Weather on August 13
Boise, ID
55 Years of Data
Avg High
91°F
Avg Low
60°F
Warmest
2015
89°F avg
Coldest
1995
59°F avg
About This Date
August 13th in Boise, ID typically brings hot summer weather, with average highs around 91°F and lows near 60°F — a 31°F daily swing. Over 55 years of records, the warmest August 13th was in 2015 (89°F average), while the coldest was 1995 (59°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 11% of August 13th dates historically, with the wettest August 13th recording 4.09" 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 August 13th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 98° | 70° | 84° | — | — |
| 2024 | 89° | 70° | 79° | — | — |
| 2023 | 93° | 59° | 76° | — | — |
| 2022 | 95° | 66° | 81° | — | — |
| 2021 | 98° | 66° | 82° | — | — |
| 2020 | 90° | 56° | 73° | — | — |
| 2019 | 91° | 59° | 75° | — | — |
| 2018 | 94° | 57° | 75° | — | — |
| 2017 | 83° | 62° | 72° | 0.2" | — |
| 2016 | 96° | 62° | 79° | — | — |
| 2015warmest | 106° | 72° | 89° | — | — |
| 2014 | 88° | 65° | 76° | 0.15" | — |
| 2013 | 95° | 64° | 80° | — | — |
| 2012 | 98° | 67° | 82° | — | — |
| 2011 | 91° | 63° | 77° | — | — |
| 2010 | 89° | 60° | 75° | — | — |
| 2009 | 82° | 61° | 71° | — | — |
| 2008 | 94° | 61° | 77° | — | — |
| 2007 | 95° | 56° | 75° | — | — |
| 2006 | 86° | 52° | 69° | — | — |
| 2005 | 85° | 54° | 69° | — | — |
| 2004 | 100° | 69° | 85° | — | — |
| 2003 | 93° | 61° | 77° | — | — |
| 2002 | 91° | 56° | 73° | — | — |
| 2001 | 94° | 69° | 81° | — | — |
| 2000 | 92° | 57° | 74° | — | — |
| 1999 | 83° | 57° | 70° | 0.03" | — |
| 1998 | 100° | 63° | 81° | — | — |
| 1997 | 90° | 61° | 75° | — | — |
| 1996 | 98° | 75° | 87° | — | — |
| 1995coldest | 71° | 46° | 59° | — | — |
| 1994 | 101° | 68° | 84° | — | — |
| 1993 | 86° | 56° | 71° | — | — |
| 1992 | 102° | 68° | 85° | — | — |
| 1991 | 92° | 55° | 73° | — | — |
| 1990 | 100° | 66° | 83° | — | — |
| 1989 | 91° | 58° | 74° | — | — |
| 1988 | 84° | 60° | 72° | — | — |
| 1987 | 71° | 52° | 61° | 0.28" | — |
| 1986 | 85° | 51° | 68° | — | — |
| 1985 | 81° | 47° | 64° | — | — |
| 1984 | 86° | 58° | 72° | — | — |
| 1983 | 94° | 56° | 75° | — | — |
| 1982 | 93° | 56° | 74° | — | — |
| 1981 | 101° | 59° | 80° | — | — |
| 1980 | 90° | 53° | 71° | — | — |
| 1979 | 75° | 61° | 68° | 4.09" | — |
| 1978 | 70° | 51° | 60° | 0.28" | — |
| 1977 | 98° | 59° | 79° | — | — |
| 1976 | 90° | 54° | 72° | — | — |
| 1975 | 91° | 57° | 74° | — | — |
| 1974 | 81° | 51° | 66° | — | — |
| 1973 | 96° | 69° | 83° | — | — |
| 1972 | 80° | 62° | 71° | — | — |
| 1971 | 103° | 66° | 84° | — | — |
55 years of data from BOISE AIR TERMINAL