Weather on August 18
Spokane, WA
55 Years of Data
Avg High
84°F
Avg Low
56°F
Warmest
2020
86°F avg
Coldest
1980
54°F avg
About This Date
August 18th in Spokane, WA typically brings warm summer weather, with average highs around 84°F and lows near 56°F — a 28°F daily swing. Over 55 years of records, the warmest August 18th was in 2020 (86°F average), while the coldest was 1980 (54°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 5% of August 18th dates historically, with the wettest August 18th recording 0.94" of rain. The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.2°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Spokane, WA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 56° | 69° | — | — |
| 2024 | 86° | 61° | 73° | — | — |
| 2023 | 90° | 64° | 77° | — | — |
| 2022 | 100° | 63° | 81° | — | — |
| 2021 | 76° | 54° | 65° | — | — |
| 2020warmest | 97° | 75° | 86° | — | — |
| 2019 | 83° | 56° | 69° | — | — |
| 2018 | 83° | 59° | 71° | — | — |
| 2017 | 86° | 56° | 71° | — | — |
| 2016 | 93° | 67° | 80° | — | — |
| 2015 | 88° | 59° | 73° | — | — |
| 2014 | 91° | 63° | 77° | — | — |
| 2013 | 85° | 58° | 71° | — | — |
| 2012 | 96° | 63° | 79° | — | — |
| 2011 | 80° | 53° | 67° | — | — |
| 2010 | 87° | 62° | 75° | — | — |
| 2009 | 90° | 58° | 74° | — | — |
| 2008 | 95° | 62° | 79° | 0.15" | — |
| 2007 | 78° | 52° | 65° | — | — |
| 2006 | 86° | 56° | 71° | — | — |
| 2005 | 76° | 50° | 63° | — | — |
| 2004 | 88° | 64° | 76° | — | — |
| 2003 | 90° | 57° | 73° | — | — |
| 2002 | 81° | 48° | 64° | — | — |
| 2001 | 79° | 57° | 68° | — | — |
| 2000 | 78° | 53° | 66° | — | — |
| 1999 | 96° | 63° | 79° | — | — |
| 1998 | 74° | 48° | 61° | — | — |
| 1997 | 85° | 56° | 70° | — | — |
| 1996 | 76° | 44° | 60° | — | — |
| 1995 | 69° | 41° | 55° | — | — |
| 1994 | 87° | 52° | 69° | — | — |
| 1993 | 79° | 51° | 65° | — | — |
| 1992 | 99° | 66° | 82° | — | — |
| 1991 | 95° | 61° | 78° | — | — |
| 1990 | 71° | 57° | 64° | — | — |
| 1989 | 82° | 45° | 63° | — | — |
| 1988 | 75° | 49° | 62° | — | — |
| 1987 | 78° | 47° | 62° | — | — |
| 1986 | 90° | 59° | 74° | — | — |
| 1985 | 88° | 51° | 69° | — | — |
| 1984 | 83° | 58° | 70° | — | — |
| 1983 | 86° | 60° | 73° | — | — |
| 1982 | 83° | 54° | 68° | — | — |
| 1981 | 95° | 57° | 76° | — | — |
| 1980coldest | 61° | 47° | 54° | 0.25" | — |
| 1979 | 90° | 60° | 75° | — | — |
| 1978 | 72° | 50° | 61° | — | — |
| 1977 | 100° | 58° | 79° | — | — |
| 1976 | 78° | 50° | 64° | — | — |
| 1975 | 63° | 53° | 58° | 0.94" | — |
| 1974 | 73° | 52° | 62° | — | — |
| 1973 | 73° | 41° | 57° | — | — |
| 1972 | 78° | 51° | 65° | — | — |
| 1971 | 89° | 51° | 70° | — | — |
55 years of data from SPOKANE