MEDIAN FLOW RATE · 30 DAY
37cfs 37.6% vs avg
Optimal band: 32–44 cfs
PERIOD HIGH
661cfs
PERIOD LOW
29cfs
RUNNABLE
61%
last 30 day in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
18.0in
-16% vs normal
17.96 in of precipitation so far this year, 16% below the 30-year normal of 21.37 in for this point in the season.
YTD Total
18.0in
This year so far
Normal to Date
21.4in
30-yr average
Typical Range
17.4–26.5in
10th–90th pct YTD
Departure
-16%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.86" · normal 3.27" (2.1–4.8)
Feb: 2.21" · normal 2.98" (1.5–4.7)
Mar: 3.46" · normal 4.16" (2.1–6.6)
Apr: 2.29" · normal 3.65" (2.1–5.7)
May: 4.19" · normal 3.55" (1.9–5.9)
Jun: 2.96" (so far)· normal 4.03" (2.1–7.4)
Jul: normal 3.95" (2.2–6.2)
Aug: normal 4.12" (1.6–6.6)
Sep: normal 4.31" (1.8–6.3)
Oct: normal 3.76" (1.8–6.0)
Nov: normal 3.02" (1.5–4.8)
Dec: normal 4.02" (1.9–5.7)
Baseline 1991–2020 · Source: Open-Meteo02:09 AM
Your History · Chester Creek near Chester, PA
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Weather Conditions
WEATHER CONDITIONS
TODAY
84°
70°
SAT
79°
70°
SUN
75°
68°
MON
90°
69°
TUE
92°
68°
WED
100°
69°
THU
103°
78°
FISH INDEX
Temperature
Warm
Wind
Calm
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:35 AM
SUNSET
08:34 PM
14H 59M OF DAYLIGHT17H 13M REMAINING
MOON PHASE
Waxing Gibbous
91% illuminated
Station Location
39.8690, -75.4082Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-27 03:21 UTC
Site #01477000·USGS
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