USGS · 03338780

NORTH FORK VERMILION

USGS · 03338780LIVE

NORTH FORK VERMILION RIVER NEAR BISMARCK, IL

VERMILION COUNTY, IL40.2657°N, -87.6421°W

AIR TEMP

81°F

WIND

7mph S

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

25.4in

≈ normal

25.39 in of precipitation so far this year — about average for this point in the season (normal 22.35 in).

YTD Total

25.4in

This year so far

Normal to Date

22.4in

30-yr average

Typical Range

17.2–27.2in

10th–90th pct YTD

Departure

+14%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 1.21" · normal 2.70" (1.1–4.2)

Jan

Feb: 0.61" · normal 2.33" (1.0–4.0)

Feb

Mar: 4.91" · normal 3.39" (1.5–5.1)

Mar

Apr: 8.58" · normal 4.41" (2.5–7.0)

Apr

May: 2.39" · normal 4.57" (2.7–6.9)

May

Jun: 6.72" · normal 4.44" (2.4–7.2)

Jun

Jul: 0.97" (so far)· normal 3.84" (2.0–5.9)

Jul

Aug: normal 3.09" (1.5–4.3)

Aug

Sep: normal 2.94" (0.9–5.3)

Sep

Oct: normal 3.17" (1.6–6.3)

Oct

Nov: normal 3.21" (1.5–5.4)

Nov

Dec: normal 2.53" (1.4–3.9)

Dec

Baseline 1991–2020 · Source: Open-Meteo02:22 AM

Your History · NORTH FORK VERMILION RIVER NEAR BISMARCK, IL

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Station Location

40.2657, -87.6421

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DATA · USGS · NOAA · NWSUPDATED 2026-07-04 03:45 UTC

Site #03338780·USGS

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