Weather on August 31
Spokane, WA
55 Years of Data
Avg High
79°F
Avg Low
52°F
Warmest
2025
82°F avg
Coldest
1973
53°F avg
About This Date
August 31st in Spokane, WA typically brings pleasant summer weather, with average highs around 79°F and lows near 52°F — a 27°F daily swing. Over 55 years of records, the warmest August 31st was in 2025 (82°F average), while the coldest was 1973 (53°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 31st dates historically, with the wettest August 31st recording 1.32" of rain. The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.5°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Spokane, WA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 100° | 65° | 82° | — | — |
| 2024 | 99° | 53° | 76° | — | — |
| 2023 | 70° | 55° | 62° | 0.28" | — |
| 2022 | 103° | 56° | 79° | — | — |
| 2021 | 71° | 51° | 61° | — | — |
| 2020 | 74° | 56° | 65° | — | — |
| 2019 | 91° | 57° | 74° | — | — |
| 2018 | 77° | 54° | 65° | — | — |
| 2017 | 85° | 60° | 72° | — | — |
| 2016 | 84° | 50° | 67° | — | — |
| 2015 | 73° | 53° | 63° | — | — |
| 2014 | 74° | 51° | 62° | — | — |
| 2013 | 87° | 50° | 69° | — | — |
| 2012 | 84° | 45° | 64° | — | — |
| 2011 | 71° | 51° | 61° | 0.79" | — |
| 2010 | 64° | 46° | 55° | 0.56" | — |
| 2009 | 88° | 60° | 74° | — | — |
| 2008 | 68° | 44° | 56° | — | — |
| 2007 | 89° | 60° | 75° | 0.15" | — |
| 2006 | 72° | 41° | 56° | 0.03" | — |
| 2005 | 79° | 46° | 62° | — | — |
| 2004 | 89° | 52° | 70° | — | — |
| 2003 | 89° | 48° | 69° | — | — |
| 2002 | 84° | 50° | 67° | — | — |
| 2001 | 85° | 59° | 72° | — | — |
| 2000 | 78° | 47° | 62° | — | — |
| 1999 | 64° | 42° | 53° | 0.03" | — |
| 1998 | 96° | 54° | 75° | — | — |
| 1997 | 83° | 52° | 67° | — | — |
| 1996 | 75° | 47° | 61° | — | — |
| 1995 | 83° | 48° | 65° | — | — |
| 1994 | 81° | 54° | 67° | — | — |
| 1993 | 75° | 45° | 60° | — | — |
| 1992 | 80° | 59° | 70° | — | — |
| 1991 | 86° | 53° | 70° | — | — |
| 1990 | 74° | 49° | 61° | — | — |
| 1989 | 71° | 50° | 61° | — | — |
| 1988 | 84° | 47° | 65° | — | — |
| 1987 | 90° | 55° | 72° | — | — |
| 1986 | 74° | 56° | 65° | 0.28" | — |
| 1985 | 69° | 46° | 58° | — | — |
| 1984 | 76° | 54° | 65° | — | — |
| 1983 | 88° | 62° | 75° | — | — |
| 1982 | 71° | 50° | 61° | — | — |
| 1981 | 76° | 46° | 61° | — | — |
| 1980 | 70° | 54° | 62° | — | — |
| 1979 | 72° | 55° | 63° | 0.08" | — |
| 1978 | 67° | 54° | 60° | 0.84" | — |
| 1977 | 73° | 47° | 60° | — | — |
| 1976 | 90° | 56° | 73° | — | — |
| 1975 | 64° | 47° | 55° | — | — |
| 1974 | 87° | 51° | 69° | — | — |
| 1973coldest | 62° | 45° | 53° | 0.51" | — |
| 1972 | 77° | 47° | 62° | — | — |
| 1971 | 66° | 52° | 59° | 1.32" | — |
55 years of data from SPOKANE FELTS FLD