Weather on September 15
Salt Lake City, UT
55 Years of Data
Avg High
82°F
Avg Low
54°F
Warmest
1990
81°F avg
Coldest
1991
54°F avg
About This Date
September 15th in Salt Lake City, UT typically brings warm fall weather, with average highs around 82°F and lows near 54°F — a 28°F daily swing. Over 55 years of records, the warmest September 15th was in 1990 (81°F average), while the coldest was 1991 (54°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 11% of September 15th dates historically, with the wettest September 15th recording 1.98" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for September 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 | 79° | 60° | 69° | — | — |
| 2024 | 89° | 65° | 77° | — | — |
| 2023 | 83° | 55° | 69° | — | — |
| 2022 | 78° | 60° | 69° | 0.03" | — |
| 2021 | 89° | 59° | 74° | — | — |
| 2020 | 90° | 60° | 75° | — | — |
| 2019 | 92° | 65° | 78° | — | — |
| 2018 | 93° | 64° | 79° | — | — |
| 2017 | 66° | 53° | 60° | 1.09" | — |
| 2016 | 68° | 53° | 61° | — | — |
| 2015 | 72° | 57° | 64° | 1.6" | — |
| 2014 | 89° | 64° | 77° | — | — |
| 2013 | 82° | 58° | 70° | — | — |
| 2012 | 89° | 57° | 73° | — | — |
| 2011 | 80° | 60° | 70° | — | — |
| 2010 | 83° | 52° | 67° | — | — |
| 2009 | 75° | 57° | 66° | — | — |
| 2008 | 84° | 51° | 68° | — | — |
| 2007 | 89° | 59° | 74° | — | — |
| 2006 | 73° | 43° | 58° | 1.98" | — |
| 2005 | 81° | 47° | 64° | — | — |
| 2004 | 74° | 46° | 60° | — | — |
| 2003 | 86° | 52° | 69° | — | — |
| 2002 | 90° | 58° | 74° | — | — |
| 2001 | 83° | 53° | 68° | — | — |
| 2000 | 97° | 59° | 78° | — | — |
| 1999 | 80° | 54° | 67° | — | — |
| 1998 | 87° | 58° | 72° | — | — |
| 1997 | 86° | 53° | 70° | 0.41" | — |
| 1996 | 82° | 53° | 68° | — | — |
| 1995 | 93° | 57° | 75° | — | — |
| 1994 | 75° | 48° | 62° | — | — |
| 1993 | 81° | 54° | 67° | — | — |
| 1992 | 88° | 60° | 74° | — | — |
| 1991coldest | 66° | 42° | 54° | — | — |
| 1990warmest | 91° | 72° | 81° | — | — |
| 1989 | 84° | 49° | 66° | — | — |
| 1988 | 78° | 46° | 62° | — | — |
| 1987 | 84° | 53° | 69° | — | — |
| 1986 | 79° | 59° | 69° | — | — |
| 1985 | 75° | 55° | 65° | — | — |
| 1984 | 85° | 59° | 72° | — | — |
| 1983 | 82° | 53° | 68° | — | — |
| 1982 | 71° | 51° | 61° | — | — |
| 1981 | 87° | 54° | 70° | — | — |
| 1980 | 85° | 57° | 71° | — | — |
| 1979 | 84° | 46° | 65° | — | — |
| 1978 | 74° | 52° | 63° | — | — |
| 1977 | 80° | 51° | 66° | 0.13" | — |
| 1976 | 83° | 54° | 68° | — | — |
| 1975 | 81° | 55° | 68° | — | — |
| 1974 | 74° | 42° | 58° | — | — |
| 1973 | 78° | 48° | 63° | — | — |
| 1972 | 80° | 43° | 61° | — | — |
| 1971 | 71° | 40° | 55° | — | — |
55 years of data from SALT LAKE CITY SUB SEW