Weather on October 21
Tucson, AZ
55 Years of Data
About This Date
October 21st in Tucson, AZ typically brings warm fall weather, with average highs around 84°F and lows near 58°F — a 26°F daily swing. Over 55 years of records, the warmest October 21st was in 2016 (84°F average), while the coldest was 1996 (57°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 21st dates historically, with the wettest October 21st recording 4.19" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Tucson, AZ? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 56° | 73° | — | — |
| 2024 | 89° | 50° | 70° | — | — |
| 2023 | 98° | 64° | 81° | — | — |
| 2022 | 91° | 59° | 75° | — | — |
| 2021 | 92° | 54° | 73° | — | — |
| 2020 | 95° | 61° | 78° | — | — |
| 2019 | 84° | 51° | 68° | — | — |
| 2018 | 86° | 65° | 75° | 0.89" | — |
| 2017 | 83° | 56° | 69° | — | — |
| 2016warmest | 96° | 71° | 84° | — | — |
| 2015 | 71° | 54° | 62° | 1.88" | — |
| 2014 | 86° | 62° | 74° | — | — |
| 2013 | 86° | 52° | 69° | — | — |
| 2012 | 87° | 57° | 72° | — | — |
| 2011 | 90° | 56° | 73° | — | — |
| 2010 | 70° | 54° | 62° | 0.81" | — |
| 2009 | 79° | 50° | 64° | — | — |
| 2008 | 91° | 56° | 73° | — | — |
| 2007 | 79° | 58° | 68° | — | — |
| 2006 | 82° | 52° | 67° | — | — |
| 2005 | 88° | 58° | 73° | — | — |
| 2004 | 82° | 52° | 67° | 0.71" | — |
| 2003 | 96° | 63° | 79° | — | — |
| 2002 | 82° | 63° | 72° | — | — |
| 2001 | 91° | 58° | 74° | — | — |
| 2000 | 70° | 61° | 65° | 0.43" | — |
| 1999 | 90° | 56° | 73° | — | — |
| 1998 | 78° | 63° | 70° | 0.23" | — |
| 1997 | 80° | 60° | 70° | 0.36" | — |
| 1996coldest | 64° | 50° | 57° | — | — |
| 1995 | 93° | 60° | 77° | — | — |
| 1994 | 86° | 60° | 73° | — | — |
| 1993 | 84° | 64° | 74° | — | — |
| 1992 | 88° | 63° | 75° | — | — |
| 1991 | 87° | 70° | 78° | 0.08" | — |
| 1990 | 79° | 46° | 62° | — | — |
| 1989 | 81° | 60° | 70° | 0.64" | — |
| 1988 | 86° | 64° | 75° | — | — |
| 1987 | 89° | 69° | 79° | — | — |
| 1986 | 79° | 48° | 63° | — | — |
| 1985 | 82° | 62° | 72° | — | — |
| 1984 | 72° | 56° | 64° | — | — |
| 1983 | 85° | 57° | 71° | — | — |
| 1982 | 86° | 53° | 70° | — | — |
| 1981 | 82° | 62° | 72° | — | — |
| 1980 | 81° | 58° | 69° | — | — |
| 1979 | 71° | 54° | 62° | 0.38" | — |
| 1978 | 76° | 62° | 69° | 4.19" | — |
| 1977 | 79° | 53° | 66° | — | — |
| 1976 | 83° | 60° | 71° | 0.89" | — |
| 1975 | 76° | 56° | 66° | 0.08" | — |
| 1974 | 82° | 65° | 73° | 0.1" | — |
| 1973 | 94° | 60° | 77° | — | — |
| 1972 | 70° | 50° | 60° | — | — |
| 1971 | 86° | 51° | 69° | — | — |
Tucson, AZ Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Tucson, AZ Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Tucson, AZ Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Tucson, AZ
Tucson, AZ has no months that meet our "pleasant" threshold — every season has tradeoffs.