Weather on September 18
Chandler, AZ
55 Years of Data
Avg High
99°F
Avg Low
69°F
Warmest
1984
92°F avg
Coldest
1978
70°F avg
About This Date
September 18th in Chandler, AZ typically brings hot fall weather, with average highs around 99°F and lows near 69°F — a 30°F daily swing. Over 53 years of records, the warmest September 18th was in 1984 (92°F average), while the coldest was 1978 (70°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 18th dates historically, with the wettest September 18th recording 2.9" of rain. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for September 18th in Chandler, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 100° | 78° | 89° | — | — |
| 2023 | 103° | 65° | 84° | — | — |
| 2022 | 102° | — | — | — | — |
| 2020 | 106° | 72° | 89° | — | — |
| 2019 | 102° | 68° | 85° | — | — |
| 2018 | 105° | 73° | 89° | — | — |
| 2017 | 98° | 60° | 79° | — | — |
| 2016 | 103° | — | — | — | — |
| 2015 | 89° | 74° | 81° | — | — |
| 2014 | — | 65° | — | — | — |
| 2013 | 104° | 73° | 89° | — | — |
| 2012 | 101° | 66° | 83° | — | — |
| 2011 | 99° | 60° | 79° | — | — |
| 2010 | 108° | 67° | 87° | — | — |
| 2009 | 97° | 60° | 78° | — | — |
| 2008 | 99° | 73° | 86° | — | — |
| 2007 | 96° | 61° | 78° | — | — |
| 2006 | 97° | 63° | 80° | — | — |
| 2005 | — | 69° | — | — | — |
| 2004 | 97° | 73° | 85° | 0.25" | — |
| 2003 | 101° | 71° | 86° | — | — |
| 2002 | 100° | 75° | 88° | — | — |
| 2001 | 103° | 73° | 88° | — | — |
| 2000 | 103° | 79° | 91° | — | — |
| 1999 | 100° | 74° | 87° | — | — |
| 1998 | 106° | 77° | 91° | — | — |
| 1997 | 105° | 77° | 91° | — | — |
| 1996 | 90° | 70° | 80° | — | — |
| 1995 | 100° | 74° | 87° | — | — |
| 1994 | 104° | 72° | 88° | — | — |
| 1993 | 88° | 58° | 73° | — | — |
| 1992 | 100° | 76° | 88° | — | — |
| 1991 | 100° | 72° | 86° | — | — |
| 1990 | 95° | 73° | 84° | — | — |
| 1989 | 95° | 70° | 82° | — | — |
| 1988 | 98° | 66° | 82° | — | — |
| 1987 | 95° | 65° | 80° | — | — |
| 1986 | 96° | 65° | 80° | — | — |
| 1985 | 100° | 62° | 81° | 2.9" | — |
| 1984warmest | 102° | 82° | 92° | — | — |
| 1983 | 100° | 76° | 88° | — | — |
| 1982 | 93° | 69° | 81° | — | — |
| 1981 | 100° | 78° | 89° | — | — |
| 1980 | 103° | 58° | 80° | — | — |
| 1979 | — | 68° | — | — | — |
| 1978coldest | 88° | 53° | 70° | — | — |
| 1977 | 93° | 57° | 75° | — | — |
| 1976 | 95° | 60° | 78° | — | — |
| 1975 | 101° | 69° | 85° | — | — |
| 1974 | 96° | 58° | 77° | — | — |
| 1973 | 101° | 63° | 82° | — | — |
| 1972 | 98° | 71° | 85° | — | — |
| 1971 | 98° | 71° | 85° | — | — |
53 years of data from CHANDLER