Weather on August 22
Boise, ID
55 Years of Data
Avg High
87°F
Avg Low
58°F
Warmest
2005
84°F avg
Coldest
1978
61°F avg
About This Date
August 22nd in Boise, ID typically brings warm summer weather, with average highs around 87°F and lows near 58°F — a 29°F daily swing. Over 55 years of records, the warmest August 22nd was in 2005 (84°F average), while the coldest was 1978 (61°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 13% of August 22nd dates historically, with the wettest August 22nd recording 2.26" of rain. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for August 22nd in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 60° | 78° | — | — |
| 2024 | 95° | 66° | 81° | — | — |
| 2023 | 87° | 63° | 75° | 2.26" | — |
| 2022 | 98° | 70° | 84° | — | — |
| 2021 | 84° | 52° | 68° | — | — |
| 2020 | 90° | 60° | 75° | — | — |
| 2019 | 83° | 62° | 72° | — | — |
| 2018 | 86° | 59° | 73° | — | — |
| 2017 | 93° | 62° | 78° | — | — |
| 2016 | 86° | 58° | 72° | — | — |
| 2015 | 82° | 53° | 68° | — | — |
| 2014 | 81° | 59° | 70° | — | — |
| 2013 | 95° | 65° | 80° | 1.07" | — |
| 2012 | 90° | 60° | 75° | — | — |
| 2011 | 99° | 68° | 83° | — | — |
| 2010 | 81° | 57° | 69° | — | — |
| 2009 | 94° | 62° | 78° | — | — |
| 2008 | 82° | 48° | 65° | — | — |
| 2007 | 83° | 55° | 69° | — | — |
| 2006 | 96° | 63° | 79° | — | — |
| 2005warmest | 96° | 71° | 84° | — | — |
| 2004 | 77° | 54° | 65° | 0.25" | — |
| 2003 | 85° | 63° | 74° | 0.71" | — |
| 2002 | 79° | 50° | 64° | — | — |
| 2001 | 91° | 60° | 76° | — | — |
| 2000 | 90° | 54° | 72° | — | — |
| 1999 | 91° | 56° | 73° | — | — |
| 1998 | 90° | 54° | 72° | — | — |
| 1997 | 97° | 64° | 80° | — | — |
| 1996 | 86° | 52° | 69° | — | — |
| 1995 | 95° | 61° | 78° | — | — |
| 1994 | 78° | 57° | 68° | — | — |
| 1993 | 83° | 48° | 65° | — | — |
| 1992 | 73° | 50° | 62° | — | — |
| 1991 | 98° | 63° | 80° | — | — |
| 1990 | 78° | 54° | 66° | — | — |
| 1989 | 88° | 58° | 73° | 0.03" | — |
| 1988 | 85° | 45° | 65° | — | — |
| 1987 | 93° | 57° | 75° | — | — |
| 1986 | 92° | 59° | 75° | — | — |
| 1985 | 82° | 55° | 69° | — | — |
| 1984 | 93° | 66° | 80° | 1.78" | — |
| 1983 | 80° | 54° | 67° | — | — |
| 1982 | 94° | 61° | 77° | — | — |
| 1981 | 91° | 48° | 70° | — | — |
| 1980 | 83° | 54° | 68° | — | — |
| 1979 | 90° | 56° | 73° | — | — |
| 1978coldest | 70° | 53° | 61° | — | — |
| 1977 | 91° | 62° | 77° | — | — |
| 1976 | 84° | 62° | 73° | 0.64" | — |
| 1975 | 85° | 61° | 73° | — | — |
| 1974 | 83° | 59° | 71° | — | — |
| 1973 | 89° | 63° | 76° | — | — |
| 1972 | 84° | 58° | 71° | — | — |
| 1971 | 87° | 57° | 72° | — | — |
55 years of data from BOISE AIR TERMINAL