Weather on March 21
Tucson, AZ
55 Years of Data
Avg High
78°F
Avg Low
51°F
Warmest
2026
82°F avg
Coldest
1991
47°F avg
About This Date
March 21st in Tucson, AZ typically brings pleasant spring weather, with average highs around 78°F and lows near 51°F — a 27°F daily swing. Over 56 years of records, the warmest March 21st was in 2026 (82°F average), while the coldest was 1991 (47°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 9% of March 21st dates historically, with the wettest March 21st recording 0.99" 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 21st in Tucson, AZ? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 102° | 63° | 82° | — | — |
| 2025 | 81° | 44° | 62° | — | — |
| 2024 | 77° | 50° | 64° | — | — |
| 2023 | 74° | 59° | 66° | — | — |
| 2022 | 68° | 47° | 57° | 0.08" | — |
| 2021 | 79° | 57° | 68° | — | — |
| 2020 | 75° | 47° | 61° | — | — |
| 2019 | 68° | 48° | 58° | — | — |
| 2018 | 83° | 50° | 66° | — | — |
| 2017 | 92° | 62° | 77° | — | — |
| 2016 | 91° | 55° | 73° | — | — |
| 2015 | 80° | 52° | 66° | — | — |
| 2014 | 81° | 51° | 66° | — | — |
| 2013 | 79° | 56° | 67° | — | — |
| 2012 | 73° | 31° | 52° | — | — |
| 2011 | 80° | 47° | 63° | — | — |
| 2010 | 75° | 35° | 55° | — | — |
| 2009 | 88° | 50° | 69° | — | — |
| 2008 | 83° | 48° | 65° | — | — |
| 2007 | 78° | 64° | 71° | — | — |
| 2006 | 68° | 43° | 55° | — | — |
| 2005 | 68° | 47° | 57° | — | — |
| 2004 | 89° | 62° | 76° | — | — |
| 2003 | 69° | 47° | 58° | — | — |
| 2002 | 87° | 59° | 73° | — | — |
| 2001 | 87° | 55° | 71° | — | — |
| 2000 | 61° | 40° | 50° | — | — |
| 1999 | 85° | 49° | 67° | — | — |
| 1998 | 76° | 50° | 63° | — | — |
| 1997 | 92° | 58° | 75° | — | — |
| 1996 | 88° | 56° | 72° | — | — |
| 1995 | 80° | 62° | 71° | — | — |
| 1994 | 74° | 53° | 63° | — | — |
| 1993 | 82° | 60° | 71° | — | — |
| 1992 | 72° | 55° | 63° | — | — |
| 1991coldest | 52° | 42° | 47° | 0.91" | — |
| 1990 | 82° | 55° | 69° | — | — |
| 1989 | 82° | 47° | 64° | — | — |
| 1988 | 89° | 51° | 70° | — | — |
| 1987 | 73° | 46° | 60° | — | — |
| 1986 | 81° | 54° | 67° | — | — |
| 1985 | 77° | 49° | 63° | — | — |
| 1984 | 86° | 54° | 70° | — | — |
| 1983 | 68° | 47° | 57° | 0.51" | — |
| 1982 | 71° | 40° | 55° | — | — |
| 1981 | 69° | 50° | 60° | — | — |
| 1980 | 79° | 47° | 63° | — | — |
| 1979 | 59° | 44° | 52° | 0.99" | — |
| 1978 | 83° | 62° | 72° | — | — |
| 1977 | 79° | 42° | 60° | — | — |
| 1976 | 79° | 42° | 60° | — | — |
| 1975 | 80° | 62° | 71° | — | — |
| 1974 | 68° | 52° | 60° | — | — |
| 1973 | 64° | 47° | 55° | 0.28" | — |
| 1972 | 90° | 50° | 70° | — | — |
| 1971 | 82° | 44° | 63° | — | — |
56 years of data from TUCSON WFO