Weather on March 18
Tempe, AZ
55 Years of Data
Avg High
80°F
Avg Low
49°F
Warmest
2026
85°F avg
Coldest
1977
51°F avg
About This Date
March 18th in Tempe, AZ typically brings warm spring weather, with average highs around 80°F and lows near 49°F — a 31°F daily swing. Over 56 years of records, the warmest March 18th was in 2026 (85°F average), while the coldest was 1977 (51°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 9% of March 18th dates historically, with the wettest March 18th recording 1.19" 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 March 18th in Tempe, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 102° | 68° | 85° | — | — |
| 2025 | 81° | 55° | 68° | — | — |
| 2024 | 80° | 41° | 61° | — | — |
| 2023 | 76° | 44° | 60° | — | — |
| 2022 | 84° | 40° | 62° | — | — |
| 2021 | 82° | 43° | 62° | — | — |
| 2020 | — | 50° | — | — | — |
| 2019 | 80° | 44° | 62° | — | — |
| 2018 | 73° | 52° | 62° | — | — |
| 2017 | 95° | 54° | 74° | — | — |
| 2016 | 88° | — | — | — | — |
| 2015 | 82° | 52° | 67° | 0.03" | — |
| 2014 | 81° | 61° | 71° | — | — |
| 2013 | 84° | 49° | 66° | — | — |
| 2012 | — | 38° | — | 0.76" | — |
| 2011 | 87° | 49° | 68° | — | — |
| 2010 | 86° | 48° | 67° | — | — |
| 2009 | 89° | 48° | 69° | — | — |
| 2008 | 75° | 37° | 56° | — | — |
| 2007 | 92° | 52° | 72° | — | — |
| 2006 | 78° | 42° | 60° | — | — |
| 2005 | 73° | 56° | 64° | — | — |
| 2004 | 91° | 57° | 74° | — | — |
| 2003 | 67° | 43° | 55° | — | — |
| 2002 | 68° | 52° | 60° | — | — |
| 2001 | 79° | 47° | 63° | — | — |
| 2000 | 84° | 55° | 70° | — | — |
| 1999 | 71° | 46° | 59° | — | — |
| 1998 | 74° | 54° | 64° | — | — |
| 1997 | 90° | 62° | 76° | — | — |
| 1996 | 85° | 53° | 69° | — | — |
| 1995 | 88° | 61° | 74° | — | — |
| 1994 | 81° | 50° | 65° | — | — |
| 1993 | 80° | 51° | 66° | — | — |
| 1992 | 74° | 48° | 61° | — | — |
| 1991 | 78° | 44° | 61° | — | — |
| 1990 | 53° | 86° | 70° | — | — |
| 1989 | 90° | 54° | 72° | — | — |
| 1988 | 78° | 46° | 62° | — | — |
| 1987 | 76° | 45° | 60° | — | — |
| 1986 | 67° | 43° | 55° | — | — |
| 1985 | 80° | 51° | 66° | — | — |
| 1984 | 78° | 52° | 65° | — | — |
| 1983 | 67° | 52° | 59° | 1.19" | — |
| 1982 | 69° | 48° | 59° | 0.48" | — |
| 1981 | 80° | 41° | 61° | — | — |
| 1980 | 75° | 37° | 56° | — | — |
| 1979 | 66° | 44° | 55° | 0.05" | — |
| 1978 | 82° | 54° | 68° | — | — |
| 1977coldest | 70° | 32° | 51° | — | — |
| 1976 | 77° | 42° | 60° | — | — |
| 1975 | 69° | 37° | 53° | — | — |
| 1974 | 93° | 48° | 71° | — | — |
| 1973 | 75° | 45° | 60° | — | — |
| 1972 | 95° | 45° | 70° | — | — |
| 1971 | 89° | 45° | 67° | — | — |
56 years of data from TEMPE ASU