Weather on May 20
Gresham, OR
55 Years of Data
Avg High
68°F
Avg Low
48°F
Warmest
2023
70°F avg
Coldest
1975
49°F avg
About This Date
May 20th in Gresham, OR typically brings mild spring weather, with average highs around 68°F and lows near 48°F. Over 54 years of records, the warmest May 20th was in 2023 (70°F average), while the coldest was 1975 (49°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 37% of May 20th dates historically, with the wettest May 20th recording 1.5" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for May 20th in Gresham, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 50° | 56° | 0.2" | — |
| 2024 | 70° | 46° | 58° | — | — |
| 2023warmest | 82° | 58° | 70° | — | — |
| 2022 | 62° | 48° | 55° | — | — |
| 2021 | 58° | 44° | 51° | 0.41" | — |
| 2020 | 60° | 51° | 56° | 0.18" | — |
| 2019 | 60° | 51° | 56° | 0.13" | — |
| 2018 | 71° | 53° | 62° | — | — |
| 2017 | 71° | 56° | 63° | — | — |
| 2016 | 66° | 49° | 57° | — | — |
| 2015 | 75° | 55° | 65° | — | — |
| 2014 | 75° | 47° | 61° | — | — |
| 2013 | 72° | 47° | 59° | — | — |
| 2012 | 66° | 54° | 60° | 0.13" | — |
| 2011 | 75° | 43° | 59° | — | — |
| 2010 | 56° | 44° | 50° | 0.79" | — |
| 2009 | 65° | 42° | 53° | — | — |
| 2008 | 65° | 50° | 57° | 0.94" | — |
| 2007 | 55° | 47° | 51° | 1.22" | — |
| 2006 | 73° | 54° | 63° | — | — |
| 2005 | 60° | 45° | 52° | 0.69" | — |
| 2004 | 70° | 44° | 57° | — | — |
| 2003 | 66° | 45° | 55° | — | — |
| 2002 | 67° | 48° | 57° | 0.08" | — |
| 2001 | 72° | 39° | 55° | — | — |
| 2000 | 77° | 52° | 64° | — | — |
| 1999 | 61° | 45° | 53° | — | — |
| 1998 | 56° | 50° | 53° | 1.4" | — |
| 1997 | 85° | 48° | 66° | — | — |
| 1996 | 70° | 47° | 58° | — | — |
| 1995 | 81° | 47° | 64° | — | — |
| 1994 | 64° | 53° | 59° | — | — |
| 1993 | 84° | 53° | 69° | 1.27" | — |
| 1992 | 72° | 45° | 58° | 0.03" | — |
| 1991 | 56° | 50° | 53° | — | — |
| 1990 | 68° | 49° | 58° | 0.46" | — |
| 1989 | 66° | 39° | 53° | — | — |
| 1988 | 71° | 42° | 57° | — | — |
| 1987 | 68° | 40° | 54° | — | — |
| 1986 | 79° | 50° | 64° | 1.5" | — |
| 1985 | 71° | 54° | 62° | — | — |
| 1984 | 62° | 48° | 55° | 0.51" | — |
| 1983 | 78° | 47° | 62° | — | — |
| 1982 | 73° | 43° | 58° | — | — |
| 1981 | 64° | 49° | 56° | — | — |
| 1980 | 73° | 50° | 62° | — | — |
| 1979 | 80° | 46° | 63° | — | — |
| 1977 | 72° | 48° | 60° | — | — |
| 1976 | 53° | 46° | 50° | 0.64" | — |
| 1975coldest | 60° | 38° | 49° | 0.23" | — |
| 1974 | 61° | 47° | 54° | 0.08" | — |
| 1973 | 70° | — | — | — | — |
| 1972 | 78° | 48° | 63° | — | — |
| 1971 | 57° | 43° | 50° | 0.05" | — |
54 years of data from PORTLAND TROUTDALE AP