USGS · 01638420

N F CATOCTIN CREEK

USGS · 01638420LIVE

N F CATOCTIN CREEK AT RT 681 NEAR WATERFORD, VA

LOUDOUN COUNTY, VA39.2050°N, -77.6239°W Updated 47 min ago

FLOW RATE

1.93cfs

GAUGE HT

1.73ft

AIR TEMP

94°F

WIND

5mph W

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

1.93cfs 85.1% vs avg

Optimal band: 1–2 cfs

PERIOD HIGH

2.13cfs

PERIOD LOW

1.24cfs

RUNNABLE

87%

last 1 day in band

Gauge Height

1.73ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.8in

≈ normal

20.76 in of precipitation so far this year — about average for this point in the season (normal 20.58 in).

YTD Total

20.8in

This year so far

Normal to Date

20.6in

30-yr average

Typical Range

15.8–26.1in

10th–90th pct YTD

Departure

+1%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.60" · normal 3.06" (1.6–4.7)

Jan

Feb: 2.26" · normal 2.73" (1.5–4.7)

Feb

Mar: 4.39" · normal 3.75" (1.7–5.0)

Mar

Apr: 2.74" · normal 3.49" (1.8–5.0)

Apr

May: 5.22" · normal 3.84" (1.9–6.4)

May

Jun: 3.50" · normal 3.42" (1.8–5.7)

Jun

Jul: 0.04" (so far)· normal 3.82" (1.8–6.0)

Jul

Aug: normal 3.23" (1.9–4.5)

Aug

Sep: normal 4.39" (1.4–8.2)

Sep

Oct: normal 3.42" (1.1–5.4)

Oct

Nov: normal 2.96" (1.4–4.7)

Nov

Dec: normal 3.45" (1.7–5.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:39 PM

Your History · N F CATOCTIN CREEK AT RT 681 NEAR WATERFORD, VA

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Station Location

39.2050, -77.6239

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 15:02 UTC

Site #01638420·USGS

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