American Falls, ID
Idaho · Records since 1892–2025
Records for August 11
🔥 Record High
August 11, 2018
+13° from 89° normal❄ Record Low
August 11, 1907
-22° from 56° normalAll-Time Records — American Falls
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 102°F | August 11, 2018 |
| 2 | 102°F | August 11, 1898 |
| 3 | 99°F | August 11, 1915 |
| 4 | 97°F | August 11, 1996 |
| 5 | 97°F | August 11, 1919 |
| 6 | 97°F | August 11, 1897 |
| 7 | 96°F | August 11, 1906 |
| 8 | 95°F | August 11, 1988 |
| 9 | 95°F | August 11, 1960 |
| 10 | 95°F | August 11, 1916 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 34°F | August 11, 1907 |
| 2 | 35°F | August 11, 1914 |
| 3 | 38°F | August 11, 1913 |
| 4 | 39°F | August 11, 1919 |
| 5 | 40°F | August 11, 1916 |
Heat Wave Summary — American Falls
threshold: 95°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date0 of 0 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1893–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — American Falls
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 3, 1915 – Aug 21, 1915 | 19 | 99°F (Aug 5) | 97°F | 50°F |
| 2 | Jul 1, 1917 – Jul 17, 1917 | 17 | 102°F (Jul 8) | 98°F | 46°F |
| 3 | Jul 15, 1901 – Jul 26, 1901 | 12 | 103°F (Jul 22) | 98°F | 54°F |
| 4 | Jun 19, 1919 – Jun 28, 1919 | 10 | 101°F (Jun 25) | 98°F | 44°F |
| 5 | Jul 18, 2013 – Jul 27, 2013 | 10 | 100°F (Jul 19) | 97°F | 59°F |
| 6 | Jul 2, 2017 – Jul 10, 2017 | 9 | 103°F (Jul 6) | 99°F | 59°F |
| 7 | Jul 12, 1925 – Jul 19, 1925 | 8 | 106°F (Jul 14) | 102°F | 61°F |
| 8 | Jun 8, 1918 – Jun 15, 1918 | 8 | 103°F (Jun 13) | 99°F | 57°F |
| 9 | Jun 27, 2013 – Jul 4, 2013 | 8 | 101°F (Jun 29) | 99°F | 62°F |
| 10 | Jun 27, 2015 – Jul 4, 2015 | 8 | 99°F (Jun 27) | 98°F | 63°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
Above-Normal Summer Nights Per Year
Average June–August Low by Decade
Overnight lows · complete decades only
Precipitation
Actual vs. 1991–2020 full-month and full-season normals
Monthly Precipitation — Last 24 Months
Blue = actual · dashed line = monthly normal
Annual Precipitation Per Year (1970–2026)
Blue = above average · tan = below average · gold = 2026 (partial)
Heavy Rain Days Per Year (≥ 1.0")
Compare year-to-year changes in days with heavy rainfall (≥ 1.0")
Month in Review — November 2025
Average temperature · November 2025
743rd-warmest month on record
2nd-warmest November of 116 on record
+8.4° vs. 35.9° average (1991–2020)Average November Temperature by Year
1893–2025 · 2025 highlighted
Warmest Novembers on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 1899 | 46.8°F |
| 2 | 2025 | 44.3°F |
| 3 | 1999 | 42.7°F |
| 4 | 1965 | 42.4°F |
| 5 | 2021 | 41.8°F |
| 6 | 2016 | 41.7°F |
| 7 | 1953 | 41.5°F |
| 8 | 1949 | 41.3°F |
| 9 | 2012 | 41.3°F |
| 10 | 1954 | 40.9°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2021 | 77.8°F |
| 2 | July 2013 | 77.2°F |
| 3 | July 2018 | 76.6°F |
| 4 | July 2017 | 76.3°F |
| 5 | July 2022 | 75.9°F |
| 6 | July 2012 | 75.6°F |
| 7 | July 1988 | 75.4°F |
| 8 | August 1981 | 75.3°F |
| 9 | July 1925 | 75.1°F |
| 10 | July 2014 | 75.1°F |
Nearby Stations — November 2025
How the same month ranked at the closest reporting stations
| Station | Avg Temp | November Rank |
|---|---|---|
| American Falls, ID | 44.3°F | 2nd of 116 |
| Pocatello, ID | 41.7°F | 4th of 87 |
| Burley, ID | 43.7°F | 3rd of 105 |
| Jerome, ID | 44.7°F | 2nd of 107 |
| Challis, ID | 39.2°F | 1st of 99 |