MEDIAN FLOW RATE · 30 DAY
142cfs 62.9% vs avg
Optimal band: 71–95 cfs
PERIOD HIGH
4,145cfs
PERIOD LOW
51cfs
RUNNABLE
35%
last 30 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
6.8in
-39% vs normal
6.8 in of precipitation so far this year, 39% below the 30-year normal of 11.16 in for this point in the season.
YTD Total
6.8in
This year so far
Normal to Date
11.2in
30-yr average
Typical Range
7.3–14.8in
10th–90th pct YTD
Departure
-39%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.64" · normal 0.50" (0.2–0.9)
Feb: 0.17" · normal 0.71" (0.2–1.1)
Mar: 0.84" · normal 1.36" (0.5–2.4)
Apr: 1.81" · normal 2.54" (1.3–3.6)
May: 1.90" · normal 3.39" (1.2–6.1)
Jun: 1.44" (so far)· normal 2.84" (0.9–5.0)
Jul: normal 2.01" (0.6–3.9)
Aug: normal 1.57" (0.4–3.0)
Sep: normal 1.34" (0.4–2.4)
Oct: normal 1.71" (0.6–3.3)
Nov: normal 0.68" (0.1–1.3)
Dec: normal 0.62" (0.1–1.4)
Baseline 1991–2020 · Source: Open-Meteo01:28 AM
Your History · Cheyenne R nr Wasta, SD
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Weather Conditions
WEATHER CONDITIONS
TODAY
67°
55°
FRI
89°
57°
SAT
99°
68°
SUN
101°
65°
MON
97°
73°
TUE
100°
62°
WED
103°
69°
FISH INDEX
Temperature
Ideal
Wind
Light
Pressure
Falling — Active
Moon Phase
Average
DAYLIGHT
SUNRISE
05:07 AM
SUNSET
08:36 PM
15H 29M OF DAYLIGHT17H 41M REMAINING
MOON PHASE
Waxing Gibbous
84% illuminated
Station Location
44.0810, -102.4013Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-26 02:55 UTC
Site #06423500·USGS
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