MEDIAN FLOW RATE · 30 DAY
10cfs 49.6% vs avg
Optimal band: 8–10 cfs
PERIOD HIGH
28cfs
PERIOD LOW
5cfs
RUNNABLE
39%
last 30 day in band
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
20.4in
≈ normal
20.39 in of precipitation so far this year — about average for this point in the season (normal 21.15 in).
YTD Total
20.4in
This year so far
Normal to Date
21.1in
30-yr average
Typical Range
16.4–26.6in
10th–90th pct YTD
Departure
-4%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.93" · normal 3.14" (1.9–4.7)
Feb: 2.09" · normal 2.86" (1.7–4.6)
Mar: 3.62" · normal 3.91" (1.8–5.2)
Apr: 3.15" · normal 3.49" (1.9–5.0)
May: 5.23" · normal 3.98" (1.9–6.3)
Jun: 3.37" (so far)· normal 3.84" (1.8–6.6)
Jul: normal 4.24" (2.2–7.0)
Aug: normal 3.91" (1.8–6.2)
Sep: normal 4.86" (1.6–8.6)
Oct: normal 3.57" (1.2–5.4)
Nov: normal 3.02" (1.2–5.0)
Dec: normal 3.68" (1.9–5.8)
Baseline 1991–2020 · Source: Open-Meteo04:13 AM
Your History · HAWLINGS RIVER NEAR SANDY SPRING, MD
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Weather Conditions
WEATHER CONDITIONS
TODAY
87°
67°
TUE
92°
69°
WED
98°
71°
THU
99°
78°
FRI
102°
73°
SAT
98°
74°
SUN
96°
71°
FISH INDEX
Temperature
Warm
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:44 AM
SUNSET
08:38 PM
14H 54M OF DAYLIGHT15H 17M REMAINING
MOON PHASE
Full Moon
99% illuminated
PEAK ACTIVITY
Station Location
39.1745, -77.0214Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-29 05:21 UTC
Site #01591700·USGS
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