MEDIAN FLOW RATE · 30 DAY
0cfs 100.0% vs avg
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
16.4in
+28% vs normal
16.45 in of precipitation so far this year, 28% above the 30-year normal of 12.86 in for this point in the season.
YTD Total
16.4in
This year so far
Normal to Date
12.9in
30-yr average
Typical Range
5.4–20.8in
10th–90th pct YTD
Departure
+28%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 3.50" · normal 3.68" (0.7–7.7)
Feb: 4.86" · normal 3.92" (0.4–7.5)
Mar: 0.52" · normal 2.94" (0.4–6.2)
Apr: 6.54" · normal 1.40" (0.3–2.6)
May: 0.98" · normal 0.77" (0.0–1.4)
Jun: 0.05" · normal 0.14" (0.0–0.3)
Jul: 0.00" (so far)· normal 0.03" (0.0–0.0)
Aug: normal 0.06" (0.0–0.1)
Sep: normal 0.08" (0.0–0.2)
Oct: normal 0.83" (0.0–2.5)
Nov: normal 1.79" (0.6–3.1)
Dec: normal 3.28" (0.4–6.4)
Baseline 1991–2020 · Source: Open-Meteo04:22 PM
Your History · SAN RAMON C A SAN RAMON CA
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Station Location
37.7729, -121.9946Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-07 00:00 UTC
Site #11182500·USGS
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