USGS · 01644375

LITTLE SENECA CREEK

USGS · 01644375LIVE

LITTLE SENECA CREEK TRIBUTARY NEAR GERMANTOWN, MD

MONTGOMERY COUNTY, MD39.1994°N, -77.2754°W Updated 1 d ago

FLOW RATE

0cfs

AIR TEMP

89°F

WIND

5mph SW

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

0cfs 24.6% vs avg

Optimal band: 1–1 cfs

PERIOD HIGH

4cfs

PERIOD LOW

1cfs

RUNNABLE

83%

last 30 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.2in

≈ normal

20.24 in of precipitation so far this year — about average for this point in the season (normal 21.28 in).

YTD Total

20.2in

This year so far

Normal to Date

21.3in

30-yr average

Typical Range

16.3–26.6in

10th–90th pct YTD

Departure

-5%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.79" · normal 3.12" (1.8–4.8)

Jan

Feb: 2.41" · normal 2.81" (1.7–4.6)

Feb

Mar: 3.74" · normal 3.84" (1.7–5.2)

Mar

Apr: 3.13" · normal 3.62" (1.9–5.3)

Apr

May: 4.85" · normal 3.87" (1.9–6.3)

May

Jun: 3.29" · normal 3.70" (1.7–6.3)

Jun

Jul: 0.03" (so far)· normal 4.09" (2.0–7.6)

Jul

Aug: normal 3.55" (2.0–4.9)

Aug

Sep: normal 4.83" (1.5–8.9)

Sep

Oct: normal 3.51" (1.1–5.3)

Oct

Nov: normal 2.99" (1.4–4.7)

Nov

Dec: normal 3.56" (1.8–5.6)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:13 AM

Your History · LITTLE SENECA CREEK TRIBUTARY NEAR GERMANTOWN, MD

Track your history

Sign in to track your sessions at LITTLE SENECA CREEK TRIBUTARY NEAR GERMANTOWN, MD — best days, monthly trends, and time on the water.

Station Location

39.1994, -77.2754

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-03 01:17 UTC

Site #01644375·USGS

Create a free account to save favorites, set flow alerts, and track conditions