Weather on August 19
Boise, ID
55 Years of Data
Avg High
89°F
Avg Low
60°F
Warmest
1992
85°F avg
Coldest
1975
57°F avg
About This Date
August 19th in Boise, ID typically brings warm summer weather, with average highs around 89°F and lows near 60°F — a 29°F daily swing. Over 55 years of records, the warmest August 19th was in 1992 (85°F average), while the coldest was 1975 (57°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 11% of August 19th dates historically. The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.4°F warmer on this date compared to 20-30 years ago.
Planning for August 19th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 65° | 80° | — | — |
| 2024 | 96° | 67° | 81° | — | — |
| 2023 | 86° | 66° | 76° | — | — |
| 2022 | 96° | 73° | 85° | 0.13" | — |
| 2021 | 80° | 52° | 66° | — | — |
| 2020 | 95° | 72° | 83° | — | — |
| 2019 | 95° | 63° | 79° | — | — |
| 2018 | 97° | 65° | 81° | — | — |
| 2017 | 87° | 58° | 72° | — | — |
| 2016 | 93° | 61° | 77° | — | — |
| 2015 | 87° | 61° | 74° | — | — |
| 2014 | 94° | 67° | 80° | — | — |
| 2013 | 96° | 63° | 79° | — | — |
| 2012 | 91° | 72° | 81° | — | — |
| 2011 | 91° | 55° | 73° | — | — |
| 2010 | 93° | 65° | 79° | — | — |
| 2009 | 92° | 61° | 76° | — | — |
| 2008 | 86° | 65° | 75° | — | — |
| 2007 | 77° | 57° | 67° | — | — |
| 2006 | 90° | 59° | 74° | — | — |
| 2005 | 91° | 57° | 74° | — | — |
| 2004 | 90° | 64° | 77° | — | — |
| 2003 | 102° | 67° | 84° | — | — |
| 2002 | 87° | 58° | 72° | — | — |
| 2001 | 87° | 56° | 71° | — | — |
| 2000 | 84° | 53° | 69° | — | — |
| 1999 | 94° | 66° | 80° | — | — |
| 1998 | 89° | 51° | 70° | — | — |
| 1997 | 95° | 62° | 79° | — | — |
| 1996 | 88° | 53° | 70° | — | — |
| 1995 | 83° | 48° | 65° | — | — |
| 1994 | 93° | 56° | 74° | — | — |
| 1993 | 98° | 55° | 77° | — | — |
| 1992warmest | 101° | 70° | 85° | — | — |
| 1991 | 98° | 68° | 83° | — | — |
| 1990 | 73° | 55° | 64° | — | — |
| 1989 | 86° | 56° | 71° | 0.1" | — |
| 1988 | 91° | 52° | 71° | — | — |
| 1987 | 86° | 51° | 69° | — | — |
| 1986 | 92° | 68° | 80° | — | — |
| 1985 | 83° | 52° | 67° | — | — |
| 1984 | 83° | 58° | 70° | — | — |
| 1983 | 79° | 62° | 70° | 0.03" | — |
| 1982 | 93° | 60° | 77° | — | — |
| 1981 | 94° | 64° | 79° | 0.3" | — |
| 1980 | 74° | 42° | 58° | — | — |
| 1979 | 86° | 56° | 71° | — | — |
| 1978 | 85° | 54° | 69° | — | — |
| 1977 | 97° | 69° | 83° | — | — |
| 1976 | 79° | 48° | 63° | — | — |
| 1975coldest | 59° | 56° | 57° | 0.15" | — |
| 1974 | 70° | 54° | 62° | 0.05" | — |
| 1973 | 95° | 55° | 75° | — | — |
| 1972 | 88° | 62° | 75° | — | — |
| 1971 | 101° | 61° | 81° | — | — |
55 years of data from BOISE AIR TERMINAL