Weather on May 21 at Saguaro
Saguaro National Park
Based on 55 years of data from Tucson, AZ
Elevation Note: Saguaro sits at 2,700 ft. Expect temperatures 9°F cooler than the data shown below, which comes from Tucson, AZ at a lower elevation.
Planning Your Visit
May 21st in Saguaro National Park (via Tucson, AZ) typically brings hot spring weather, with average highs around 92°F and lows near 63°F — a 29°F daily swing. Over 55 years of records, the warmest May 21st was in 2003 (90°F average), while the coldest was 1975 (65°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 21st dates historically, with the wettest May 21st recording 1.02" of rain. The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
Planning for May 21st in Saguaro? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 100°F | 63°F | 0" | -- |
| 2024 | 94°F | 64°F | 0" | 0" |
| 2023 | 95°F | 66°F | 0" | 0" |
| 2022 | 94°F | 68°F | 0" | 0" |
| 2021 | 89°F | 68°F | 0" | 0" |
| 2020 | 89°F | 53°F | 0" | 0" |
| 2019 | 81°F | 50°F | 0" | 0" |
| 2018 | 95°F | 63°F | 0" | 0" |
| 2017 | 97°F | 59°F | 0" | 0" |
| 2016 | 89°F | 65°F | 0" | 0" |
| 2015 | 87°F | 60°F | 0" | 0" |
| 2014 | 92°F | 62°F | 0" | 0" |
| 2013 | 95°F | 62°F | 0" | 0" |
| 2012 | 105°F | 60°F | 0" | 0" |
| 2011 | 90°F | 52°F | 0" | 0" |
| 2010 | 96°F | 61°F | 0" | 0" |
| 2009 | 83°F | 63°F | 1.02" | 0" |
| 2008 | 102°F | 62°F | 0" | 0" |
| 2007 | 91°F | 69°F | 0" | 0" |
| 2006 | 98°F | 73°F | 0" | 0" |
| 2005 | 106°F | 73°F | 0" | 0" |
| 2004 | 90°F | 67°F | 0" | 0" |
| 2003 | 102°F | 78°F | 0" | 0" |
| 2002 | 77°F | 62°F | 0" | 0" |
| 2001 | 95°F | 67°F | 0" | 0" |
| 2000 | 100°F | 67°F | 0" | 0" |
| 1999 | 96°F | 61°F | 0" | 0" |
| 1998 | 87°F | 66°F | 0" | 0" |
| 1997 | 93°F | 65°F | 0" | 0" |
| 1996 | 100°F | 70°F | 0" | 0" |
| 1995 | 98°F | 70°F | 0" | 0" |
| 1994 | 96°F | 60°F | 0" | 0" |
| 1993 | 94°F | 71°F | 0" | 0" |
| 1992 | 75°F | 60°F | 0.15" | 0" |
| 1991 | 90°F | 64°F | 0" | 0" |
| 1990 | 97°F | 62°F | 0" | 0" |
| 1989 | 100°F | 66°F | 0" | 0" |
| 1988 | 97°F | 61°F | 0" | 0" |
| 1987 | 83°F | 61°F | 0" | 0" |
| 1986 | 94°F | 72°F | 0" | 0" |
| 1985 | 89°F | 64°F | 0" | 0" |
| 1984 | 97°F | 66°F | 0" | 0" |
| 1983 | 91°F | 60°F | 0" | 0" |
| 1982 | 98°F | 64°F | 0" | 0" |
| 1981 | 82°F | 56°F | 0" | 0" |
| 1980 | 96°F | 66°F | 0" | 0" |
| 1979 | 82°F | 56°F | 0" | 0" |
| 1978 | 98°F | 66°F | 0" | 0" |
| 1977 | 89°F | 56°F | 0" | 0" |
| 1976 | 92°F | 63°F | 0" | 0" |
| 1975 | 75°F | 56°F | 0" | 0" |
| 1974 | 92°F | 49°F | 0" | 0" |
| 1973 | 94°F | 64°F | 0" | 0" |
| 1972 | 85°F | 56°F | 0" | 0" |
| 1971 | 91°F | 64°F | 0" | 0" |