Weather on July 18
Cambridge, MA
55 Years of Data
Avg High
86°F
Avg Low
65°F
Warmest
1999
89°F avg
Coldest
1989
60°F avg
About This Date
July 18th in Cambridge, MA typically brings warm summer weather, with average highs around 86°F and lows near 65°F. Over 55 years of records, the warmest July 18th was in 1999 (89°F average), while the coldest was 1989 (60°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 31% of July 18th dates historically, with the wettest July 18th recording 5.94" of rain. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for July 18th in Cambridge, MA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 71° | 82° | — | — |
| 2024 | 93° | 72° | 82° | 0.56" | — |
| 2023 | 91° | 71° | 81° | — | — |
| 2022 | 93° | 69° | 81° | — | — |
| 2021 | 82° | 66° | 74° | 0.99" | — |
| 2020 | 79° | 58° | 68° | — | — |
| 2019 | 94° | 69° | 81° | 1.45" | — |
| 2018 | 92° | 68° | 80° | 5.94" | — |
| 2017 | 91° | 69° | 80° | — | — |
| 2016 | 86° | 67° | 76° | — | — |
| 2015 | 82° | 64° | 73° | 0.61" | — |
| 2014 | 84° | 60° | 72° | 0.03" | — |
| 2013 | 96° | 76° | 86° | — | — |
| 2012 | 95° | 77° | 86° | — | — |
| 2011 | 92° | 65° | 78° | — | — |
| 2010 | 91° | 72° | 81° | — | — |
| 2009 | 88° | 69° | 78° | 1.3" | — |
| 2008 | 87° | 67° | 77° | — | — |
| 2007 | 71° | 64° | 68° | 0.43" | — |
| 2006 | 96° | 71° | 84° | 0.56" | — |
| 2005 | 86° | 73° | 80° | 0.08" | — |
| 2004 | 77° | 66° | 72° | — | — |
| 2003 | 81° | 66° | 73° | 0.43" | — |
| 2002 | 85° | 59° | 72° | — | — |
| 2001 | 71° | 60° | 66° | 0.33" | — |
| 2000 | 72° | 61° | 66° | — | — |
| 1999warmest | 100° | 77° | 89° | — | — |
| 1998 | 92° | 71° | 81° | — | — |
| 1997 | 95° | 64° | 80° | — | — |
| 1996 | 90° | 64° | 77° | — | — |
| 1995 | 72° | 60° | 66° | 0.36" | — |
| 1994 | 83° | 66° | 74° | — | — |
| 1993 | 88° | — | — | — | — |
| 1992 | 87° | 62° | 75° | 0.05" | — |
| 1991 | 92° | 70° | 81° | — | — |
| 1990 | 90° | 68° | 79° | — | — |
| 1989coldest | 65° | 56° | 60° | 0.76" | — |
| 1988 | 92° | 70° | 81° | — | — |
| 1987 | 78° | 54° | 66° | — | — |
| 1986 | 88° | 63° | 75° | — | — |
| 1985 | 79° | 59° | 69° | — | — |
| 1984 | 83° | 63° | 73° | — | — |
| 1983 | 89° | 48° | 69° | — | — |
| 1982 | 94° | 70° | 82° | — | — |
| 1981 | 89° | 56° | 72° | — | — |
| 1980 | 90° | 70° | 80° | — | — |
| 1979 | 80° | 63° | 71° | — | — |
| 1978 | 79° | 61° | 70° | — | — |
| 1977 | 95° | 70° | 82° | 0.71" | — |
| 1976 | 85° | 58° | 71° | — | — |
| 1975 | 95° | 70° | 82° | — | — |
| 1974 | 80° | 60° | 70° | — | — |
| 1973 | 79° | 56° | 67° | — | — |
| 1972 | 91° | 68° | 80° | — | — |
| 1971 | 84° | 56° | 70° | 0.33" | — |
55 years of data from CHESTNUT HILL