USGS · 01575504

WILLIS RUN

USGS · 01575504LIVE

Willis Run at Roosevelt Ave nr North York, PA

WEST MANCHESTER TOWNSHIP, PA39.9700°N, -76.7514°W

AIR TEMP

83°F

WIND

4mph W

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.3in

≈ normal

20.3 in of precipitation so far this year — about average for this point in the season (normal 21.59 in).

YTD Total

20.3in

This year so far

Normal to Date

21.6in

30-yr average

Typical Range

17.5–28.3in

10th–90th pct YTD

Departure

-6%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.48" · normal 3.14" (1.9–5.0)

Jan

Feb: 1.78" · normal 2.80" (1.5–5.2)

Feb

Mar: 3.94" · normal 3.86" (1.7–5.5)

Mar

Apr: 3.34" · normal 3.53" (2.1–5.6)

Apr

May: 3.93" · normal 3.49" (1.5–5.2)

May

Jun: 3.08" · normal 3.56" (1.7–5.9)

Jun

Jul: 1.75" (so far)· normal 3.79" (2.1–7.0)

Jul

Aug: normal 3.25" (1.6–4.6)

Aug

Sep: normal 4.34" (1.5–9.3)

Sep

Oct: normal 3.49" (1.5–5.6)

Oct

Nov: normal 2.95" (1.4–4.4)

Nov

Dec: normal 3.53" (1.6–5.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo03:49 PM

Your History · Willis Run at Roosevelt Ave nr North York, PA

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Station Location

39.9700, -76.7514

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