Seattle Tacoma, WA
Washington · Records since 1945–2026
☀️ 78°F
Currently in Seattle Tacoma
As of 4:00 PM PDT
Records for July 27
🔥 Record High
95°F
July 27, 1998
+16° from 79° normal❄ Record Low
46°F
July 27, 1956
-12° from 58° normal
🌞 Normal high: 79°F 🌑 Normal low: 58°F 1991–2020 normals
All-Time Records — Seattle Tacoma
108°F
Hottest Day Ever
Jun 28, 2021
0°F
Coldest Day Ever
Jan 31, 1950
5.02"
Wettest Day Ever
Oct 20, 2003
20.0"
Most Snow in One Day
Jan 13, 1950
Top 10 Record Highs — July 27
| # | Temp | Date |
|---|---|---|
| 🏆 | 95°F | July 27, 1998 |
| 2 | 95°F | July 27, 1958 |
| 3 | 94°F | July 27, 2020 |
| 4 | 94°F | July 27, 2009 |
| 5 | 91°F | July 27, 2022 |
| 6 | 90°F | July 27, 1996 |
| 7 | 88°F | July 27, 2018 |
| 8 | 88°F | July 27, 1968 |
| 9 | 88°F | July 27, 1962 |
| 10 | 88°F | July 27, 1960 |
Top 5 Record Lows — July 27
| # | Temp | Date |
|---|---|---|
| 🥶 | 46°F | July 27, 1956 |
| 2 | 47°F | July 27, 1951 |
| 3 | 50°F | July 27, 1959 |
| 4 | 50°F | July 27, 1957 |
| 5 | 50°F | July 27, 1952 |
Heat Wave Summary — Seattle Tacoma
threshold: 85°F (90th percentile of historical Jun–Aug highs)3.9
Avg heat wave length
days (historical)
92°
Avg peak temp
during heat waves
0
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
99 of 207 days with data were above the 1991–2020 normal high for their date.
Days ≥ 90°F Per Year
1945–20264
2026 so far
4
Avg/year 1970–2025
7
Avg/year (last 10 complete)
13
Most in a year (2022)
Average Daily High by Decade
Full year · complete decades only
Longest Heat Waves — Seattle Tacoma
| # | Dates | Days | Peak | Avg High | Avg Overnight Low |
|---|---|---|---|---|---|
| 🏆 | Aug 12, 1967 – Aug 20, 1967 | 9 | 98°F (Aug 16) | 89°F | 59°F |
| 2 | Aug 5, 1977 – Aug 13, 1977 | 9 | 96°F (Aug 12) | 90°F | 59°F |
| 3 | Jul 22, 2018 – Jul 30, 2018 | 9 | 94°F (Jul 29) | 90°F | 60°F |
| 4 | Aug 6, 1981 – Aug 12, 1981 | 7 | 99°F (Aug 9) | 92°F | 64°F |
| 5 | Jul 25, 2022 – Jul 31, 2022 | 7 | 95°F (Jul 29) | 93°F | 63°F |
| 6 | Jun 30, 2015 – Jul 6, 2015 | 7 | 93°F (Jul 2) | 90°F | 62°F |
| 7 | Jul 25, 2009 – Jul 30, 2009 | 6 | 103°F (Jul 29) | 94°F | 65°F |
| 8 | Jul 15, 1979 – Jul 20, 1979 | 6 | 98°F (Jul 16) | 91°F | 59°F |
| 9 | Jul 5, 2024 – Jul 10, 2024 | 6 | 98°F (Jul 9) | 92°F | 62°F |
| 10 | Jul 23, 1958 – Jul 28, 1958 | 6 | 97°F (Jul 28) | 90°F | 59°F |
Heat Waves Per Year
Warm Summer Nights (Jun–Aug)
Nights where the overnight low exceeded the 1991–2020 normal low
23
2026 so far
above-normal nights
27.8
Avg / summer
1970–2020
66
Most in a summer
2015
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
19.57"
2026 YTD
Normal: 20.73"
-1.16"
0.42"
July so far
July normal: 0.60"
-0.18"
1.76"
Summer so far
Summer normal: 3.02"
-1.26"
3
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")