Weather on June 18
Seattle, WA
55 Years of Data
Avg High
70°F
Avg Low
54°F
Warmest
1982
75°F avg
Coldest
2012
55°F avg
About This Date
June 18th in Seattle, WA typically brings pleasant summer weather, with average highs around 70°F and lows near 54°F. Over 55 years of records, the warmest June 18th was in 1982 (75°F average), while the coldest was 2012 (55°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 25% of June 18th dates historically, with the wettest June 18th recording 0.79" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for June 18th in Seattle, WA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 58° | 64° | — | — |
| 2024 | 69° | 52° | 60° | — | — |
| 2023 | 62° | 48° | 55° | 0.41" | — |
| 2022 | 63° | 53° | 58° | — | — |
| 2021 | 73° | 56° | 64° | — | — |
| 2020 | 75° | 54° | 64° | — | — |
| 2019 | 65° | 57° | 61° | — | — |
| 2018 | 87° | 60° | 74° | — | — |
| 2017 | 71° | 56° | 63° | — | — |
| 2016 | 65° | 51° | 58° | 0.1" | — |
| 2015 | 80° | 62° | 71° | — | — |
| 2014 | 69° | 55° | 62° | — | — |
| 2013 | 75° | 57° | 66° | — | — |
| 2012coldest | 61° | 50° | 55° | 0.61" | — |
| 2011 | 58° | 54° | 56° | 0.79" | — |
| 2010 | 69° | 55° | 62° | — | — |
| 2009 | 74° | 60° | 67° | — | — |
| 2008 | 63° | 50° | 56° | — | — |
| 2007 | 64° | 50° | 57° | — | — |
| 2006 | 66° | 54° | 60° | — | — |
| 2005 | 71° | 58° | 64° | — | — |
| 2004 | 86° | 63° | 74° | 0.08" | — |
| 2003 | 65° | 57° | 61° | — | — |
| 2002 | 65° | 53° | 59° | 0.46" | — |
| 2001 | 69° | 53° | 61° | — | — |
| 2000 | 66° | 55° | 61° | — | — |
| 1999 | 71° | 54° | 62° | — | — |
| 1998 | 60° | 51° | 56° | — | — |
| 1997 | 63° | 53° | 58° | 0.13" | — |
| 1996 | 67° | 49° | 58° | — | — |
| 1995 | 67° | 50° | 58° | 0.05" | — |
| 1994 | 65° | 52° | 58° | 0.33" | — |
| 1993 | 78° | 57° | 68° | — | — |
| 1992 | 78° | 50° | 64° | — | — |
| 1991 | 72° | 47° | 59° | — | — |
| 1990 | 73° | 53° | 63° | — | — |
| 1989 | 68° | 53° | 61° | — | — |
| 1988 | 70° | 57° | 63° | — | — |
| 1987 | 73° | 49° | 61° | — | — |
| 1986 | 63° | 56° | 59° | 0.33" | — |
| 1985 | 87° | 58° | 72° | — | — |
| 1984 | 67° | 50° | 58° | — | — |
| 1983 | 64° | 54° | 59° | 0.05" | — |
| 1982warmest | 90° | 61° | 75° | — | — |
| 1981 | 61° | 52° | 56° | 0.46" | — |
| 1980 | 70° | 47° | 58° | — | — |
| 1979 | 63° | 55° | 59° | 0.13" | — |
| 1978 | 71° | 53° | 62° | — | — |
| 1977 | 69° | 56° | 62° | — | — |
| 1976 | 80° | 56° | 68° | — | — |
| 1975 | 68° | 49° | 58° | — | — |
| 1974 | 78° | 54° | 66° | — | — |
| 1973 | 66° | 46° | 56° | — | — |
| 1972 | 70° | 55° | 62° | — | — |
| 1971 | 67° | 54° | 60° | 0.64" | — |
55 years of data from SEATTLE URBAN SITE