MEDIAN FLOW RATE · 1 YEAR
379cfs 38.8% vs avg
Optimal band: 14–18 cfs
PERIOD HIGH
2,867cfs
PERIOD LOW
7cfs
RUNNABLE
42%
last 1 year in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
17.4in
≈ normal
17.37 in of precipitation so far this year — about average for this point in the season (normal 17.19 in).
YTD Total
17.4in
This year so far
Normal to Date
17.2in
30-yr average
Typical Range
12.9–21.2in
10th–90th pct YTD
Departure
+1%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.66" · normal 0.92" (0.3–1.6)
Feb: 0.41" · normal 1.39" (0.3–2.3)
Mar: 1.04" · normal 2.25" (0.6–3.7)
Apr: 4.31" · normal 3.45" (1.8–4.7)
May: 3.73" · normal 5.25" (1.9–8.9)
Jun: 6.22" (so far)· normal 4.41" (1.9–6.8)
Jul: normal 3.70" (1.3–5.9)
Aug: normal 3.28" (1.4–4.8)
Sep: normal 3.07" (1.2–5.4)
Oct: normal 2.49" (0.8–4.4)
Nov: normal 1.67" (0.4–3.6)
Dec: normal 1.40" (0.3–2.6)
Baseline 1991–2020 · Source: Open-Meteo12:11 AM
Your History · CHAPMAN C NR CHAPMAN, KS
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Weather Conditions
WEATHER CONDITIONS
TODAY
73°
68°
FRI
78°
68°
SAT
90°
66°
SUN
98°
80°
MON
98°
81°
TUE
100°
80°
WED
99°
76°
FISH INDEX
Temperature
Warm
Wind
Moderate
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
06:03 AM
SUNSET
08:58 PM
14H 55M OF DAYLIGHT17H 53M REMAINING
MOON PHASE
Waxing Gibbous
84% illuminated
Station Location
39.0311, -97.0403Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-26 03:05 UTC
Site #06878000·USGS
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