Weather on September 18
Salt Lake City, UT
55 Years of Data
Avg High
79°F
Avg Low
52°F
Warmest
2014
79°F avg
Coldest
1988
48°F avg
About This Date
September 18th in Salt Lake City, UT typically brings pleasant fall weather, with average highs around 79°F and lows near 52°F — a 27°F daily swing. Over 55 years of records, the warmest September 18th was in 2014 (79°F average), while the coldest was 1988 (48°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 18th dates historically, with the wettest September 18th recording 4.57" of rain. The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.2°F warmer on this date compared to 20-30 years ago.
Planning for September 18th in Salt Lake City, UT? Great weather for outdoor activities.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 55° | 69° | — | — |
| 2024 | 73° | 50° | 62° | — | — |
| 2023 | 86° | 65° | 75° | — | — |
| 2022 | 88° | 60° | 74° | — | — |
| 2021 | 78° | 63° | 70° | 0.08" | — |
| 2020 | 88° | 67° | 77° | — | — |
| 2019 | 83° | 51° | 67° | — | — |
| 2018 | 88° | 63° | 75° | — | — |
| 2017 | 85° | 59° | 72° | — | — |
| 2016 | 88° | 57° | 72° | — | — |
| 2015 | 66° | 45° | 55° | — | — |
| 2014warmest | 92° | 67° | 79° | — | — |
| 2013 | 78° | 54° | 66° | — | — |
| 2012 | 84° | 55° | 70° | — | — |
| 2011 | 77° | 56° | 66° | — | — |
| 2010 | 91° | 62° | 77° | — | — |
| 2009 | 88° | 59° | 73° | — | — |
| 2008 | 84° | 57° | 71° | — | — |
| 2007 | 76° | 49° | 62° | — | — |
| 2006 | 67° | 41° | 54° | — | — |
| 2005 | 71° | 46° | 59° | — | — |
| 2004 | 89° | 57° | 73° | — | — |
| 2003 | 64° | 38° | 51° | — | — |
| 2002 | 65° | 49° | 57° | 0.66" | — |
| 2001 | 78° | 54° | 66° | — | — |
| 2000 | 79° | 57° | 68° | — | — |
| 1999 | 83° | 54° | 68° | — | — |
| 1998 | 90° | 60° | 75° | — | — |
| 1997 | 75° | 53° | 64° | 0.2" | — |
| 1996 | 60° | 39° | 50° | — | — |
| 1995 | 78° | 53° | 66° | — | — |
| 1994 | 88° | 60° | 74° | — | — |
| 1993 | 59° | 49° | 54° | 0.23" | — |
| 1992 | 80° | 53° | 67° | — | — |
| 1991 | 77° | 48° | 63° | — | — |
| 1990 | 75° | 54° | 64° | 0.41" | — |
| 1989 | 74° | 55° | 64° | — | — |
| 1988coldest | 58° | 38° | 48° | — | — |
| 1987 | 78° | 43° | 60° | — | — |
| 1986 | 63° | 48° | 55° | 0.41" | — |
| 1985 | 60° | 52° | 56° | 1.37" | — |
| 1984 | 90° | 59° | 74° | — | — |
| 1983 | 87° | 53° | 70° | — | — |
| 1982 | 76° | 53° | 64° | — | — |
| 1981 | 89° | 60° | 75° | — | — |
| 1980 | 90° | 60° | 75° | — | — |
| 1979 | 90° | 53° | 71° | — | — |
| 1978 | — | 32° | — | 4.57" | — |
| 1977 | 73° | 38° | 55° | — | — |
| 1976 | 78° | 35° | 57° | — | — |
| 1975 | 78° | 42° | 60° | — | — |
| 1974 | 82° | 53° | 68° | — | — |
| 1973 | 84° | 52° | 68° | — | — |
| 1972 | 85° | 61° | 73° | — | — |
| 1971 | 60° | 39° | 50° | — | — |
55 years of data from SALT LAKE CITY SUB SEW