CO DWR · PLASPLCO

SOUTH PLATTE RIVER

CO DWR · PLASPLCOLIVE

South Platte River At South Platte

JEFFERSON COUNTY, CO39.4089°N, -105.1699°W Updated 1 d ago

FLOW RATE

455cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

455cfs

Optimal band: 253–343 cfs

PERIOD HIGH

734cfs

PERIOD LOW

141cfs

RUNNABLE

19%

last 1 year in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

10.2in

-28% vs normal

10.15 in of precipitation so far this year, 28% below the 30-year normal of 14.11 in for this point in the season.

YTD Total

10.2in

This year so far

Normal to Date

14.1in

30-yr average

Typical Range

9.7–17.5in

10th–90th pct YTD

Departure

-28%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.77" · normal 0.94" (0.4–1.4)

Jan

Feb: 0.31" · normal 1.03" (0.5–1.7)

Feb

Mar: 1.39" · normal 1.98" (1.2–2.9)

Mar

Apr: 2.08" · normal 3.05" (1.5–4.5)

Apr

May: 4.01" · normal 3.65" (2.2–5.5)

May

Jun: 1.43" · normal 2.82" (1.3–4.5)

Jun

Jul: 0.17" (so far)· normal 3.33" (1.3–5.5)

Jul

Aug: normal 3.07" (1.3–4.9)

Aug

Sep: normal 1.93" (0.7–3.6)

Sep

Oct: normal 1.72" (0.7–2.9)

Oct

Nov: normal 1.20" (0.6–2.3)

Nov

Dec: normal 0.91" (0.4–1.2)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:55 PM

Your History · South Platte River At South Platte

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Station Location

39.4089, -105.1699

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

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