Weather on May 31
Tucson, AZ
55 Years of Data
Avg High
97°F
Avg Low
66°F
Warmest
1997
91°F avg
Coldest
1991
67°F avg
About This Date
May 31st in Tucson, AZ typically brings hot spring weather, with average highs around 97°F and lows near 66°F — a 31°F daily swing. Over 55 years of records, the warmest May 31st was in 1997 (91°F average), while the coldest was 1991 (67°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 31st dates historically. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in Tucson, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 99° | 74° | 86° | — | — |
| 2024 | 102° | 67° | 84° | — | — |
| 2023 | 91° | 62° | 77° | — | — |
| 2022 | 98° | 62° | 80° | — | — |
| 2021 | 98° | 70° | 84° | — | — |
| 2020 | 104° | 76° | 90° | — | — |
| 2019 | 96° | 61° | 78° | — | — |
| 2018 | 100° | 67° | 83° | — | — |
| 2017 | 99° | 76° | 87° | — | — |
| 2016 | 94° | 60° | 77° | — | — |
| 2015 | 104° | 70° | 87° | — | — |
| 2014 | 106° | 72° | 89° | — | — |
| 2013 | 99° | 73° | 86° | — | — |
| 2012 | 102° | 59° | 81° | — | — |
| 2011 | 98° | 54° | 76° | — | — |
| 2010 | 97° | 59° | 78° | — | — |
| 2009 | — | 60° | — | — | — |
| 2008 | 100° | 55° | 78° | — | — |
| 2007 | 96° | 69° | 83° | — | — |
| 2006 | 99° | 64° | 81° | — | — |
| 2005 | 92° | 67° | 79° | — | — |
| 2004 | 98° | 66° | 82° | — | — |
| 2003 | 96° | 68° | 82° | — | — |
| 2002 | 104° | 71° | 88° | — | — |
| 2001 | 103° | 71° | 87° | — | — |
| 2000 | 102° | 74° | 88° | — | — |
| 1999 | 90° | 69° | 79° | — | — |
| 1998 | 94° | 64° | 79° | — | — |
| 1997warmest | 108° | 74° | 91° | — | — |
| 1996 | 97° | 66° | 81° | — | — |
| 1995 | 95° | 67° | 81° | — | — |
| 1994 | 102° | 76° | 89° | — | — |
| 1993 | 102° | 71° | 87° | — | — |
| 1992 | 94° | 68° | 81° | — | — |
| 1991coldest | 76° | 59° | 67° | — | — |
| 1990 | 91° | 63° | 77° | — | — |
| 1989 | 95° | 63° | 79° | — | — |
| 1988 | 83° | 55° | 69° | — | — |
| 1987 | 93° | 67° | 80° | — | — |
| 1986 | 94° | 67° | 80° | 0.23" | — |
| 1985 | 88° | 70° | 79° | — | — |
| 1984 | 97° | 73° | 85° | 0.05" | — |
| 1983 | 94° | 72° | 83° | — | — |
| 1982 | 99° | 65° | 82° | — | — |
| 1981 | 91° | 69° | 80° | 0.1" | — |
| 1980 | 92° | 59° | 75° | — | — |
| 1979 | 96° | 68° | 82° | — | — |
| 1978 | 100° | 66° | 83° | — | — |
| 1977 | 105° | 69° | 87° | — | — |
| 1976 | 95° | 62° | 79° | — | — |
| 1975 | 95° | 62° | 79° | — | — |
| 1974 | 93° | 62° | 78° | — | — |
| 1973 | 94° | 69° | 81° | — | — |
| 1972 | 92° | 66° | 79° | — | — |
| 1971 | 90° | 59° | 74° | — | — |
55 years of data from TUCSON WFO