Rainfall totals Seattle, WA
For Seattle, the official rainfall for the year to date is 19.57 inches through Aug 21, 2026, according to the National Weather Service daily climate report. The normal for that date is 21.40 inches.
Data from Seattle Tacoma Airport, with records back to 1948.
Official rainfall report for Aug 21, 2026
| Measured | Normal | |
|---|---|---|
| Rain on Aug 21, 2026 | 0.00 inches | 0.03 inches |
| Month to date | 0.00 inches | 0.58 inches |
| Year to date | 19.57 inches | 21.40 inches |
| Record for Aug 21 | 0.70 inches | 1989 |
Source: National Weather Service daily climate report for SEATTLE-TACOMA INTL, issued the morning after Aug 21, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Jul 26, 2026 | 0.01 inches |
| Jul 22, 2026 | 0.05 inches |
| Jul 16, 2026 | 0.36 inches |
| Jun 26, 2026 | 0.09 inches |
| Jun 25, 2026 | 0.01 inches |
| Jun 9, 2026 | 0.53 inches |
| Jun 8, 2026 | 0.66 inches |
| Jun 6, 2026 | 0.05 inches |
| May 29, 2026 | 0.38 inches |
| May 26, 2026 | 0.10 inches |
| May 25, 2026 | 0.17 inches |
| May 16, 2026 | 0.08 inches |
| May 15, 2026 | 0.26 inches |
| May 14, 2026 | 0.01 inches |
| May 13, 2026 | 0.13 inches |
| May 12, 2026 | 0.01 inches |
| Apr 28, 2026 | 0.04 inches |
| Apr 22, 2026 | 0.46 inches |
| Apr 21, 2026 | 0.05 inches |
| Apr 15, 2026 | 0.36 inches |
| Apr 14, 2026 | 1.06 inches |
| Apr 12, 2026 | 0.03 inches |
| Apr 11, 2026 | 0.08 inches |
| Apr 1, 2026 | 0.69 inches |
| Mar 29, 2026 | 0.24 inches |
| Mar 25, 2026 | 0.03 inches |
| Mar 24, 2026 | 0.99 inches |
| Mar 20, 2026 | 0.30 inches |
| Mar 19, 2026 | 0.49 inches |
| Mar 18, 2026 | 0.23 inches |
Through Aug 19, 2026, the GHCN-Daily station record shows 19.57 inches of measurable rain so far this year, falling over a 71-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
All-time rainfall records
| Wettest day | 5.02 inches | Oct 20, 2003 |
|---|---|---|
| Wettest year | 55.14 inches | 1950 |
| Driest year | 23.78 inches | 1952 |
| Average year | 38.63 inches | 78 complete years on record |
| Rain days a year | 156 | average, 0.01 inch or more |
| Record begins | 1948 | 28,712 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 5.78 | 3.76 | 4.17 | 3.18 | 1.88 | 1.45 | 0.60 | 0.97 | 1.61 | 3.91 | 6.31 | 5.72 | 39.34 |
Averages are 1991-2020 normals from NCEI.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.