| Data are tidally affected--Astronomical tides cause significant cycles of approximately 24.84 hours at this site. Because a different portion of the 24.84-hour tidal cycle is averaged in successive daily (24-hour) computations, a systematic secondary oscillation, unrelated to basin hydrology and having a period of about two weeks may be apparent in daily data published from December 1967 to September 2015. |
| Min (1991) | 25th percen- tile | Median | Most Recent Instantaneous Value Dec 1 | Mean | 75th percen- tile | Max (2004) |
|---|---|---|---|---|---|---|
| -143 | 402 | 615 | 631 | 672 | 824 | 1940 |