USGS · 03612000

CACHE RIVER

USGS · 03612000LIVE

CACHE RIVER AT FORMAN, IL

JOHNSON COUNTY, IL37.3350°N, -88.9253°W Updated 10 hr ago

FLOW RATE

4,580cfs

GAUGE HT

28.91ft

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

4,580cfs 664.5% vs avg

Optimal band: 184–248 cfs

PERIOD HIGH

4,580cfs

PERIOD LOW

36cfs

RUNNABLE

13%

last 7 day in band

Gauge Height

28.91ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

24.9in

≈ normal

24.85 in of precipitation so far this year — about average for this point in the season (normal 26.57 in).

YTD Total

24.9in

This year so far

Normal to Date

26.6in

30-yr average

Typical Range

21.5–31.2in

10th–90th pct YTD

Departure

-6%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.57" · normal 3.78" (1.6–5.6)

Jan

Feb: 0.91" · normal 3.55" (1.6–5.8)

Feb

Mar: 4.58" · normal 4.68" (2.9–7.0)

Mar

Apr: 4.13" · normal 5.33" (2.6–8.7)

Apr

May: 4.48" · normal 4.64" (2.7–6.3)

May

Jun: 5.56" · normal 3.33" (1.6–5.5)

Jun

Jul: 3.62" (so far)· normal 3.07" (1.4–4.9)

Jul

Aug: normal 2.64" (0.6–4.7)

Aug

Sep: normal 3.21" (0.7–6.2)

Sep

Oct: normal 3.75" (1.4–7.1)

Oct

Nov: normal 4.09" (2.1–7.3)

Nov

Dec: normal 3.96" (2.0–6.0)

Dec

Baseline 1991–2020 · Source: Open-Meteo06:35 UTC

Your History · CACHE RIVER AT FORMAN, IL

Track your history

Station Location

37.3350, -88.9253

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC

Site #03612000·USGS

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