CO DWR · PLAMERCO

SOUTH PLATTE RIVER

CO DWR · PLAMERCOLIVE

South Platte River At Merino, Co

LOGAN COUNTY, CO40.4739°N, -103.3457°W Updated 1 d ago

FLOW RATE

92cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

92cfs

Optimal band: 80–108 cfs

PERIOD HIGH

170cfs

PERIOD LOW

74cfs

RUNNABLE

43%

last 7 day in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

5.8in

-39% vs normal

5.82 in of precipitation so far this year, 39% below the 30-year normal of 9.52 in for this point in the season.

YTD Total

5.8in

This year so far

Normal to Date

9.5in

30-yr average

Typical Range

6.4–12.8in

10th–90th pct YTD

Departure

-39%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.19" · normal 0.43" (0.1–0.8)

Jan

Feb: 0.22" · normal 0.61" (0.2–1.1)

Feb

Mar: 0.63" · normal 1.15" (0.4–1.9)

Mar

Apr: 0.89" · normal 2.13" (0.9–3.6)

Apr

May: 2.21" · normal 2.86" (0.9–4.7)

May

Jun: 1.37" · normal 2.06" (0.7–3.5)

Jun

Jul: 0.30" (so far)· normal 1.78" (0.6–3.3)

Jul

Aug: normal 1.81" (0.6–3.4)

Aug

Sep: normal 1.16" (0.1–2.1)

Sep

Oct: normal 1.37" (0.5–2.6)

Oct

Nov: normal 0.67" (0.2–1.2)

Nov

Dec: normal 0.56" (0.2–1.1)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:22 PM

Your History · South Platte River At Merino, Co

Track your history

Station Location

40.4739, -103.3457

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

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