Jerome, ID
Idaho · Records since 1915–2026
Records for August 11
🔥 Record High
August 11, 1940
+14° from 89° normal❄ Record Low
August 11, 1947
-16° from 58° normalAll-Time Records — Jerome
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 103°F | August 11, 1940 |
| 2 | 101°F | August 11, 1970 |
| 3 | 100°F | August 11, 1988 |
| 4 | 100°F | August 11, 1984 |
| 5 | 99°F | August 11, 2018 |
| 6 | 99°F | August 11, 1996 |
| 7 | 99°F | August 11, 1958 |
| 8 | 99°F | August 11, 1931 |
| 9 | 98°F | August 11, 1972 |
| 10 | 98°F | August 11, 1969 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 42°F | August 11, 1947 |
| 2 | 47°F | August 11, 1985 |
| 3 | 47°F | August 11, 1949 |
| 4 | 47°F | August 11, 1948 |
| 5 | 47°F | August 11, 1932 |
Heat Wave Summary — Jerome
threshold: 97°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date145 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1916–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Jerome
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 17, 1931 – Jul 28, 1931 | 12 | 106°F (Jul 20) | 101°F | 65°F |
| 2 | Aug 10, 1967 – Aug 21, 1967 | 12 | 100°F (Aug 12) | 99°F | 59°F |
| 3 | Jul 2, 1985 – Jul 12, 1985 | 11 | 103°F (Jul 7) | 100°F | 62°F |
| 4 | Jul 27, 1969 – Aug 5, 1969 | 10 | 103°F (Jul 27) | 98°F | 58°F |
| 5 | Jul 14, 1936 – Jul 22, 1936 | 9 | 105°F (Jul 18) | 100°F | 65°F |
| 6 | Jul 14, 1960 – Jul 22, 1960 | 9 | 103°F (Jul 19) | 99°F | 59°F |
| 7 | Jun 17, 1961 – Jun 25, 1961 | 9 | 100°F (Jun 20) | 99°F | 57°F |
| 8 | Jul 21, 1988 – Jul 28, 1988 | 8 | 105°F (Jul 22) | 99°F | 61°F |
| 9 | Jun 27, 2015 – Jul 4, 2015 | 8 | 103°F (Jun 28) | 99°F | 66°F |
| 10 | Jul 16, 1959 – Jul 23, 1959 | 8 | 102°F (Jul 17) | 100°F | 58°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 — July 2026
Average temperature · July 2026
5th-warmest month on record
5th-warmest July of 103 on record
+4.3° vs. 73.4° average (1991–2020)Longest 90°F Streak in July
7 consecutive days with highs of at least 90°F (Jul 15–21, 2026, peaking at 100°F)
The longest July streak since 2024 (2 years). The July record is 28 days, set in 2018.
Average July Temperature by Year
1916–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2021 | 79.0°F |
| 2 | 1985 | 77.9°F |
| 3 | 1936 | 77.8°F |
| 4 | 2022 | 77.7°F |
| 5 | 2026 | 77.7°F |
| 6 | 2017 | 77.7°F |
| 7 | 2007 | 77.4°F |
| 8 | 1960 | 77.1°F |
| 9 | 1933 | 77.1°F |
| 10 | 2013 | 76.9°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | July 2021 | 79.0°F |
| 2 | July 1985 | 77.9°F |
| 3 | July 1936 | 77.8°F |
| 4 | July 2022 | 77.7°F |
| 5 | July 2026 | 77.7°F |
| 6 | July 2017 | 77.7°F |
| 7 | July 2007 | 77.4°F |
| 8 | August 1967 | 77.3°F |
| 9 | July 1960 | 77.1°F |
| 10 | July 1933 | 77.1°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Jerome, ID | 77.7°F | 5th of 103 |
| Burley, ID | 75.3°F | 2nd of 107 |
| Pocatello, ID | 75.4°F | 1st of 88 |
| Stanley, ID | 62.6°F | 4th of 62 |