Weather on August 31
Mesa, AZ
55 Years of Data
Avg High
104°F
Avg Low
75°F
Warmest
1984
98°F avg
Coldest
1993
82°F avg
About This Date
August 31st in Mesa, AZ typically brings hot summer weather, with average highs around 104°F and lows near 75°F — a 29°F daily swing. Over 54 years of records, the warmest August 31st was in 1984 (98°F average), while the coldest was 1993 (82°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 31st dates historically, with the wettest August 31st recording 2.31" 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 August 31st in Mesa, AZ? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 110° | 75° | 92° | — | — |
| 2024 | 109° | 80° | 95° | — | — |
| 2023 | 110° | 78° | 94° | — | — |
| 2022 | 110° | 72° | 91° | — | — |
| 2021 | 107° | 68° | 88° | 0.05" | — |
| 2020 | 98° | 72° | 85° | — | — |
| 2019 | 106° | 77° | 91° | — | — |
| 2018 | 107° | 74° | 90° | — | — |
| 2017 | 106° | 73° | 89° | — | — |
| 2016 | — | 74° | — | — | — |
| 2015 | 103° | 65° | 84° | 0.18" | — |
| 2014 | 106° | 66° | 86° | — | — |
| 2013 | 99° | 76° | 87° | 0.03" | — |
| 2012 | 100° | 77° | 89° | — | — |
| 2011 | 110° | 77° | 93° | — | — |
| 2010 | 99° | 66° | 82° | — | — |
| 2009 | 107° | 74° | 90° | — | — |
| 2008 | 94° | 72° | 83° | 0.1" | — |
| 2007 | 111° | 81° | 96° | — | — |
| 2006 | 106° | 75° | 90° | — | — |
| 2005 | 104° | 81° | 92° | — | — |
| 2004 | 107° | 78° | 93° | — | — |
| 2003 | 105° | 83° | 94° | — | — |
| 2002 | 108° | 77° | 92° | — | — |
| 2001 | 99° | 73° | 86° | 0.74" | — |
| 2000 | 95° | 69° | 82° | — | — |
| 1999 | 99° | 74° | 86° | 0.38" | — |
| 1998 | 109° | 83° | 96° | — | — |
| 1996 | 102° | 82° | 92° | — | — |
| 1995 | 110° | 79° | 94° | — | — |
| 1994 | 102° | 79° | 90° | — | — |
| 1993coldest | 94° | 71° | 82° | — | — |
| 1992 | 98° | 71° | 85° | — | — |
| 1991 | 98° | 80° | 89° | 0.18" | — |
| 1990 | 100° | 81° | 90° | — | — |
| 1989 | 102° | 78° | 90° | — | — |
| 1988 | 100° | 79° | 89° | — | — |
| 1987 | 102° | 70° | 86° | — | — |
| 1986 | 99° | — | — | — | — |
| 1985 | 111° | 79° | 95° | — | — |
| 1984warmest | 111° | 84° | 98° | — | — |
| 1983 | 106° | 79° | 92° | — | — |
| 1982 | 104° | 78° | 91° | — | — |
| 1981 | 107° | 78° | 93° | — | — |
| 1980 | 103° | 68° | 85° | — | — |
| 1979 | 105° | 70° | 87° | — | — |
| 1978 | 103° | 76° | 89° | — | — |
| 1977 | 104° | 74° | 89° | — | — |
| 1976 | 106° | 74° | 90° | — | — |
| 1975 | 109° | 72° | 90° | — | — |
| 1974 | 106° | 66° | 86° | — | — |
| 1973 | 101° | 75° | 88° | — | — |
| 1972 | 101° | 76° | 88° | — | — |
| 1971 | 108° | 66° | 87° | 2.31" | — |
54 years of data from MESA