USGS · 13135520

NF BIG WOOD RIVER

USGS · 13135520LIVE

NF BIG WOOD RIVER NR SAWTOOTH NRA HQ NR KETCHUM ID

BLAINE COUNTY, ID43.7861°N, -114.4192°W Updated 13 hr ago

FLOW RATE

82cfs

AIR TEMP

51°F

WIND

1mph NNW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

82cfs 8.6% vs avg

Optimal band: 20–26 cfs

PERIOD HIGH

255cfs

PERIOD LOW

15cfs

RUNNABLE

33%

last 1 year in band

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

10.0in

-27% vs normal

10.01 in of precipitation so far this year, 27% below the 30-year normal of 13.72 in for this point in the season.

YTD Total

10.0in

This year so far

Normal to Date

13.7in

30-yr average

Typical Range

8.8–19.8in

10th–90th pct YTD

Departure

-27%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.98" · normal 2.53" (1.0–4.5)

Jan

Feb: 2.26" · normal 2.26" (0.6–4.3)

Feb

Mar: 1.55" · normal 2.72" (1.0–5.0)

Mar

Apr: 2.64" · normal 2.18" (1.0–3.3)

Apr

May: 0.56" · normal 2.18" (0.7–3.5)

May

Jun: 1.77" · normal 1.78" (0.6–3.6)

Jun

Jul: 0.25" (so far)· normal 0.76" (0.2–1.4)

Jul

Aug: normal 0.72" (0.2–1.7)

Aug

Sep: normal 1.30" (0.4–2.4)

Sep

Oct: normal 1.68" (0.7–2.8)

Oct

Nov: normal 2.19" (0.8–3.7)

Nov

Dec: normal 3.22" (1.2–5.1)

Dec

Baseline 1991–2020 · Source: Open-Meteo01:40 PM

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Station Location

43.7861, -114.4192

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 13:41 UTC

Site #13135520·USGS

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