Weather on September 18
Salem, OR
55 Years of Data
Avg High
74°F
Avg Low
49°F
Warmest
1991
73°F avg
Coldest
2004
52°F avg
About This Date
September 18th in Salem, OR typically brings pleasant fall weather, with average highs around 74°F and lows near 49°F — a 25°F daily swing. Over 55 years of records, the warmest September 18th was in 1991 (73°F average), while the coldest was 2004 (52°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 35% of September 18th dates historically, with the wettest September 18th recording 2.87" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 18th in Salem, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 78° | 57° | 68° | — | — |
| 2024 | 76° | 56° | 66° | — | — |
| 2023 | 74° | 53° | 63° | — | — |
| 2022 | 77° | 54° | 65° | — | — |
| 2021 | 68° | 57° | 63° | 2.87" | — |
| 2020 | 67° | 56° | 61° | 1.3" | — |
| 2019 | 65° | 51° | 58° | 0.64" | — |
| 2018 | 72° | 44° | 58° | — | — |
| 2017 | 63° | 53° | 58° | 1.09" | — |
| 2016 | 73° | 50° | 62° | — | — |
| 2015 | 75° | 50° | 63° | — | — |
| 2014 | 74° | 58° | 66° | 0.03" | — |
| 2013 | 74° | 50° | 62° | — | — |
| 2012 | 86° | 47° | 66° | — | — |
| 2011 | 79° | 62° | 70° | 0.05" | — |
| 2010 | 64° | 53° | 59° | 2.67" | — |
| 2009 | 83° | 45° | 64° | — | — |
| 2008 | 64° | 50° | 57° | — | — |
| 2007 | 66° | 48° | 57° | — | — |
| 2006 | 72° | 56° | 64° | 0.2" | — |
| 2005 | 74° | 41° | 57° | — | — |
| 2004coldest | 56° | 48° | 52° | 0.86" | — |
| 2003 | 75° | 43° | 59° | — | — |
| 2002 | 74° | 47° | 60° | — | — |
| 2001 | 70° | 50° | 60° | — | — |
| 2000 | 83° | 57° | 70° | — | — |
| 1999 | 92° | 49° | 70° | — | — |
| 1998 | 69° | 57° | 63° | 1.12" | — |
| 1997 | 68° | 48° | 58° | 0.74" | — |
| 1996 | 66° | 43° | 54° | 0.1" | — |
| 1995 | 76° | 48° | 62° | — | — |
| 1994 | 83° | 52° | 67° | — | — |
| 1993 | 73° | 40° | 56° | — | — |
| 1992 | 80° | 42° | 61° | — | — |
| 1991warmest | 93° | 53° | 73° | — | — |
| 1990 | 79° | 48° | 63° | — | — |
| 1989 | 71° | 37° | 54° | — | — |
| 1988 | 74° | 34° | 54° | 0.91" | — |
| 1987 | 81° | 42° | 61° | — | — |
| 1986 | 68° | 48° | 58° | 0.1" | — |
| 1985 | 66° | 39° | 53° | — | — |
| 1984 | 86° | 50° | 68° | — | — |
| 1983 | 68° | 43° | 55° | — | — |
| 1982 | 79° | 51° | 65° | 0.2" | — |
| 1981 | 81° | 50° | 65° | 1.14" | — |
| 1980 | 63° | 55° | 59° | 0.41" | — |
| 1979 | 81° | 53° | 67° | — | — |
| 1978 | 66° | 45° | 55° | — | — |
| 1977 | 62° | 55° | 59° | 0.76" | — |
| 1976 | 73° | 50° | 62° | — | — |
| 1975 | 83° | 38° | 60° | — | — |
| 1974 | 90° | 48° | 69° | — | — |
| 1973 | 68° | 55° | 62° | — | — |
| 1972 | 61° | 50° | 55° | 0.33" | — |
| 1971 | 82° | 39° | 61° | — | — |
55 years of data from SALEM AP (MCNARY FIELD)