Tri-Cities, WA
Washington · Records since 1894–2026
☀️ 93°F
Feels like 89°
Currently in Tri-Cities
As of 5:00 PM PDT
Records for July 28
🔥 Record High
110°F
July 28, 2022
+16° from 94° normal❄ Record Low
46°F
July 28, 1926
-12° from 58° normal
🌞 Normal high: 94°F 🌑 Normal low: 58°F 1991–2020 normals
All-Time Records — Tri-Cities
115°F
Hottest Day Ever
Jun 27, 2021
-29°F
Coldest Day Ever
Dec 13, 1919
2.00"
Wettest Day Ever
Nov 20, 1921
14.0"
Most Snow in One Day
Nov 20, 1921
Top 10 Record Highs — July 28
| # | Temp | Date |
|---|---|---|
| 🏆 | 110°F | July 28, 2022 |
| 2 | 109°F | July 28, 1934 |
| 3 | 108°F | July 28, 1998 |
| 4 | 106°F | July 28, 2020 |
| 5 | 106°F | July 28, 2003 |
| 6 | 106°F | July 28, 1958 |
| 7 | 106°F | July 28, 1939 |
| 8 | 105°F | July 28, 1982 |
| 9 | 104°F | July 28, 2005 |
| 10 | 104°F | July 28, 1971 |
Top 5 Record Lows — July 28
| # | Temp | Date |
|---|---|---|
| 🥶 | 46°F | July 28, 1926 |
| 2 | 46°F | July 28, 1917 |
| 3 | 48°F | July 28, 2015 |
| 4 | 48°F | July 28, 1954 |
| 5 | 48°F | July 28, 1929 |
Heat Wave Summary — Tri-Cities
threshold: 99°F (90th percentile of historical Jun–Aug highs)4.7
Avg heat wave length
days (historical)
105°
Avg peak temp
during heat waves
1
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
120 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1894–202633
2026 so far
49
Avg/year 1970–2025
62
Avg/year (last 10 complete)
77
Most in a year (1940)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Tri-Cities
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Jul 5, 2024 – Jul 21, 2024 | 17 | 109°F (Jul 9) | 103°F | 60°F |
| 2 | Jul 24, 2022 – Aug 3, 2022 | 11 | 112°F (Jul 29) | 105°F | 62°F |
| 3 | Aug 11, 1977 – Aug 21, 1977 | 11 | 110°F (Aug 17) | 104°F | 66°F |
| 4 | Jul 13, 1938 – Jul 23, 1938 | 11 | 109°F (Jul 21) | 104°F | 65°F |
| 5 | Jul 11, 1906 – Jul 21, 1906 | 11 | 108°F (Jul 12) | 103°F | 72°F |
| 6 | Aug 10, 1967 – Aug 20, 1967 | 11 | 105°F (Aug 17) | 102°F | 61°F |
| 7 | Aug 7, 1981 – Aug 16, 1981 | 10 | 105°F (Aug 9) | 102°F | 64°F |
| 8 | Jul 22, 1939 – Jul 30, 1939 | 9 | 115°F (Jul 27) | 105°F | 65°F |
| 9 | Jun 23, 2021 – Jul 1, 2021 | 9 | 115°F (Jun 27) | 107°F | 68°F |
| 10 | Jul 12, 1911 – Jul 20, 1911 | 9 | 114°F (Jul 16) | 107°F | 68°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
28
2026 so far
above-normal nights
51.4
Avg / summer
1970–2020
81
Most in a summer
1997
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
3.51"
2026 YTD
Normal: 4.47"
-0.96"
0.04"
July so far
July normal: 0.15"
-0.11"
0.16"
Summer so far
Summer normal: 1.03"
-0.87"
0
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")