MEDIAN FLOW RATE · 30 DAY
—cfs
No flow data available
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
17.1in
≈ normal
17.15 in of precipitation so far this year — about average for this point in the season (normal 18.51 in).
YTD Total
17.1in
This year so far
Normal to Date
18.5in
30-yr average
Typical Range
14.2–23.3in
10th–90th pct YTD
Departure
-7%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 5.17" · normal 5.64" (3.9–7.7)
Feb: 3.21" · normal 3.42" (1.5–4.8)
Mar: 5.26" · normal 3.70" (2.2–5.9)
Apr: 1.42" · normal 2.39" (1.1–3.7)
May: 0.84" · normal 1.79" (0.6–3.0)
Jun: 0.90" · normal 1.32" (0.5–2.2)
Jul: 0.34" (so far)· normal 0.72" (0.1–1.4)
Aug: normal 1.08" (0.1–2.6)
Sep: normal 1.79" (0.4–3.4)
Oct: normal 4.14" (1.8–6.5)
Nov: normal 6.23" (3.6–9.6)
Dec: normal 5.56" (3.4–7.8)
Baseline 1991–2020 · Source: Open-Meteo09:52 PM
Your History · UNNAMED TRIB TO ZYISTRA LK NR SAN JUAN ISLAND, WA
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Station Location
48.5261, -123.0989Loading map…
DATA · USGS · NOAA · NWS
Site #12200752·USGS
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