CO DWR · PLACHECO

SOUTH PLATTE RIVER

CO DWR · PLACHECOLIVE

South Platte River Below Cheesman Reservoir

JEFFERSON COUNTY, CO39.2093°N, -105.2681°W Updated 1 d ago

FLOW RATE

259cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

259cfs

Optimal band: 122–166 cfs

PERIOD HIGH

315cfs

PERIOD LOW

50cfs

RUNNABLE

38%

last 1 year in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

8.8in

-31% vs normal

8.83 in of precipitation so far this year, 31% below the 30-year normal of 12.79 in for this point in the season.

YTD Total

8.8in

This year so far

Normal to Date

12.8in

30-yr average

Typical Range

8.5–15.7in

10th–90th pct YTD

Departure

-31%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.63" · normal 0.81" (0.3–1.3)

Jan

Feb: 0.28" · normal 0.93" (0.4–1.4)

Feb

Mar: 1.61" · normal 1.81" (1.0–2.8)

Mar

Apr: 2.24" · normal 2.76" (1.6–4.0)

Apr

May: 3.36" · normal 3.23" (1.8–5.6)

May

Jun: 0.55" · normal 2.65" (1.4–4.4)

Jun

Jul: 0.16" (so far)· normal 3.53" (1.3–5.7)

Jul

Aug: normal 3.15" (1.5–4.7)

Aug

Sep: normal 1.79" (0.6–3.0)

Sep

Oct: normal 1.52" (0.7–2.9)

Oct

Nov: normal 1.03" (0.5–2.0)

Nov

Dec: normal 0.79" (0.4–1.1)

Dec

Baseline 1991–2020 · Source: Open-Meteo03:55 PM

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Station Location

39.2093, -105.2681

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

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