Weather on May 18
Phoenix, AZ
55 Years of Data
Avg High
95°F
Avg Low
65°F
Warmest
1997
92°F avg
Coldest
1977
64°F avg
About This Date
May 18th in Phoenix, AZ typically brings hot spring weather, with average highs around 95°F and lows near 65°F — a 30°F daily swing. Over 55 years of records, the warmest May 18th was in 1997 (92°F average), while the coldest was 1977 (64°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 2% of May 18th dates historically. The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Phoenix, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 60° | 76° | — | — |
| 2024 | 101° | 73° | 87° | — | — |
| 2023 | 100° | 72° | 86° | — | — |
| 2022 | 101° | 72° | 86° | — | — |
| 2021 | 95° | 66° | 81° | — | — |
| 2020 | 99° | 66° | 82° | — | — |
| 2019 | 86° | 55° | 71° | — | — |
| 2018 | 93° | 65° | 79° | — | — |
| 2017 | 85° | 57° | 71° | — | — |
| 2016 | 88° | 66° | 77° | 0.08" | — |
| 2015 | 88° | 62° | 75° | — | — |
| 2014 | 102° | 69° | 86° | — | — |
| 2013 | 90° | 70° | 80° | — | — |
| 2012 | 102° | 73° | 88° | — | — |
| 2011 | 80° | 62° | 71° | — | — |
| 2010 | 92° | 66° | 79° | — | — |
| 2009 | 106° | 75° | 90° | — | — |
| 2008 | 104° | 70° | 87° | — | — |
| 2007 | 99° | 71° | 85° | — | — |
| 2006 | 103° | 74° | 88° | — | — |
| 2005 | 93° | 63° | 78° | — | — |
| 2004 | 97° | 67° | 82° | — | — |
| 2003 | 102° | 78° | 90° | — | — |
| 2002 | 100° | 66° | 83° | — | — |
| 2001 | 99° | 71° | 85° | — | — |
| 2000 | 93° | 60° | 77° | — | — |
| 1999 | 100° | 64° | 82° | — | — |
| 1998 | 99° | 60° | 79° | — | — |
| 1997warmest | 104° | 81° | 92° | — | — |
| 1996 | 103° | 69° | 86° | — | — |
| 1995 | 92° | 59° | 75° | — | — |
| 1994 | 88° | 61° | 74° | — | — |
| 1993 | 98° | 67° | 82° | — | — |
| 1992 | 102° | 66° | 84° | — | — |
| 1991 | 90° | 67° | 78° | — | — |
| 1990 | 95° | 66° | 81° | — | — |
| 1989 | 93° | 67° | 80° | — | — |
| 1988 | 89° | 64° | 77° | — | — |
| 1987 | 96° | 72° | 84° | — | — |
| 1986 | 96° | 60° | 78° | — | — |
| 1985 | 96° | 66° | 81° | — | — |
| 1984 | 96° | 65° | 80° | — | — |
| 1983 | 90° | 61° | 75° | — | — |
| 1982 | 99° | 65° | 82° | — | — |
| 1981 | 94° | 56° | 75° | — | — |
| 1980 | 98° | 59° | 79° | — | — |
| 1979 | 96° | 62° | 79° | — | — |
| 1978 | 96° | 60° | 78° | — | — |
| 1977coldest | 81° | 48° | 64° | — | — |
| 1976 | 98° | 72° | 85° | — | — |
| 1975 | 91° | 60° | 76° | — | — |
| 1974 | 90° | 56° | 73° | — | — |
| 1973 | 105° | 65° | 85° | — | — |
| 1972 | 95° | 55° | 75° | — | — |
| 1971 | 84° | 49° | 66° | — | — |
55 years of data from BEARDSLEY