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Boise, ID Weather on July 17
Boise hits 108°F on July 17, 1998 during summer peak heat
July 17 in Boise typically brings scorching heat with an average high of 92°F, but the city experienced an extreme record of 108°F back in 1998. The temperature swing across 55 years of records shows significant variability, with a record low of just 42°F set in 1986, demonstrating the desert climate's capacity for dramatic daily shifts. This date captures the intensity of Boise's peak summer season.
What to Expect on July 17
Planning for July 17th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest July 17 ever in Boise?
The warmest July 17 in Boise, ID reached 108°F in 1998. That is 15°F above the long-term average high of 93°F.
What was the coldest July 17 ever in Boise?
The coldest July 17 in Boise, ID dropped to 42°F in 1986. That is 19°F below the long-term average low of 61°F.
What is the average temperature on July 17 in Boise?
On July 17, Boise averages a high of 93°F and a low of 61°F based on 55 years of NOAA weather observations from BOISE AIR TERMINAL.
How many years of weather data are available for July 17 in Boise?
We have 55 years of weather records for July 17 in Boise, ID, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
July 17 Weather History in Boise
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 98°F | 64°F | 0" | -- |
| 2024 | 101°F | 70°F | 0.03" | -- |
| 2023 | 96°F | 75°F | 0" | -- |
| 2022 | 102°F | 66°F | 0" | -- |
| 2021 | 98°F | 62°F | 0" | -- |
| 2020 | 97°F | 63°F | 0" | -- |
| 2019 | 90°F | 59°F | 0" | -- |
| 2018 | 99°F | 63°F | 0" | -- |
| 2017 | 93°F | 60°F | 0" | -- |
| 2016 | 95°F | 58°F | 0" | -- |
| 2015 | 79°F | 56°F | 0" | -- |
| 2014 | 98°F | 71°F | 0" | -- |
| 2013 | 97°F | 71°F | 0" | -- |
| 2012 | 99°F | 64°F | 0" | -- |
| 2011 | 100°F | 57°F | 0" | -- |
| 2010 | 99°F | 66°F | 0" | -- |
| 2009 | 101°F | 66°F | 0" | -- |
| 2008 | 94°F | 61°F | 0" | -- |
| 2007 | 100°F | 76°F | 0.05" | -- |
| 2006 | 100°F | 66°F | 0" | -- |
| 2005 | 88°F | 56°F | 0" | -- |
| 2004 | 104°F | 75°F | 0.13" | -- |
| 2003 | 102°F | 65°F | 0" | -- |
| 2002 | 99°F | 73°F | 0" | -- |
| 2001 | 78°F | 52°F | 0" | -- |
| 2000 | 90°F | 69°F | 0" | -- |
| 1999 | 90°F | 58°F | 0" | -- |
| 1998 | 108°F | 68°F | 0" | -- |
| 1997 | 85°F | 63°F | 0" | -- |
| 1996 | 96°F | 60°F | 0" | -- |
| 1995 | 92°F | 54°F | 0" | -- |
| 1994 | 100°F | 64°F | 0" | -- |
| 1993 | 73°F | 51°F | 0" | -- |
| 1992 | 96°F | 60°F | 0" | -- |
| 1991 | 85°F | 56°F | 0" | -- |
| 1990 | 96°F | 56°F | 0" | -- |
| 1989 | 85°F | 57°F | 0.03" | -- |
| 1988 | 88°F | 54°F | 0" | -- |
| 1987 | 70°F | 47°F | 0" | -- |
| 1986 | 79°F | 42°F | 0" | -- |
| 1985 | 92°F | 58°F | 0" | -- |
| 1984 | 96°F | 56°F | 0" | -- |
| 1983 | 84°F | 53°F | 0" | -- |
| 1982 | 82°F | 47°F | 0" | -- |
| 1981 | 94°F | 58°F | 0" | -- |
| 1980 | 83°F | 57°F | 0" | -- |
| 1979 | 102°F | 62°F | 0" | -- |
| 1978 | 80°F | 52°F | 0" | -- |
| 1977 | 96°F | 56°F | 0" | -- |
| 1976 | 84°F | 62°F | 0.05" | -- |
| 1975 | 85°F | 65°F | 0" | -- |
| 1974 | 94°F | 60°F | 0" | -- |
| 1973 | 98°F | 59°F | 0" | -- |
| 1972 | 90°F | 59°F | 0" | -- |
| 1971 | 99°F | 69°F | 0" | -- |
Based on 55 years of data from NOAA station: BOISE AIR TERMINAL
How Has July 17 Changed?
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for Boise, ID, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.