CO DWR · RIOSFKCO

SOUTH FORK RIO GRANDE RIVER

CO DWR · RIOSFKCOLIVE

South Fork Rio Grande At South Fork

SOUTH FORK, CO37.6596°N, -106.6491°W Updated 1 d ago

FLOW RATE

57cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

57cfs

Optimal band: 75–101 cfs

PERIOD HIGH

2,530cfs

PERIOD LOW

32cfs

RUNNABLE

16%

last 1 year in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

5.0in

-44% vs normal

4.99 in of precipitation so far this year, 44% below the 30-year normal of 8.89 in for this point in the season.

YTD Total

5.0in

This year so far

Normal to Date

8.9in

30-yr average

Typical Range

6.0–11.4in

10th–90th pct YTD

Departure

-44%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.23" · normal 1.10" (0.4–2.1)

Jan

Feb: 1.10" · normal 1.25" (0.5–2.0)

Feb

Mar: 0.21" · normal 1.56" (0.6–2.5)

Mar

Apr: 1.72" · normal 1.80" (0.8–3.0)

Apr

May: 1.19" · normal 1.67" (0.6–3.0)

May

Jun: 0.48" · normal 1.11" (0.5–2.0)

Jun

Jul: 0.06" (so far)· normal 2.35" (1.1–3.5)

Jul

Aug: normal 2.62" (1.3–4.0)

Aug

Sep: normal 1.49" (0.6–2.3)

Sep

Oct: normal 1.47" (0.5–2.4)

Oct

Nov: normal 1.21" (0.4–2.2)

Nov

Dec: normal 1.22" (0.4–2.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo03:57 PM

Your History · South Fork Rio Grande At South Fork

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Station Location

37.6596, -106.6491

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

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