Hilo, HI
Hawaii · Records since 1949–2026
🌤️ 81°F
Feels like 88°
Currently in Hilo
As of 2:00 PM HST
🔥 6° below today's record of 87°F
Records for July 28
🔥 Record High
87°F
July 28, 2016
+4° from 83° normal❄ Record Low
63°F
July 28, 1999
-7° from 70° normal
🌞 Normal high: 83°F 🌑 Normal low: 70°F 1991–2020 normals
All-Time Records — Hilo
94°F
Hottest Day Ever
Nov 28, 2013
53°F
Coldest Day Ever
Feb 21, 1962
16.87"
Wettest Day Ever
Feb 20, 1979
0.0"
Most Snow in One Day
Nov 30, 2020
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 87°F | July 28, 2016 |
| 2 | 87°F | July 28, 2015 |
| 3 | 87°F | July 28, 2007 |
| 4 | 87°F | July 28, 2005 |
| 5 | 87°F | July 28, 1997 |
| 6 | 87°F | July 28, 1996 |
| 7 | 87°F | July 28, 1986 |
| 8 | 86°F | July 28, 2025 |
| 9 | 86°F | July 28, 2014 |
| 10 | 86°F | July 28, 1992 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 63°F | July 28, 1999 |
| 2 | 64°F | July 28, 1955 |
| 3 | 65°F | July 28, 2007 |
| 4 | 65°F | July 28, 1952 |
| 5 | 67°F | July 28, 2022 |
Heat Wave Summary — Hilo
threshold: 86°F (90th percentile of historical Jun–Aug highs)5.6
Avg heat wave length
days (historical)
88°
Avg peak temp
during heat waves
59
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far
2026 Daily High Temperature vs Normal
Year to date
Above normal
Below normal
109 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1950–20260
2026 so far
2
Avg/year 1970–2025
4
Avg/year (last 10 complete)
12
Most in a year (2015)
Average 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
36
2026 so far
above-normal nights
30.0
Avg / summer
1970–2020
74
Most in a summer
2018
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
86.43"
2026 YTD
Normal: 62.05"
+24.38"
10.32"
July so far
July normal: 9.24"
+1.08"
21.71"
Summer so far
Summer normal: 27.84"
-6.13"
24
2026 heavy rain days
Days with ≥ 1.0"
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")