CO DWR · ARKGRNCO

ARKANSAS RIVER

CO DWR · ARKGRNCOLIVE

Arkansas River At Granite, Co.

CHAFFEE COUNTY, CO39.0430°N, -106.2657°W Updated 1 d ago

FLOW RATE

83.2cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

83.2cfs

Optimal band: 71–96 cfs

PERIOD HIGH

83.2cfs

PERIOD LOW

83.2cfs

RUNNABLE

100%

last 1 day in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

7.4in

-30% vs normal

7.44 in of precipitation so far this year, 30% below the 30-year normal of 10.65 in for this point in the season.

YTD Total

7.4in

This year so far

Normal to Date

10.7in

30-yr average

Typical Range

8.2–13.3in

10th–90th pct YTD

Departure

-30%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.66" · normal 1.20" (0.5–2.2)

Jan

Feb: 1.41" · normal 1.33" (0.7–2.0)

Feb

Mar: 1.00" · normal 1.77" (0.9–3.0)

Mar

Apr: 1.54" · normal 2.34" (1.1–3.7)

Apr

May: 2.08" · normal 2.04" (0.9–3.5)

May

Jun: 0.57" · normal 1.53" (0.4–2.8)

Jun

Jul: 0.18" (so far)· normal 2.95" (1.3–5.2)

Jul

Aug: normal 3.11" (1.4–4.3)

Aug

Sep: normal 1.68" (0.7–2.5)

Sep

Oct: normal 1.42" (0.7–2.1)

Oct

Nov: normal 1.25" (0.5–1.8)

Nov

Dec: normal 1.23" (0.4–2.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo11:09 AM

Your History · Arkansas River At Granite, Co.

Track your history

Station Location

39.0430, -106.2657

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DATA · CO DWR · NOAA · NWSUPDATED 2026-07-06 06:00 UTC

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