MEDIAN FLOW RATE · 1 YEAR
352cfs
Optimal band: 1,126–1,524 cfs
PERIOD HIGH
1,821cfs
PERIOD LOW
352cfs
RUNNABLE
84%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
15.4in
≈ normal
15.44 in of precipitation so far this year — about average for this point in the season (normal 13.92 in).
YTD Total
15.4in
This year so far
Normal to Date
13.9in
30-yr average
Typical Range
6.5–22.4in
10th–90th pct YTD
Departure
+11%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 3.38" · normal 4.23" (0.3–8.8)
Feb: 4.85" · normal 4.00" (0.4–7.7)
Mar: 1.39" · normal 3.18" (0.4–6.7)
Apr: 4.93" · normal 1.50" (0.4–2.5)
May: 0.76" · normal 0.83" (0.0–1.5)
Jun: 0.14" · normal 0.17" (0.0–0.3)
Jul: 0.00" (so far)· normal 0.01" (0.0–0.0)
Aug: normal 0.06" (0.0–0.0)
Sep: normal 0.09" (0.0–0.3)
Oct: normal 1.10" (0.0–3.1)
Nov: normal 2.06" (0.6–4.1)
Dec: normal 3.98" (0.4–7.4)
Baseline 1991–2020 · Source: Open-Meteo11:14 AM
Your History · S MOKELUMNE R A NEW HOPE BR NR WALNUT GROVE CA
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Station Location
38.2256, -121.4911Loading map…
DATA · USGS · NOAA · NWSUPDATED 2025-10-01 00:00 UTC
Site #11336680·USGS
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