USGS · 01644371

LITTLE SENECA CREEK

USGS · 01644371LIVE

LITTLE SENECA CREEK TRIBUTARY NEAR CLARKSBURG, MD

MONTGOMERY COUNTY, MD39.2315°N, -77.2557°W Updated 1 hr ago

FLOW RATE

0cfs

AIR TEMP

88°F

WIND

6mph SW

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

0cfs 94.0% vs avg

Optimal band: 1–1 cfs

PERIOD HIGH

2cfs

PERIOD LOW

1cfs

RUNNABLE

80%

last 1 year in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.9in

≈ normal

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

YTD Total

20.9in

This year so far

Normal to Date

21.3in

30-yr average

Typical Range

16.3–26.7in

10th–90th pct YTD

Departure

-2%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.87" · normal 3.12" (1.8–4.8)

Jan

Feb: 2.32" · normal 2.80" (1.7–4.6)

Feb

Mar: 3.63" · normal 3.83" (1.7–5.2)

Mar

Apr: 3.02" · normal 3.59" (1.9–5.2)

Apr

May: 5.27" · normal 3.91" (1.9–6.3)

May

Jun: 3.82" · normal 3.71" (1.7–6.3)

Jun

Jul: 0.02" (so far)· normal 4.13" (2.0–6.9)

Jul

Aug: normal 3.56" (2.0–4.9)

Aug

Sep: normal 4.79" (1.5–8.5)

Sep

Oct: normal 3.50" (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-Meteo12:01 AM

Your History · LITTLE SENECA CREEK TRIBUTARY NEAR CLARKSBURG, MD

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Station Location

39.2315, -77.2557

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 01:22 UTC

Site #01644371·USGS

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