Weather on August 15
Salt Lake City, UT
55 Years of Data
Avg High
91°F
Avg Low
65°F
Warmest
2003
87°F avg
Coldest
2009
63°F avg
About This Date
August 15th in Salt Lake City, UT typically brings hot summer weather, with average highs around 91°F and lows near 65°F — a 26°F daily swing. Over 55 years of records, the warmest August 15th was in 2003 (87°F average), while the coldest was 2009 (63°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 15th dates historically, with the wettest August 15th recording 0.81" 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 15th in Salt Lake City, UT? 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 | 93° | 75° | 84° | — | — |
| 2024 | 94° | 69° | 81° | — | — |
| 2023 | 97° | 73° | 85° | — | — |
| 2022 | 96° | 69° | 83° | — | — |
| 2021 | 94° | 72° | 83° | — | — |
| 2020 | 96° | 67° | 81° | — | — |
| 2019 | 96° | 67° | 81° | — | — |
| 2018 | 91° | 69° | 80° | — | — |
| 2017 | 83° | 60° | 71° | — | — |
| 2016 | 94° | 73° | 83° | — | — |
| 2015 | 93° | 72° | 82° | — | — |
| 2014 | 93° | 70° | 81° | — | — |
| 2013 | 100° | 69° | 85° | — | — |
| 2012 | 97° | 70° | 83° | — | — |
| 2011 | 87° | 64° | 76° | 0.05" | — |
| 2010 | 96° | 59° | 78° | — | — |
| 2009coldest | 73° | 54° | 63° | 0.3" | — |
| 2008 | 85° | 61° | 73° | — | — |
| 2007 | 96° | 74° | 85° | — | — |
| 2006 | 94° | 71° | 82° | 0.08" | — |
| 2005 | 90° | 65° | 77° | — | — |
| 2004 | 91° | 69° | 80° | — | — |
| 2003warmest | 98° | 75° | 87° | — | — |
| 2002 | 94° | 63° | 78° | — | — |
| 2001 | 92° | 67° | 79° | — | — |
| 2000 | 95° | 67° | 81° | 0.15" | — |
| 1999 | 83° | 62° | 72° | — | — |
| 1998 | 93° | 69° | 81° | — | — |
| 1997 | 96° | 65° | 80° | — | — |
| 1996 | 95° | 67° | 81° | — | — |
| 1995 | 98° | 59° | 79° | — | — |
| 1994 | 100° | 68° | 84° | — | — |
| 1993 | 90° | 66° | 78° | — | — |
| 1992 | 98° | 69° | 84° | 0.08" | — |
| 1991 | 92° | 65° | 78° | 0.81" | — |
| 1990 | 85° | 70° | 77° | — | — |
| 1989 | 95° | 66° | 81° | — | — |
| 1988 | 95° | 64° | 80° | — | — |
| 1987 | 75° | 57° | 66° | 0.38" | — |
| 1986 | 94° | 61° | 77° | — | — |
| 1985 | 93° | 57° | 75° | — | — |
| 1984 | 89° | 69° | 79° | 0.46" | — |
| 1983 | 87° | 67° | 77° | 0.61" | — |
| 1982 | 94° | 69° | 81° | — | — |
| 1981 | 92° | 63° | 77° | — | — |
| 1980 | 79° | 62° | 70° | 0.03" | — |
| 1979 | 84° | 61° | 72° | 0.28" | — |
| 1978 | 82° | 49° | 65° | — | — |
| 1977 | 92° | 63° | 77° | — | — |
| 1976 | 85° | 62° | 73° | — | — |
| 1975 | 86° | 56° | 71° | — | — |
| 1974 | 90° | — | — | — | — |
| 1973 | 95° | 57° | 76° | — | — |
| 1972 | 88° | 64° | 76° | — | — |
| 1971 | 95° | 64° | 80° | — | — |
55 years of data from SALT LAKE CITY SUB SEW