USGS · 04118000

THORNAPPLE RIVER

USGS · 04118000LIVE

THORNAPPLE RIVER NEAR CALEDONIA, MI

CALEDONIA CHARTER TOWNSHIP, MI42.8111°N, -85.4834°W

AIR TEMP

62°F

WIND

3mph WSW

FISH INDEX

88SCORE / 100

EPIC · 5 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

22.7in

≈ normal

22.73 in of precipitation so far this year — about average for this point in the season (normal 20.45 in).

YTD Total

22.7in

This year so far

Normal to Date

20.4in

30-yr average

Typical Range

16.3–23.9in

10th–90th pct YTD

Departure

+11%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 2.67" · normal 2.60" (1.2–4.5)

Jan

Feb: 1.27" · normal 2.07" (1.0–3.4)

Feb

Mar: 4.25" · normal 2.53" (1.1–3.8)

Mar

Apr: 7.01" · normal 4.02" (2.7–5.8)

Apr

May: 1.70" · normal 4.21" (2.2–6.1)

May

Jun: 4.86" · normal 4.16" (2.3–6.2)

Jun

Jul: 0.97" (so far)· normal 3.69" (2.4–4.6)

Jul

Aug: normal 3.78" (2.0–6.0)

Aug

Sep: normal 3.07" (1.3–5.6)

Sep

Oct: normal 3.43" (1.6–6.0)

Oct

Nov: normal 2.70" (1.4–4.4)

Nov

Dec: normal 2.37" (1.1–3.4)

Dec

Baseline 1991–2020 · Source: Open-Meteo08:55 AM

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Station Location

42.8111, -85.4834

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