Weather on August 11
Phoenix, AZ
55 Years of Data
Avg High
105°F
Avg Low
79°F
Warmest
2003
102°F avg
Coldest
1971
83°F avg
About This Date
August 11th in Phoenix, AZ typically brings hot summer weather, with average highs around 105°F and lows near 79°F — a 26°F daily swing. Over 55 years of records, the warmest August 11th was in 2003 (102°F average), while the coldest was 1971 (83°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 16% of August 11th dates historically, with the wettest August 11th recording 2.03" of rain. The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.7°F cooler on this date compared to 20-30 years ago.
Planning for August 11th in Phoenix, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 106° | 88° | 97° | — | — |
| 2024 | 108° | 84° | 96° | — | — |
| 2023 | 105° | 82° | 94° | — | — |
| 2022 | 104° | 82° | 93° | — | — |
| 2021 | 96° | 78° | 87° | — | — |
| 2020 | 110° | 83° | 96° | — | — |
| 2019 | 101° | 85° | 93° | — | — |
| 2018 | 100° | 70° | 85° | — | — |
| 2017 | 105° | 76° | 90° | 2.03" | — |
| 2016 | 101° | 75° | 88° | 0.48" | — |
| 2015 | 103° | 79° | 91° | — | — |
| 2014 | 108° | 81° | 94° | — | — |
| 2013 | 105° | 73° | 89° | — | — |
| 2012 | 112° | 87° | 99° | — | — |
| 2011 | 104° | 82° | 93° | — | — |
| 2010 | 107° | 84° | 96° | — | — |
| 2009 | 104° | 82° | 93° | — | — |
| 2008 | 108° | 83° | 95° | — | — |
| 2007 | 106° | 83° | 94° | — | — |
| 2006 | 101° | 78° | 89° | — | — |
| 2005 | 99° | 78° | 88° | — | — |
| 2004 | 111° | 85° | 98° | — | — |
| 2003warmest | 115° | 89° | 102° | — | — |
| 2002 | 112° | 81° | 96° | — | — |
| 2001 | 106° | 77° | 91° | 0.43" | — |
| 2000 | 107° | 90° | 98° | — | — |
| 1999 | 101° | 73° | 87° | — | — |
| 1998 | 107° | 84° | 96° | — | — |
| 1997 | 104° | 81° | 92° | — | — |
| 1996 | 111° | 84° | 98° | — | — |
| 1995 | 109° | 83° | 96° | — | — |
| 1994 | 112° | 83° | 97° | — | — |
| 1993 | 109° | 78° | 94° | — | — |
| 1992 | 111° | 83° | 97° | — | — |
| 1991 | 96° | 72° | 84° | 0.66" | — |
| 1990 | 109° | 83° | 96° | — | — |
| 1989 | 101° | 76° | 88° | — | — |
| 1988 | 105° | 78° | 92° | — | — |
| 1987 | 104° | 72° | 88° | 1.07" | — |
| 1986 | 104° | 83° | 93° | — | — |
| 1985 | 102° | 78° | 90° | — | — |
| 1984 | 95° | 79° | 87° | 0.03" | — |
| 1983 | 100° | 79° | 89° | — | — |
| 1982 | 107° | 76° | 91° | 0.46" | — |
| 1981 | 100° | 68° | 84° | 0.15" | — |
| 1980 | 104° | 79° | 91° | — | — |
| 1979 | 104° | 76° | 90° | — | — |
| 1978 | 102° | 77° | 90° | — | — |
| 1977 | 107° | 77° | 92° | — | — |
| 1976 | 105° | 74° | 89° | — | — |
| 1975 | 104° | 77° | 91° | — | — |
| 1974 | 103° | 70° | 86° | — | — |
| 1973 | 104° | 78° | 91° | — | — |
| 1972 | 101° | 78° | 89° | — | — |
| 1971coldest | 99° | 68° | 83° | 1.35" | — |
55 years of data from BEARDSLEY