Weather on September 30
Gresham, OR
55 Years of Data
Avg High
72°F
Avg Low
49°F
Warmest
1993
71°F avg
Coldest
1971
50°F avg
About This Date
September 30th in Gresham, OR typically brings pleasant fall weather, with average highs around 72°F and lows near 49°F. Over 52 years of records, the warmest September 30th was in 1993 (71°F average), while the coldest was 1971 (50°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 35% of September 30th dates historically, with the wettest September 30th recording 5.31" of rain. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for September 30th in Gresham, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 48° | 61° | 0.1" | — |
| 2024 | 74° | 42° | 58° | — | — |
| 2023 | 70° | 45° | 57° | — | — |
| 2022 | 74° | 56° | 65° | — | — |
| 2021 | 64° | 56° | 60° | 0.69" | — |
| 2020 | 83° | 54° | 68° | — | — |
| 2019 | 60° | 41° | 51° | — | — |
| 2018 | 70° | 48° | 59° | — | — |
| 2017 | 66° | 48° | 57° | 0.66" | — |
| 2016 | 70° | 42° | 56° | — | — |
| 2015 | 72° | 46° | 59° | — | — |
| 2014 | 68° | 49° | 58° | 0.3" | — |
| 2013 | 61° | 52° | 56° | 1.02" | — |
| 2012 | 75° | 42° | 59° | — | — |
| 2011 | 73° | 53° | 63° | — | — |
| 2010 | 83° | 52° | 67° | — | — |
| 2009 | 61° | 45° | 53° | 0.1" | — |
| 2008 | 76° | 52° | 64° | — | — |
| 2007 | 56° | 51° | 53° | 2.36" | — |
| 2006 | 71° | 46° | 59° | 0.03" | — |
| 2005 | 68° | 54° | 61° | 5.31" | — |
| 2004 | 71° | 49° | 60° | — | — |
| 2003 | 73° | 53° | 63° | — | — |
| 2002 | 56° | 47° | 51° | 2.41" | — |
| 2001 | 83° | 52° | 67° | 0.03" | — |
| 2000 | 68° | 63° | 65° | 3.12" | — |
| 1999 | 64° | 44° | 54° | — | — |
| 1998 | 81° | 49° | 65° | 0.03" | — |
| 1997 | 80° | 52° | 66° | 0.03" | — |
| 1996 | 83° | 48° | 65° | — | — |
| 1994 | 66° | 59° | 63° | — | — |
| 1993warmest | 90° | 52° | 71° | — | — |
| 1992 | 79° | 50° | 64° | — | — |
| 1991 | 83° | 53° | 68° | — | — |
| 1990 | 76° | 49° | 62° | — | — |
| 1989 | 76° | 42° | 59° | 1.96" | — |
| 1988 | 84° | 43° | 63° | — | — |
| 1987 | 84° | 51° | 68° | — | — |
| 1986 | 63° | 46° | 54° | 0.03" | — |
| 1983 | 69° | 35° | 52° | — | — |
| 1982 | 60° | 43° | 51° | — | — |
| 1981 | 64° | 45° | 54° | — | — |
| 1980 | 78° | 50° | 64° | — | — |
| 1979 | 77° | 45° | 61° | — | — |
| 1978 | 78° | 50° | 64° | — | — |
| 1977 | 56° | 50° | 53° | 1.57" | — |
| 1976 | 74° | 56° | 65° | — | — |
| 1975 | 81° | 51° | 66° | — | — |
| 1974 | 78° | 44° | 61° | — | — |
| 1973 | 69° | 46° | 58° | — | — |
| 1972 | 71° | 43° | 57° | — | — |
| 1971coldest | 58° | 43° | 50° | 0.13" | — |
52 years of data from PORTLAND TROUTDALE AP