Weather on April 21
Tempe, AZ
55 Years of Data
About This Date
April 21st in Tempe, AZ typically brings warm spring weather, with average highs around 88°F and lows near 53°F — a 35°F daily swing. Over 56 years of records, the warmest April 21st was in 1989 (86°F average), while the coldest was 1973 (57°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 7% of April 21st dates historically, with the wettest April 21st recording 1.04" of rain. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for April 21st in Tempe, AZ? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 96° | 70° | 83° | — | — |
| 2025 | 91° | 56° | 73° | — | — |
| 2024 | 100° | 70° | 85° | — | — |
| 2023 | 90° | 50° | 70° | — | — |
| 2022 | 93° | 51° | 72° | — | — |
| 2021 | 92° | 58° | 75° | — | — |
| 2020 | 83° | 54° | 68° | — | — |
| 2019 | 90° | 75° | 82° | — | — |
| 2018 | 90° | — | — | — | — |
| 2017 | 93° | 59° | 76° | — | — |
| 2016 | 98° | 52° | 75° | — | — |
| 2015 | 90° | 39° | 64° | — | — |
| 2014 | 95° | 53° | 74° | — | — |
| 2013 | 93° | 44° | 69° | — | — |
| 2012 | 101° | — | — | — | — |
| 2011 | 91° | 57° | 74° | — | — |
| 2010 | 72° | 61° | 66° | — | — |
| 2009 | 100° | 30° | 65° | — | — |
| 2008 | 85° | 46° | 65° | — | — |
| 2007 | 75° | 40° | 57° | — | — |
| 2006 | 95° | 52° | 73° | — | — |
| 2005 | 86° | 56° | 71° | — | — |
| 2004 | 85° | 54° | 69° | — | — |
| 2003 | 85° | 58° | 71° | — | — |
| 2002 | 86° | 52° | 69° | — | — |
| 2001 | 78° | 38° | 58° | 0.13" | — |
| 2000 | 87° | 56° | 71° | — | — |
| 1999 | 90° | 57° | 73° | — | — |
| 1998 | 94° | 59° | 76° | — | — |
| 1997 | 94° | 64° | 79° | — | — |
| 1996 | 84° | 52° | 68° | — | — |
| 1995 | 71° | 49° | 60° | — | — |
| 1994 | 96° | 58° | 77° | — | — |
| 1993 | 95° | 60° | 78° | — | — |
| 1992 | 88° | 56° | 72° | — | — |
| 1991 | 81° | 56° | 68° | — | — |
| 1990 | 89° | 63° | 76° | — | — |
| 1989warmest | 102° | 70° | 86° | — | — |
| 1988 | 65° | 51° | 58° | 1.04" | — |
| 1987 | 94° | 63° | 78° | — | — |
| 1986 | 97° | 60° | 78° | — | — |
| 1985 | 80° | 57° | 69° | 0.2" | — |
| 1984 | 80° | 48° | 64° | — | — |
| 1983 | 73° | 53° | 63° | 0.13" | — |
| 1982 | 83° | 52° | 67° | — | — |
| 1981 | 88° | 50° | 69° | — | — |
| 1980 | 99° | 56° | 77° | — | — |
| 1979 | 88° | 46° | 67° | — | — |
| 1978 | 82° | 42° | 62° | — | — |
| 1977 | 87° | 40° | 63° | — | — |
| 1976 | 89° | 49° | 69° | — | — |
| 1975 | 85° | 47° | 66° | — | — |
| 1974 | 83° | 47° | 65° | — | — |
| 1973coldest | 75° | 39° | 57° | — | — |
| 1972 | 77° | 43° | 60° | — | — |
| 1971 | 76° | 42° | 59° | — | — |
Tempe, AZ Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Tempe, AZ Monthly Precipitation
Average rainfall per month, in inches.
Tempe, 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 Tempe, AZ
Tempe, AZ has no months that meet our "pleasant" threshold — every season has tradeoffs.