Weather on September 20
Tucson, AZ
55 Years of Data
Avg High
95°F
Avg Low
69°F
Warmest
1994
90°F avg
Coldest
1971
71°F avg
About This Date
September 20th in Tucson, AZ typically brings hot fall weather, with average highs around 95°F and lows near 69°F — a 26°F daily swing. Over 55 years of records, the warmest September 20th was in 1994 (90°F average), while the coldest was 1971 (71°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 20th dates historically, with the wettest September 20th recording 1.3" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 20th in Tucson, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 73° | 84° | — | — |
| 2024 | 93° | 67° | 80° | — | — |
| 2023 | 92° | 69° | 80° | — | — |
| 2022 | 96° | 73° | 85° | 0.38" | — |
| 2021 | 97° | 68° | 82° | — | — |
| 2020 | 101° | 78° | 89° | — | — |
| 2019 | 94° | 65° | 79° | — | — |
| 2018 | 88° | 67° | 77° | — | — |
| 2017 | 96° | 71° | 84° | — | — |
| 2016 | 92° | 74° | 83° | — | — |
| 2015 | 95° | 72° | 83° | — | — |
| 2014 | 90° | 73° | 81° | — | — |
| 2013 | 101° | 70° | 85° | — | — |
| 2012 | 101° | 71° | 86° | — | — |
| 2011 | 100° | 64° | 82° | — | — |
| 2010 | 103° | 75° | 89° | — | — |
| 2009 | 99° | 67° | 83° | — | — |
| 2008 | 100° | 65° | 82° | — | — |
| 2007 | 93° | 72° | 82° | — | — |
| 2006 | 89° | 71° | 80° | — | — |
| 2005 | 100° | 77° | 89° | — | — |
| 2004 | 86° | 68° | 77° | — | — |
| 2003 | 98° | 71° | 85° | — | — |
| 2002 | 92° | 69° | 80° | — | — |
| 2001 | 99° | 72° | 85° | — | — |
| 2000 | 96° | 73° | 85° | — | — |
| 1999 | 90° | 69° | 79° | — | — |
| 1998 | 95° | 77° | 86° | — | — |
| 1997 | 100° | 68° | 84° | — | — |
| 1996 | 90° | 68° | 79° | — | — |
| 1995 | 98° | 70° | 84° | — | — |
| 1994warmest | 100° | 80° | 90° | — | — |
| 1993 | 98° | 64° | 81° | — | — |
| 1992 | 91° | 74° | 82° | — | — |
| 1991 | 88° | 68° | 78° | — | — |
| 1990 | 89° | 75° | 82° | — | — |
| 1989 | 92° | 61° | 76° | — | — |
| 1988 | 90° | 71° | 80° | — | — |
| 1987 | 96° | 69° | 83° | — | — |
| 1986 | 94° | 70° | 82° | — | — |
| 1985 | 83° | 60° | 71° | — | — |
| 1984 | 101° | 71° | 86° | — | — |
| 1983 | 94° | 73° | 83° | — | — |
| 1982 | 98° | 70° | 84° | — | — |
| 1981 | 95° | 71° | 83° | — | — |
| 1980 | 100° | 71° | 86° | — | — |
| 1979 | 100° | 69° | 85° | — | — |
| 1978 | 91° | 58° | 74° | — | — |
| 1977 | 96° | 69° | 83° | — | — |
| 1976 | 96° | 69° | 83° | — | — |
| 1975 | 100° | 72° | 86° | — | — |
| 1974 | 86° | 63° | 74° | 1.3" | — |
| 1973 | 100° | 72° | 86° | — | — |
| 1972 | 91° | 59° | 75° | — | — |
| 1971coldest | 88° | 55° | 71° | — | — |
55 years of data from TUCSON WFO