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Boise, ID Weather on July 11
Boise hits 109°F on July 11, 2002 record
July 11 in Boise typically brings summer heat with an average high of 91°F, but the city has experienced far more extreme conditions. The record high of 109°F was set in 2002, while the coldest reading for this date reached just 41°F in 2000, showing the wide range of temperature swings possible during mid-summer. Across 55 years of recorded data, the average low settles at a cool 59°F.
What to Expect on July 11
Planning for July 11th in Boise, ID? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest July 11 ever in Boise?
The warmest July 11 in Boise, ID reached 109°F in 2002. That is 18°F above the long-term average high of 91°F.
What was the coldest July 11 ever in Boise?
The coldest July 11 in Boise, ID dropped to 44°F in 1997. That is 15°F below the long-term average low of 59°F.
What is the average temperature on July 11 in Boise?
On July 11, Boise averages a high of 91°F and a low of 59°F based on 55 years of NOAA weather observations from BOISE AIR TERMINAL.
How many years of weather data are available for July 11 in Boise?
We have 55 years of weather records for July 11 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 11 Weather History in Boise
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 91°F | 63°F | 0" | -- |
| 2024 | 105°F | 69°F | 0" | -- |
| 2023 | 93°F | 63°F | 0" | -- |
| 2022 | 93°F | 57°F | 0" | -- |
| 2021 | 98°F | 71°F | 0" | -- |
| 2020 | 101°F | 64°F | 0" | -- |
| 2019 | 96°F | 63°F | 0" | -- |
| 2018 | 91°F | 58°F | 0" | -- |
| 2017 | 91°F | 61°F | 0" | -- |
| 2016 | 74°F | 47°F | 0" | -- |
| 2015 | 86°F | 63°F | 0.05" | -- |
| 2014 | 100°F | 69°F | 0" | -- |
| 2013 | 90°F | 71°F | 0" | -- |
| 2012 | 100°F | 66°F | 0" | -- |
| 2011 | 95°F | 61°F | 0" | -- |
| 2010 | 95°F | 68°F | 0" | -- |
| 2009 | 93°F | 65°F | 0" | -- |
| 2008 | 84°F | 57°F | 0" | -- |
| 2007 | 99°F | 67°F | 0" | -- |
| 2006 | 101°F | 65°F | 0" | -- |
| 2005 | 96°F | 59°F | 0" | -- |
| 2004 | 85°F | 56°F | 0" | -- |
| 2003 | 102°F | 63°F | 0" | -- |
| 2002 | 109°F | 69°F | 0" | -- |
| 2001 | 92°F | 68°F | 0" | -- |
| 2000 | 97°F | 60°F | 0" | -- |
| 1999 | 98°F | 62°F | 0" | -- |
| 1998 | 87°F | 59°F | 0" | -- |
| 1997 | 74°F | 44°F | 0" | -- |
| 1996 | 92°F | 57°F | 0" | -- |
| 1995 | 88°F | 58°F | 0" | -- |
| 1994 | 92°F | 46°F | 0" | -- |
| 1993 | 88°F | 51°F | 0" | -- |
| 1992 | 76°F | 58°F | 0" | -- |
| 1991 | 92°F | 56°F | 0" | -- |
| 1990 | 104°F | 66°F | 0" | -- |
| 1989 | 97°F | 53°F | 0" | -- |
| 1988 | 89°F | 58°F | 0" | -- |
| 1987 | 79°F | 44°F | 0" | -- |
| 1986 | 80°F | 55°F | 0" | -- |
| 1985 | 88°F | 70°F | 0" | -- |
| 1984 | 98°F | 63°F | 0" | -- |
| 1983 | 86°F | 50°F | 0" | -- |
| 1982 | 91°F | 54°F | 0" | -- |
| 1981 | 86°F | 47°F | 0" | -- |
| 1980 | 91°F | 51°F | 0" | -- |
| 1979 | 82°F | 55°F | 0" | -- |
| 1978 | 83°F | 51°F | 0" | -- |
| 1977 | 90°F | 51°F | 0" | -- |
| 1976 | 92°F | 55°F | 0" | -- |
| 1975 | 88°F | 69°F | 0" | -- |
| 1974 | 76°F | 50°F | 0" | -- |
| 1973 | 89°F | 62°F | 0" | -- |
| 1972 | 87°F | 54°F | 0" | -- |
| 1971 | 77°F | 48°F | 0" | -- |
Based on 55 years of data from NOAA station: BOISE AIR TERMINAL
How Has July 11 Changed?
The last decade has been 1.0°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.