Weather on May 18
Tucson, AZ
55 Years of Data
Avg High
92°F
Avg Low
63°F
Warmest
1996
86°F avg
Coldest
1971
64°F avg
About This Date
May 18th in Tucson, AZ typically brings hot spring weather, with average highs around 92°F and lows near 63°F — a 29°F daily swing. Over 55 years of records, the warmest May 18th was in 1996 (86°F average), while the coldest was 1971 (64°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 18th dates historically, with the wettest May 18th recording 1.22" of rain. The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.6°F cooler on this date compared to 20-30 years ago.
Planning for May 18th 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 | 85° | 66° | 75° | — | — |
| 2024 | 99° | 67° | 83° | — | — |
| 2023 | 92° | 65° | 78° | 1.22" | — |
| 2022 | 98° | 68° | 83° | — | — |
| 2021 | 89° | 62° | 76° | — | — |
| 2020 | 97° | 65° | 81° | — | — |
| 2019 | 82° | 52° | 67° | — | — |
| 2018 | 92° | 60° | 76° | — | — |
| 2017 | 83° | 59° | 71° | — | — |
| 2016 | 82° | 62° | 72° | — | — |
| 2015 | 91° | 59° | 75° | — | — |
| 2014 | 100° | 63° | 81° | — | — |
| 2013 | 91° | 67° | 79° | — | — |
| 2012 | 97° | 61° | 79° | — | — |
| 2011 | 75° | 54° | 64° | — | — |
| 2010 | 90° | 57° | 73° | — | — |
| 2009 | 100° | 69° | 85° | — | — |
| 2008 | 100° | 65° | 82° | — | — |
| 2007 | 97° | 69° | 83° | — | — |
| 2006 | 98° | 68° | 83° | — | — |
| 2005 | 90° | 64° | 77° | — | — |
| 2004 | 98° | 67° | 82° | — | — |
| 2003 | 96° | 69° | 83° | — | — |
| 2002 | 99° | 65° | 82° | — | — |
| 2001 | 97° | 68° | 82° | — | — |
| 2000 | 87° | 58° | 72° | — | — |
| 1999 | 97° | 62° | 79° | — | — |
| 1998 | 97° | 63° | 80° | — | — |
| 1997 | 94° | 77° | 85° | — | — |
| 1996warmest | 103° | 69° | 86° | — | — |
| 1995 | 90° | 59° | 74° | — | — |
| 1994 | 90° | 71° | 80° | — | — |
| 1993 | 94° | 68° | 81° | — | — |
| 1992 | 99° | 71° | 85° | 0.28" | — |
| 1991 | 93° | 66° | 80° | — | — |
| 1990 | 89° | 65° | 77° | — | — |
| 1989 | 92° | 62° | 77° | — | — |
| 1988 | 88° | 70° | 79° | — | — |
| 1987 | 91° | 68° | 80° | — | — |
| 1986 | 92° | 63° | 77° | — | — |
| 1985 | 94° | 63° | 78° | — | — |
| 1984 | 93° | 64° | 79° | — | — |
| 1983 | 84° | 52° | 68° | — | — |
| 1982 | 93° | 68° | 81° | — | — |
| 1981 | 91° | 58° | 74° | — | — |
| 1980 | 93° | 62° | 78° | — | — |
| 1979 | 90° | 61° | 75° | — | — |
| 1978 | 91° | 56° | 73° | — | — |
| 1977 | 80° | 50° | 65° | — | — |
| 1976 | 92° | 63° | 77° | 0.25" | — |
| 1975 | 85° | 58° | 71° | — | — |
| 1974 | 92° | 56° | 74° | — | — |
| 1973 | 100° | 64° | 82° | — | — |
| 1972 | 94° | 61° | 77° | — | — |
| 1971coldest | 77° | 51° | 64° | — | — |
55 years of data from TUCSON WFO