Weather on April 18
Portland, OR
55 Years of Data
Avg High
62°F
Avg Low
44°F
Warmest
2016
73°F avg
Coldest
2023
42°F avg
About This Date
April 18th in Portland, OR typically brings mild spring weather, with average highs around 62°F and lows near 44°F. Over 55 years of records, the warmest April 18th was in 2016 (73°F average), while the coldest was 2023 (42°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 47% of April 18th dates historically, with the wettest April 18th recording 1.4" of rain. The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
Planning for April 18th in Portland, OR? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 48° | 62° | — | — |
| 2024 | 68° | 43° | 55° | — | — |
| 2023coldest | 48° | 36° | 42° | 1.12" | — |
| 2022 | 53° | 42° | 48° | 1.24" | — |
| 2021 | 82° | 48° | 65° | — | — |
| 2020 | 59° | 47° | 53° | 0.18" | — |
| 2019 | 76° | 47° | 61° | — | — |
| 2018 | 62° | 42° | 52° | — | — |
| 2017 | 64° | 48° | 56° | 0.03" | — |
| 2016warmest | 89° | 58° | 73° | — | — |
| 2015 | 75° | 46° | 61° | — | — |
| 2014 | 59° | 39° | 49° | — | — |
| 2013 | 58° | 45° | 51° | — | — |
| 2012 | 58° | 46° | 52° | 0.48" | — |
| 2011 | 53° | 35° | 44° | 0.2" | — |
| 2010 | 74° | 46° | 60° | — | — |
| 2009 | 66° | 43° | 54° | — | — |
| 2008 | 49° | 38° | 43° | — | — |
| 2007 | 52° | 40° | 46° | 0.28" | — |
| 2006 | 64° | 36° | 50° | — | — |
| 2005 | 59° | 42° | 51° | 0.13" | — |
| 2004 | 58° | 44° | 51° | 0.1" | — |
| 2003 | 56° | 42° | 49° | 0.03" | — |
| 2002 | 57° | 42° | 50° | — | — |
| 2001 | 60° | 46° | 53° | — | — |
| 2000 | 66° | 48° | 57° | — | — |
| 1999 | 57° | 50° | 54° | 0.08" | — |
| 1998 | 59° | 46° | 53° | 0.18" | — |
| 1997 | 55° | 49° | 52° | 0.28" | — |
| 1996 | 50° | 42° | 46° | 1.4" | — |
| 1995 | 51° | 39° | 45° | 0.58" | — |
| 1994 | 75° | 53° | 64° | 0.03" | — |
| 1993 | 61° | 44° | 52° | 0.18" | — |
| 1992 | 63° | 45° | 54° | — | — |
| 1991 | 67° | 44° | 55° | — | — |
| 1990 | 62° | 48° | 55° | — | — |
| 1989 | 71° | 50° | 61° | — | — |
| 1988 | 65° | 45° | 55° | — | — |
| 1987 | 50° | 39° | 45° | 0.33" | — |
| 1986 | 57° | 40° | 48° | — | — |
| 1985 | 53° | 42° | 48° | 0.36" | — |
| 1984 | 61° | 46° | 53° | 0.41" | — |
| 1983 | 76° | 52° | 64° | — | — |
| 1982 | 52° | 36° | 44° | 0.08" | — |
| 1981 | 80° | 46° | 63° | — | — |
| 1980 | 70° | 46° | 58° | — | — |
| 1979 | 54° | 39° | 46° | 0.2" | — |
| 1978 | 68° | 46° | 57° | 0.18" | — |
| 1977 | 56° | 38° | 47° | 0.03" | — |
| 1976 | 57° | 39° | 48° | — | — |
| 1975 | 56° | 45° | 50° | 0.33" | — |
| 1974 | 61° | 46° | 53° | — | — |
| 1973 | 53° | 41° | 47° | 1.19" | — |
| 1972 | 56° | 35° | 45° | — | — |
| 1971 | 55° | 41° | 48° | — | — |
55 years of data from PORTLAND KGW-TV