MEDIAN FLOW RATE · 30 DAY
—cfs
No flow data available
Precipitation History
Precipitation · YTD
NormalNear-normal year
2026 to date
29.4in
≈ normal
29.38 in of precipitation so far this year — about average for this point in the season (normal 26.98 in).
YTD Total
29.4in
This year so far
Normal to Date
27.0in
30-yr average
Typical Range
21.6–34.0in
10th–90th pct YTD
Departure
+9%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 2.85" · normal 3.59" (2.0–5.1)
Feb: 1.21" · normal 3.17" (1.7–5.0)
Mar: 6.05" · normal 4.23" (2.2–6.4)
Apr: 7.01" · normal 4.62" (2.8–6.4)
May: 5.15" · normal 4.86" (2.1–7.6)
Jun: 4.58" · normal 5.08" (2.4–7.8)
Jul: 2.53" (so far)· normal 4.47" (3.1–6.6)
Aug: normal 3.81" (2.3–5.9)
Sep: normal 3.95" (1.4–7.3)
Oct: normal 3.60" (1.9–5.5)
Nov: normal 3.49" (1.6–5.0)
Dec: normal 3.53" (2.0–5.1)
Baseline 1991–2020 · Source: Open-Meteo23:57 UTC
Your History · Allegheny R at Lock & Dam 2 at Aspinwall, PA
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Station Location
40.4875, -79.9150Loading map…
DATA · USGS · NOAA · NWS
Site #03049680·USGS
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