Weather on July 15
Boise, ID
55 Years of Data
Avg High
93°F
Avg Low
60°F
Warmest
2007
88°F avg
Coldest
1983
57°F avg
About This Date
July 15th in Boise, ID typically brings hot summer weather, with average highs around 93°F and lows near 60°F — a 33°F daily swing. Over 55 years of records, the warmest July 15th was in 2007 (88°F average), while the coldest was 1983 (57°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 4% of July 15th dates historically. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for July 15th in Boise, ID? 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 | 91° | 65° | 78° | — | — |
| 2024 | 99° | 76° | 87° | — | — |
| 2023 | 101° | 65° | 83° | — | — |
| 2022 | 100° | 70° | 85° | — | — |
| 2021 | 98° | 70° | 84° | — | — |
| 2020 | 89° | 54° | 71° | — | — |
| 2019 | 91° | 61° | 76° | — | — |
| 2018 | 97° | 64° | 80° | — | — |
| 2017 | 100° | 69° | 85° | — | — |
| 2016 | 90° | 61° | 75° | — | — |
| 2015 | 88° | 61° | 74° | — | — |
| 2014 | 96° | 69° | 83° | — | — |
| 2013 | 100° | 64° | 82° | — | — |
| 2012 | 90° | 63° | 76° | — | — |
| 2011 | 89° | 56° | 72° | — | — |
| 2010 | 95° | 58° | 76° | — | — |
| 2009 | 95° | 62° | 79° | — | — |
| 2008 | 97° | 69° | 83° | — | — |
| 2007warmest | 102° | 73° | 88° | — | — |
| 2006 | 99° | 65° | 82° | — | — |
| 2005 | 105° | 65° | 85° | — | — |
| 2004 | 98° | 68° | 83° | — | — |
| 2003 | 101° | 64° | 82° | — | — |
| 2002 | 98° | 68° | 83° | — | — |
| 2001 | 87° | 60° | 74° | 0.2" | — |
| 2000 | 88° | 58° | 73° | — | — |
| 1999 | 82° | 50° | 66° | — | — |
| 1998 | 98° | 62° | 80° | — | — |
| 1997 | 95° | 61° | 78° | — | — |
| 1996 | 90° | 68° | 79° | — | — |
| 1995 | 89° | 55° | 72° | — | — |
| 1994 | 94° | 56° | 75° | — | — |
| 1993 | 75° | 51° | 63° | — | — |
| 1992 | 87° | 52° | 69° | — | — |
| 1991 | 95° | 61° | 78° | — | — |
| 1990 | 97° | 57° | 77° | — | — |
| 1989 | 92° | 67° | 79° | — | — |
| 1988 | 91° | 58° | 74° | — | — |
| 1987 | 99° | 62° | 80° | — | — |
| 1986 | 85° | 50° | 67° | — | — |
| 1985 | 96° | 62° | 79° | — | — |
| 1984 | 93° | 56° | 74° | — | — |
| 1983coldest | 71° | 43° | 57° | — | — |
| 1982 | 75° | 47° | 61° | — | — |
| 1981 | 90° | 50° | 70° | — | — |
| 1980 | 85° | 49° | 67° | — | — |
| 1979 | 90° | 49° | 69° | — | — |
| 1978 | 96° | 66° | 81° | 0.05" | — |
| 1977 | 96° | 56° | 76° | — | — |
| 1976 | 94° | 50° | 72° | — | — |
| 1975 | 90° | 56° | 73° | — | — |
| 1974 | 94° | 65° | 79° | — | — |
| 1973 | 95° | 62° | 79° | — | — |
| 1972 | 89° | 52° | 70° | — | — |
| 1971 | 98° | 58° | 78° | — | — |
55 years of data from BOISE AIR TERMINAL