Weather on July 30
Boise, ID
55 Years of Data
Avg High
94°F
Avg Low
63°F
Warmest
2003
89°F avg
Coldest
2001
60°F avg
About This Date
July 30th in Boise, ID typically brings hot summer weather, with average highs around 94°F and lows near 63°F — a 31°F daily swing. Over 55 years of records, the warmest July 30th was in 2003 (89°F average), while the coldest was 2001 (60°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 11% of July 30th dates historically, with the wettest July 30th recording 1.98" of rain. The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.4°F warmer on this date compared to 20-30 years ago.
Planning for July 30th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 97° | 67° | 82° | — | — |
| 2024 | 86° | 64° | 75° | 0.03" | — |
| 2023 | 99° | 68° | 83° | — | — |
| 2022 | 103° | 70° | 86° | — | — |
| 2021 | 100° | 77° | 89° | — | — |
| 2020 | 105° | 68° | 87° | — | — |
| 2019 | 96° | 69° | 83° | — | — |
| 2018 | 100° | 70° | 85° | — | — |
| 2017 | 99° | 67° | 83° | — | — |
| 2016 | 100° | 69° | 85° | — | — |
| 2015 | 95° | 62° | 79° | — | — |
| 2014 | 96° | 72° | 84° | — | — |
| 2013 | 95° | 65° | 80° | — | — |
| 2012 | 97° | 65° | 81° | — | — |
| 2011 | 101° | 65° | 83° | — | — |
| 2010 | 99° | 69° | 84° | — | — |
| 2009 | 93° | 64° | 79° | — | — |
| 2008 | 85° | 61° | 73° | — | — |
| 2007 | 96° | 65° | 80° | — | — |
| 2006 | 85° | 62° | 73° | — | — |
| 2005 | 98° | 68° | 83° | — | — |
| 2004 | 97° | 63° | 80° | — | — |
| 2003warmest | 106° | 73° | 89° | — | — |
| 2002 | 95° | 64° | 80° | — | — |
| 2001coldest | 69° | 52° | 60° | 0.08" | — |
| 2000 | 100° | 66° | 83° | — | — |
| 1999 | 92° | 62° | 77° | — | — |
| 1998 | 93° | 66° | 80° | 0.89" | — |
| 1997 | 87° | 61° | 74° | 0.23" | — |
| 1996 | 94° | 63° | 78° | — | — |
| 1995 | 76° | 48° | 62° | — | — |
| 1994 | 97° | 79° | 88° | — | — |
| 1993 | 84° | 51° | 68° | — | — |
| 1992 | 96° | 56° | 76° | — | — |
| 1991 | 95° | 56° | 75° | — | — |
| 1990 | 104° | 68° | 86° | — | — |
| 1989 | 97° | 58° | 77° | — | — |
| 1988 | 102° | 62° | 82° | — | — |
| 1987 | 95° | 61° | 78° | — | — |
| 1986 | 84° | 49° | 66° | — | — |
| 1985 | 75° | 58° | 66° | 1.98" | — |
| 1984 | 91° | 59° | 75° | — | — |
| 1983 | 99° | 57° | 78° | — | — |
| 1982 | 98° | 66° | 82° | — | — |
| 1981 | 83° | 50° | 66° | — | — |
| 1980 | 96° | 68° | 82° | — | — |
| 1979 | 90° | 56° | 73° | — | — |
| 1978 | 99° | 62° | 80° | — | — |
| 1977 | 85° | 49° | 67° | — | — |
| 1976 | 93° | 64° | 79° | 0.05" | — |
| 1975 | 75° | 50° | 63° | — | — |
| 1974 | 95° | 61° | 78° | — | — |
| 1973 | 99° | 64° | 81° | — | — |
| 1972 | 92° | 67° | 79° | — | — |
| 1971 | 100° | 72° | 86° | — | — |
55 years of data from BOISE AIR TERMINAL