Weather on August 18
Yuma, AZ
55 Years of Data
Avg High
107°F
Avg Low
79°F
Warmest
2013
102°F avg
Coldest
1983
78°F avg
About This Date
August 18th in Yuma, AZ typically brings hot summer weather, with average highs around 107°F and lows near 79°F — a 28°F daily swing. Over 55 years of records, the warmest August 18th was in 2013 (102°F average), while the coldest was 1983 (78°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 18th dates historically. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Yuma, AZ? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 106° | 76° | 91° | — | — |
| 2024 | 111° | 81° | 96° | — | — |
| 2023 | 117° | 87° | 102° | — | — |
| 2022 | 109° | 84° | 97° | — | — |
| 2021 | 108° | 81° | 94° | — | — |
| 2020 | 117° | 85° | 101° | — | — |
| 2019 | 107° | 79° | 93° | — | — |
| 2018 | 107° | 85° | 96° | — | — |
| 2017 | 107° | 74° | 90° | — | — |
| 2016 | 111° | 86° | 99° | — | — |
| 2015 | 118° | 68° | 93° | — | — |
| 2014 | 112° | 72° | 92° | 0.15" | — |
| 2013warmest | 112° | 92° | 102° | — | — |
| 2012 | 100° | 83° | 91° | — | — |
| 2011 | 112° | 78° | 95° | — | — |
| 2010 | 111° | 76° | 93° | — | — |
| 2009 | 109° | 78° | 94° | — | — |
| 2008 | 108° | 78° | 93° | — | — |
| 2007 | 115° | 78° | 96° | — | — |
| 2006 | 111° | 73° | 92° | — | — |
| 2005 | 105° | 79° | 92° | — | — |
| 2004 | 109° | 74° | 91° | — | — |
| 2003 | 111° | 79° | 95° | — | — |
| 2002 | 109° | 79° | 94° | — | — |
| 2001 | 103° | 77° | 90° | — | — |
| 2000 | 107° | 79° | 93° | — | — |
| 1999 | 115° | 80° | 97° | — | — |
| 1998 | 103° | 83° | 93° | — | — |
| 1997 | 105° | 84° | 95° | — | — |
| 1996 | 106° | 82° | 94° | — | — |
| 1995 | 108° | 71° | 89° | — | — |
| 1994 | 109° | 81° | 95° | — | — |
| 1993 | 110° | 75° | 92° | — | — |
| 1992 | 113° | 89° | 101° | — | — |
| 1991 | 108° | 77° | 92° | — | — |
| 1990 | 108° | 78° | 93° | — | — |
| 1989 | 106° | 83° | 94° | — | — |
| 1988 | 111° | 84° | 98° | — | — |
| 1987 | 109° | 75° | 92° | — | — |
| 1986 | 106° | 80° | 93° | 0.48" | — |
| 1985 | 109° | 79° | 94° | — | — |
| 1984 | 97° | 74° | 85° | — | — |
| 1983coldest | 87° | 70° | 78° | 0.43" | — |
| 1982 | 110° | 77° | 93° | — | — |
| 1981 | 108° | 82° | 95° | — | — |
| 1980 | 103° | 76° | 89° | — | — |
| 1979 | 100° | 77° | 89° | — | — |
| 1978 | 103° | 77° | 90° | — | — |
| 1977 | 96° | 76° | 86° | — | — |
| 1976 | 96° | 71° | 84° | — | — |
| 1975 | 104° | 70° | 87° | — | — |
| 1974 | 109° | 76° | 92° | — | — |
| 1973 | 111° | 84° | 98° | — | — |
| 1972 | 97° | 71° | 84° | — | — |
| 1971 | 97° | 81° | 89° | — | — |
55 years of data from YUMA QUARTERMASTER DEPOT