Hilo, HI
Hawaii · Records since 1949–2026
Records for August 11
🔥 Record High
August 11, 2025
+5° from 83° normal❄ Record Low
August 11, 1980
-5° from 70° normalAll-Time Records — Hilo
Top 10 Record Highs — August 11
| # | Temp | Date |
|---|---|---|
| 🏆 | 88°F | August 11, 2025 |
| 2 | 88°F | August 11, 2015 |
| 3 | 88°F | August 11, 1996 |
| 4 | 88°F | August 11, 1960 |
| 5 | 87°F | August 11, 1998 |
| 6 | 87°F | August 11, 1971 |
| 7 | 86°F | August 11, 2019 |
| 8 | 86°F | August 11, 2018 |
| 9 | 86°F | August 11, 2016 |
| 10 | 86°F | August 11, 2014 |
Top 5 Record Lows — August 11
| # | Temp | Date |
|---|---|---|
| 🥶 | 65°F | August 11, 1980 |
| 2 | 65°F | August 11, 1962 |
| 3 | 66°F | August 11, 2010 |
| 4 | 67°F | August 11, 2006 |
| 5 | 67°F | August 11, 1999 |
Heat Wave Summary — Hilo
threshold: 86°F (90th percentile of historical Jun–Aug highs)2026 Daily High Temperature vs Normal
Year to date121 of 221 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1950–2026Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Hilo
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Sep 11, 2014 – Oct 7, 2014 | 27 | 93°F (Sep 26) | 88°F | 71°F |
| 2 | Aug 8, 2019 – Sep 3, 2019 | 27 | 89°F (Aug 16) | 88°F | 73°F |
| 3 | Sep 19, 2019 – Oct 9, 2019 | 21 | 92°F (Sep 27) | 88°F | 74°F |
| 4 | Jun 27, 2015 – Jul 16, 2015 | 20 | 90°F (Jul 12) | 87°F | 72°F |
| 5 | Aug 25, 2015 – Sep 12, 2015 | 19 | 93°F (Sep 2) | 90°F | 73°F |
| 6 | Oct 28, 2019 – Nov 15, 2019 | 19 | 90°F (Nov 2) | 87°F | 71°F |
| 7 | Sep 30, 2020 – Oct 17, 2020 | 18 | 90°F (Oct 12) | 88°F | 70°F |
| 8 | Aug 30, 2004 – Sep 15, 2004 | 17 | 89°F (Sep 7) | 87°F | 70°F |
| 9 | Sep 3, 2013 – Sep 18, 2013 | 16 | 88°F (Sep 7) | 87°F | 69°F |
| 10 | Sep 28, 1996 – Oct 10, 1996 | 13 | 90°F (Oct 1) | 88°F | 68°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
76th-warmest month on record
19th-warmest July of 77 on record
+0.4° vs. 76.7° average (1991–2020)Average July Temperature by Year
1950–2026 · 2026 highlighted
Warmest Julys on Record
| # | Year | Avg Temp |
|---|---|---|
| 1 | 2015 | 79.4°F |
| 2 | 2020 | 78.9°F |
| 3 | 2018 | 78.5°F |
| 4 | 2016 | 78.5°F |
| 5 | 1994 | 78.1°F |
| 6 | 1995 | 77.9°F |
| 7 | 2019 | 77.9°F |
| 8 | 1986 | 77.8°F |
| 9 | 1980 | 77.8°F |
| 10 | 1967 | 77.7°F |
Warmest Months on Record (Any Month)
| # | Month | Avg Temp |
|---|---|---|
| 1 | September 2019 | 80.7°F |
| 2 | August 2019 | 80.1°F |
| 3 | September 2015 | 80.0°F |
| 4 | August 2015 | 79.7°F |
| 5 | October 2019 | 79.7°F |
| 6 | September 2014 | 79.4°F |
| 7 | July 2015 | 79.4°F |
| 8 | September 2020 | 79.0°F |
| 9 | September 2018 | 79.0°F |
| 10 | October 2020 | 78.9°F |
Nearby Stations — July 2026
How the same month ranked at the closest reporting stations
| Station | Avg Temp | July Rank |
|---|---|---|
| Hilo, HI | 77.2°F | 19th of 77 |
| Kahului, HI | 79.6°F | 24th of 72 |
| Honolulu, HI | 82.0°F | 14th of 79 |
| Lihue, HI | 79.2°F | 31st of 77 |