CO DWR · PLAANTCO

SOUTH PLATTE RIVER

CO DWR · PLAANTCOLIVE

South Platte River Below Antero Reservoir

COLORADO38.9939°N, -105.8946°W Updated 1 d ago

FLOW RATE

3cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

3cfs

Optimal band: 4–6 cfs

PERIOD HIGH

537cfs

PERIOD LOW

1cfs

RUNNABLE

71%

last 1 year in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

6.0in

-30% vs normal

6.03 in of precipitation so far this year, 30% below the 30-year normal of 8.65 in for this point in the season.

YTD Total

6.0in

This year so far

Normal to Date

8.7in

30-yr average

Typical Range

5.8–11.3in

10th–90th pct YTD

Departure

-30%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.22" · normal 0.78" (0.3–1.6)

Jan

Feb: 0.65" · normal 0.87" (0.5–1.3)

Feb

Mar: 0.78" · normal 1.30" (0.6–2.3)

Mar

Apr: 1.25" · normal 1.92" (0.7–3.1)

Apr

May: 2.58" · normal 1.87" (0.9–3.0)

May

Jun: 0.45" · normal 1.49" (0.5–2.8)

Jun

Jul: 0.10" (so far)· normal 2.63" (1.2–4.7)

Jul

Aug: normal 2.51" (1.0–3.7)

Aug

Sep: normal 1.34" (0.6–2.1)

Sep

Oct: normal 1.13" (0.4–1.9)

Oct

Nov: normal 0.90" (0.4–1.5)

Nov

Dec: normal 0.87" (0.3–1.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo05:07 PM

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Station Location

38.9939, -105.8946

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

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