MEDIAN FLOW RATE · 1 YEAR
212cfs 5.4% vs avg
Optimal band: 28–38 cfs
PERIOD HIGH
2,128cfs
PERIOD LOW
10cfs
RUNNABLE
16%
last 1 year in band
Precipitation History
Precipitation · YTD
WetWetter than normal
2026 to date
24.5in
+20% vs normal
24.51 in of precipitation so far this year, 20% above the 30-year normal of 20.48 in for this point in the season.
YTD Total
24.5in
This year so far
Normal to Date
20.5in
30-yr average
Typical Range
15.0–26.8in
10th–90th pct YTD
Departure
+20%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 1.01" · normal 1.55" (0.8–2.5)
Feb: 0.26" · normal 1.84" (0.8–3.5)
Mar: 2.48" · normal 2.74" (1.3–4.8)
Apr: 9.81" · normal 4.25" (2.5–5.9)
May: 1.83" · normal 4.77" (2.5–7.3)
Jun: 8.28" · normal 4.86" (1.8–7.8)
Jul: 0.84" (so far)· normal 3.50" (1.4–6.6)
Aug: normal 3.62" (1.1–6.4)
Sep: normal 3.73" (1.9–6.5)
Oct: normal 2.80" (1.1–4.8)
Nov: normal 2.31" (0.9–3.9)
Dec: normal 1.94" (1.0–3.1)
Baseline 1991–2020 · Source: Open-Meteo07:00 AM
Your History · Old Mans Creek near Iowa City, IA
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Weather Conditions
WEATHER CONDITIONS
TODAY
85°
68°
SUN
84°
70°
MON
81°
65°
TUE
82°
64°
WED
82°
65°
THU
77°
67°
FRI
79°
62°
FISH INDEX
Temperature
Warm
Wind
Light
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
05:37 AM
SUNSET
08:44 PM
15H 7M OF DAYLIGHT12H 11M REMAINING
MOON PHASE
Waning Gibbous
80% illuminated
Station Location
41.6064, -91.6157Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-04 08:33 UTC
Site #05455100·USGS
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