | 55° | 67° | — | — |
| 1981 | 76° | 49° | 62° | — | — |
| 1980 | 80° | 65° | 72° | 0.1" | — |
| 1979 | 66° | 58° | 62° | 0.41" | — |
| 1978 | 84° | 59° | 72° | — | — |
| 1977coldest | 68° | 49° | 58° | — | — |
| 1976 | 80° | 56° | 68° | — | — |
| 1975 | 75° | 58° | 66° | — | — |
| 1974 | 82° | 59° | 71° | — | — |
| 1973 | 74° | 67° | 70° | 0.05" | — |
| 1972 | 82° | 63° | 72° | — | — |
| 1971 | 90° | 55° | 72° | — | — |
55 years of data from ROCHESTER GTR INTL