Weather on July 20
Cambridge, MA
55 Years of Data
Avg High
85°F
Avg Low
66°F
Warmest
2013
88°F avg
Coldest
1989
62°F avg
About This Date
July 20th in Cambridge, MA typically brings warm summer weather, with average highs around 85°F and lows near 66°F. Over 55 years of records, the warmest July 20th was in 2013 (88°F average), while the coldest was 1989 (62°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 27% of July 20th dates historically, with the wettest July 20th recording 2.13" of rain. The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for July 20th in Cambridge, MA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 70° | 78° | — | — |
| 2024 | 84° | 63° | 73° | — | — |
| 2023 | 86° | 66° | 76° | — | — |
| 2022 | 93° | 70° | 81° | — | — |
| 2021 | 72° | 63° | 67° | 0.1" | — |
| 2020 | 98° | 76° | 87° | — | — |
| 2019 | 92° | 67° | 79° | — | — |
| 2018 | 84° | 60° | 72° | — | — |
| 2017 | 95° | 67° | 81° | — | — |
| 2016 | 85° | 60° | 72° | — | — |
| 2015 | 93° | 73° | 83° | 0.05" | — |
| 2014 | 78° | 60° | 69° | — | — |
| 2013warmest | 99° | 78° | 88° | — | — |
| 2012 | 82° | 66° | 74° | — | — |
| 2011 | 88° | 63° | 75° | — | — |
| 2010 | 88° | 71° | 79° | — | — |
| 2009 | 82° | 61° | 71° | — | — |
| 2008 | 94° | 73° | 83° | — | — |
| 2007 | 85° | 67° | 76° | 0.03" | — |
| 2006 | 72° | 64° | 68° | — | — |
| 2005 | 91° | 76° | 83° | — | — |
| 2004 | 87° | 67° | 77° | — | — |
| 2003 | 84° | 65° | 74° | — | — |
| 2002 | 77° | 64° | 71° | 0.2" | — |
| 2001 | 75° | 53° | 64° | — | — |
| 2000 | 72° | 55° | 63° | 0.08" | — |
| 1999 | 90° | 63° | 76° | 1.3" | — |
| 1998 | 82° | 70° | 76° | — | — |
| 1997 | 80° | 57° | 69° | — | — |
| 1996 | 75° | 61° | 68° | 0.2" | — |
| 1995 | 88° | 63° | 75° | — | — |
| 1994 | 90° | 68° | 79° | — | — |
| 1993 | 80° | 62° | 71° | 0.46" | — |
| 1992 | 84° | 60° | 72° | 0.23" | — |
| 1991 | 73° | 73° | 73° | — | — |
| 1990 | 90° | 69° | 79° | — | — |
| 1989coldest | 59° | 65° | 62° | — | — |
| 1988 | 76° | 70° | 73° | 2.13" | — |
| 1987 | 85° | 61° | 73° | — | — |
| 1986 | 93° | 62° | 78° | — | — |
| 1985 | 96° | 74° | 85° | — | — |
| 1984 | 80° | 58° | 69° | — | — |
| 1983 | 88° | 67° | 77° | — | — |
| 1982 | 99° | 57° | 78° | — | — |
| 1981 | 80° | 64° | 72° | 0.74" | — |
| 1980 | 88° | 68° | 78° | — | — |
| 1979 | 83° | 63° | 73° | — | — |
| 1978 | 94° | 67° | 80° | — | — |
| 1977 | 95° | 77° | 86° | — | — |
| 1976 | 88° | 67° | 77° | — | — |
| 1975 | 80° | 70° | 75° | 0.2" | — |
| 1974 | 82° | 57° | 70° | 1.78" | — |
| 1973 | 86° | 65° | 75° | — | — |
| 1972 | 95° | 65° | 80° | 0.94" | — |
| 1971 | 70° | 62° | 66° | 1.78" | — |
55 years of data from CHESTNUT HILL