MEDIAN FLOW RATE · 30 DAY
37cfs 93.5% vs avg
Optimal band: 94–126 cfs
PERIOD HIGH
590cfs
PERIOD LOW
34cfs
RUNNABLE
10%
last 30 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
3.2in
-62% vs normal
3.2 in of precipitation so far this year, 62% below the 30-year normal of 8.34 in for this point in the season.
YTD Total
3.2in
This year so far
Normal to Date
8.3in
30-yr average
Typical Range
4.8–11.9in
10th–90th pct YTD
Departure
-62%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.23" · normal 0.46" (0.2–0.7)
Feb: 0.26" · normal 0.63" (0.3–1.1)
Mar: 0.30" · normal 1.05" (0.4–2.0)
Apr: 0.81" · normal 1.88" (0.8–3.0)
May: 1.24" · normal 2.62" (0.7–4.4)
Jun: 0.21" · normal 1.45" (0.3–3.1)
Jul: 0.15" (so far)· normal 0.72" (0.1–1.4)
Aug: normal 0.58" (0.2–1.2)
Sep: normal 1.04" (0.1–2.0)
Oct: normal 1.31" (0.4–2.3)
Nov: normal 0.71" (0.2–1.3)
Dec: normal 0.55" (0.2–1.1)
Baseline 1991–2020 · Source: Open-Meteo05:26 PM
Your History · Wind River at Riverton, WY
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Station Location
43.0105, -108.3768Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-09 00:00 UTC
Site #06228000·USGS
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