Weather on April 21
Phoenix, AZ
55 Years of Data
Avg High
88°F
Avg Low
56°F
Warmest
1989
84°F avg
Coldest
2001
55°F avg
About This Date
April 21st in Phoenix, AZ typically brings warm spring weather, with average highs around 88°F and lows near 56°F — a 32°F daily swing. Over 55 years of records, the warmest April 21st was in 1989 (84°F average), while the coldest was 2001 (55°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 9% of April 21st dates historically, with the wettest April 21st recording 0.74" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Phoenix, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 55° | 72° | — | — |
| 2024 | 98° | 61° | 79° | — | — |
| 2023 | 89° | 61° | 75° | — | — |
| 2022 | 91° | 60° | 76° | — | — |
| 2021 | 90° | 58° | 74° | — | — |
| 2020 | 84° | 57° | 71° | — | — |
| 2019 | 88° | 64° | 76° | — | — |
| 2018 | 80° | 50° | 65° | — | — |
| 2017 | 95° | 59° | 77° | — | — |
| 2016 | 97° | 61° | 79° | — | — |
| 2015 | 92° | 61° | 76° | — | — |
| 2014 | 96° | 63° | 79° | — | — |
| 2013 | 93° | 59° | 76° | — | — |
| 2012 | 101° | 65° | 83° | — | — |
| 2011 | 90° | 62° | 76° | — | — |
| 2010 | 87° | 62° | 75° | — | — |
| 2009 | 101° | 66° | 83° | — | — |
| 2008 | 82° | 55° | 69° | — | — |
| 2007 | 78° | 49° | 63° | 0.3" | — |
| 2006 | 90° | 55° | 72° | — | — |
| 2005 | 85° | 49° | 67° | — | — |
| 2004 | 87° | 54° | 70° | — | — |
| 2003 | 85° | 59° | 72° | — | — |
| 2002 | 85° | 50° | 67° | — | — |
| 2001coldest | 66° | 44° | 55° | 0.61" | — |
| 2000 | 92° | 67° | 79° | — | — |
| 1999 | 94° | 64° | 79° | — | — |
| 1998 | 95° | 51° | 73° | — | — |
| 1997 | 97° | 67° | 82° | — | — |
| 1996 | 85° | 54° | 69° | — | — |
| 1995 | 71° | 49° | 60° | — | — |
| 1994 | 99° | 65° | 82° | — | — |
| 1993 | 96° | 53° | 75° | — | — |
| 1992 | 89° | 56° | 72° | — | — |
| 1991 | 86° | 56° | 71° | — | — |
| 1990 | 91° | 62° | 77° | — | — |
| 1989warmest | 101° | 68° | 84° | — | — |
| 1988 | 79° | 52° | 65° | 0.74" | — |
| 1987 | 92° | 68° | 80° | — | — |
| 1986 | 95° | 59° | 77° | — | — |
| 1985 | 78° | 57° | 68° | 0.18" | — |
| 1984 | 80° | 50° | 65° | — | — |
| 1983 | 72° | 54° | 63° | 0.51" | — |
| 1982 | 83° | 52° | 67° | — | — |
| 1981 | 87° | 52° | 69° | — | — |
| 1980 | 93° | 64° | 79° | — | — |
| 1979 | 90° | 47° | 68° | — | — |
| 1978 | 82° | 43° | 62° | — | — |
| 1977 | 88° | 48° | 68° | — | — |
| 1976 | 91° | 57° | 74° | — | — |
| 1975 | 89° | 51° | 70° | — | — |
| 1974 | 89° | 50° | 70° | — | — |
| 1973 | 77° | 41° | 59° | — | — |
| 1972 | 85° | 46° | 65° | — | — |
| 1971 | 75° | 47° | 61° | — | — |
55 years of data from YOUNGTOWN