USGS · 12479400

TILLMAN CR RIVER

USGS · 12479400LIVE

TILLMAN CR AT IRON HORSE TRAIL NR S CLE ELUM, WA

KITTITAS COUNTY, WA47.1807°N, -120.9692°W

AIR TEMP

60°F

WIND

8mph WNW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

17.9in

≈ normal

17.9 in of precipitation so far this year — about average for this point in the season (normal 20.68 in).

YTD Total

17.9in

This year so far

Normal to Date

20.7in

30-yr average

Typical Range

16.2–25.6in

10th–90th pct YTD

Departure

-13%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.08" · normal 5.83" (3.5–7.8)

Jan

Feb: 2.91" · normal 4.27" (1.8–7.4)

Feb

Mar: 8.39" · normal 4.02" (2.3–6.7)

Mar

Apr: 1.59" · normal 2.65" (1.2–3.9)

Apr

May: 1.08" · normal 2.16" (1.1–3.4)

May

Jun: 0.86" · normal 1.57" (0.4–2.5)

Jun

Jul: 0.00" (so far)· normal 0.64" (0.1–1.3)

Jul

Aug: normal 0.66" (0.1–1.4)

Aug

Sep: normal 1.38" (0.2–2.5)

Sep

Oct: normal 3.45" (1.4–5.8)

Oct

Nov: normal 5.48" (2.5–7.9)

Nov

Dec: normal 6.22" (3.5–8.9)

Dec

Baseline 1991–2020 · Source: Open-Meteo08:58 AM

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Station Location

47.1807, -120.9692

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