Weather on August 18 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
August 18th in Saguaro National Park (via Tucson, AZ) typically brings hot summer weather, with average highs around 99°F and lows near 75°F. Over 55 years of records, the warmest August 18th was in 2020 (96°F average), while the coldest was 1984 (77°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 22% of August 18th dates historically, with the wettest August 18th recording 2.13" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Saguaro? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 102°F | 79°F | 0" | -- |
| 2024 | 98°F | 76°F | 0.05" | 0" |
| 2023 | 99°F | 72°F | 2.13" | 0" |
| 2022 | 95°F | 73°F | 0" | 0" |
| 2021 | 90°F | 75°F | 0.05" | 0" |
| 2020 | 108°F | 84°F | 0" | 0" |
| 2019 | 102°F | 79°F | 0" | 0" |
| 2018 | 99°F | 78°F | 0" | 0" |
| 2017 | 98°F | 70°F | 0" | 0" |
| 2016 | 100°F | 76°F | 0" | 0" |
| 2015 | 102°F | 78°F | 0" | 0" |
| 2014 | 94°F | 73°F | 0" | 0" |
| 2013 | 107°F | 82°F | 0" | 0" |
| 2012 | 94°F | 72°F | 0" | 0" |
| 2011 | 105°F | 72°F | 0.13" | 0" |
| 2010 | 103°F | 74°F | 0" | 0" |
| 2009 | 107°F | 70°F | 0" | 0" |
| 2008 | 98°F | 76°F | 0" | 0" |
| 2007 | 103°F | 79°F | 0" | 0" |
| 2006 | 97°F | 74°F | 0" | 0" |
| 2005 | 96°F | 75°F | 0" | 0" |
| 2004 | 95°F | 73°F | 0.2" | 0" |
| 2003 | 101°F | 78°F | 0.1" | 0" |
| 2002 | 98°F | 76°F | 0" | 0" |
| 2001 | 96°F | 73°F | 0" | 0" |
| 2000 | 93°F | 71°F | 0.03" | 0" |
| 1999 | 96°F | 76°F | 0" | 0" |
| 1998 | 95°F | 73°F | 0" | 0" |
| 1997 | 98°F | 77°F | 0" | 0" |
| 1996 | 95°F | 78°F | 0.28" | 0" |
| 1995 | 96°F | 76°F | 0" | 0" |
| 1994 | 102°F | 85°F | 0" | 0" |
| 1993 | 97°F | 79°F | 0" | 0" |
| 1992 | 106°F | 77°F | 0" | 0" |
| 1991 | 103°F | 80°F | 0.08" | 0" |
| 1990 | 94°F | 72°F | 0" | 0" |
| 1989 | 96°F | 76°F | 0" | 0" |
| 1988 | 102°F | 80°F | 0" | 0" |
| 1987 | 102°F | 76°F | 0" | 0" |
| 1986 | 95°F | 72°F | 0" | 0" |
| 1985 | 102°F | 78°F | 0" | 0" |
| 1984 | 85°F | 69°F | 0.41" | 0" |
| 1983 | 91°F | 70°F | 0.25" | 0" |
| 1982 | 100°F | 77°F | 0" | 0" |
| 1981 | 99°F | 79°F | 0" | 0" |
| 1980 | 99°F | 73°F | 0" | 0" |
| 1979 | 94°F | 65°F | 0" | 0" |
| 1978 | 99°F | 76°F | 0" | 0" |
| 1977 | 100°F | 78°F | 0" | 0" |
| 1976 | 100°F | 74°F | 0" | 0" |
| 1975 | 102°F | 70°F | 0" | 0" |
| 1974 | 98°F | 77°F | 0" | 0" |
| 1973 | 107°F | 74°F | 0.13" | 0" |
| 1972 | 96°F | 76°F | 0" | 0" |
| 1971 | 90°F | 71°F | 0" | 0" |