Weather on August 21
Yuma, AZ
55 Years of Data
Avg High
106°F
Avg Low
79°F
Warmest
1986
100°F avg
Coldest
1971
83°F avg
About This Date
August 21st in Yuma, AZ typically brings hot summer weather, with average highs around 106°F and lows near 79°F — a 27°F daily swing. Over 55 years of records, the warmest August 21st was in 1986 (100°F average), while the coldest was 1971 (83°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 4% of August 21st dates historically, with the wettest August 21st recording 1.32" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 21st in Yuma, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 116° | 84° | 100° | — | — |
| 2024 | 106° | 86° | 96° | — | — |
| 2023 | 93° | 74° | 83° | — | — |
| 2022 | 101° | 81° | 91° | — | — |
| 2021 | 103° | 75° | 89° | — | — |
| 2020 | 109° | 83° | 96° | — | — |
| 2019 | 115° | 73° | 94° | — | — |
| 2018 | 110° | 81° | 95° | — | — |
| 2017 | 108° | 76° | 92° | — | — |
| 2016 | 100° | 81° | 90° | — | — |
| 2015 | 105° | 78° | 92° | — | — |
| 2014 | 104° | 72° | 88° | — | — |
| 2013 | 114° | 79° | 96° | — | — |
| 2012 | 107° | 83° | 95° | — | — |
| 2011 | 109° | 79° | 94° | — | — |
| 2010 | 112° | 79° | 95° | — | — |
| 2009 | 112° | 78° | 95° | — | — |
| 2008 | 111° | 74° | 92° | — | — |
| 2007 | 116° | 81° | 98° | — | — |
| 2006 | 115° | 82° | 98° | — | — |
| 2005 | 116° | 77° | 97° | — | — |
| 2004 | 108° | 68° | 88° | — | — |
| 2003 | 104° | 78° | 91° | — | — |
| 2002 | 105° | 70° | 87° | — | — |
| 2001 | 107° | 67° | 87° | — | — |
| 2000 | 107° | 93° | 100° | — | — |
| 1999 | 114° | 78° | 96° | — | — |
| 1998 | 111° | 80° | 96° | — | — |
| 1997 | 107° | 87° | 97° | — | — |
| 1996 | 108° | 84° | 96° | — | — |
| 1995 | 104° | 79° | 91° | — | — |
| 1994 | 108° | 85° | 96° | — | — |
| 1993 | 111° | 73° | 92° | — | — |
| 1992 | 99° | 85° | 92° | — | — |
| 1991 | 106° | 85° | 95° | — | — |
| 1990 | 106° | 75° | 90° | — | — |
| 1989 | 101° | 76° | 88° | — | — |
| 1988 | 96° | 79° | 87° | 0.81" | — |
| 1987 | 103° | 79° | 91° | — | — |
| 1986warmest | 113° | 87° | 100° | — | — |
| 1985 | 107° | 82° | 95° | — | — |
| 1984 | 101° | 76° | 88° | — | — |
| 1983 | 98° | 74° | 86° | — | — |
| 1982 | 107° | 89° | 98° | — | — |
| 1981 | 113° | 85° | 99° | — | — |
| 1980 | 105° | 73° | 89° | — | — |
| 1979 | 102° | 75° | 89° | — | — |
| 1978 | 108° | 81° | 94° | — | — |
| 1977 | 101° | 84° | 92° | — | — |
| 1976 | 104° | 76° | 90° | — | — |
| 1975 | 102° | 79° | 90° | — | — |
| 1974 | 102° | 76° | 89° | — | — |
| 1973 | 103° | 82° | 92° | — | — |
| 1972 | 108° | 75° | 91° | — | — |
| 1971coldest | 91° | 75° | 83° | 1.32" | — |
55 years of data from YUMA QUARTERMASTER DEPOT