MEDIAN FLOW RATE · 1 DAY
—cfs
No flow data available
Precipitation History
Precipitation · YTD
NormalNear-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)
Feb: 1.78" · normal 2.80" (1.5–5.2)
Mar: 3.94" · normal 3.86" (1.7–5.5)
Apr: 3.34" · normal 3.53" (2.1–5.6)
May: 3.93" · normal 3.49" (1.5–5.2)
Jun: 3.08" · normal 3.56" (1.7–5.9)
Jul: 1.75" (so far)· normal 3.79" (2.1–7.0)
Aug: normal 3.25" (1.6–4.6)
Sep: normal 4.34" (1.5–9.3)
Oct: normal 3.49" (1.5–5.6)
Nov: normal 2.95" (1.4–4.4)
Dec: normal 3.53" (1.6–5.3)
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, -76.7514Loading map…
DATA · USGS · NOAA · NWS
Site #01575504·USGS
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