Waterlands
Tualatin River
USGS · 14207500
TUALATIN RIVER
USGS · 14207500LIVE

TUALATIN RIVER AT WEST LINN, OR

WEST LINN, OR45.3507°N, -122.6762°W Updated 13 min ago
FLOW RATE
221cfs
GAUGE HT
2.92ft
AIR TEMP
63°F
WIND
5mph NNE
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
221cfs 10.0% vs avg
Optimal band: 206278 cfs
PERIOD HIGH
258cfs
PERIOD LOW
221cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

2.92ft
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

24.6in

≈ normal

24.64 in of precipitation so far this year — about average for this point in the season (normal 26.42 in).

YTD Total

24.6in

This year so far

Normal to Date

26.4in

30-yr average

Typical Range

18.3–34.7in

10th–90th pct YTD

Departure

-7%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.84" · normal 6.69" (3.4–9.5)
Jan
Feb: 6.86" · normal 5.19" (2.6–8.1)
Feb
Mar: 6.30" · normal 5.58" (3.1–8.4)
Mar
Apr: 4.02" · normal 4.35" (2.4–6.3)
Apr
May: 1.47" · normal 2.74" (1.0–4.5)
May
Jun: 2.15" · normal 1.68" (1.0–3.0)
Jun
Jul: 0.00" (so far)· normal 0.41" (0.1–0.8)
Jul
Aug: normal 0.55" (0.0–0.9)
Aug
Sep: normal 1.71" (0.1–3.7)
Sep
Oct: normal 4.15" (1.6–6.7)
Oct
Nov: normal 6.83" (3.1–9.9)
Nov
Dec: normal 7.68" (4.2–10.6)
Dec
Baseline 19912020 · Source: Open-Meteo05:12 PM
Your History · TUALATIN RIVER AT WEST LINN, OR

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Weather Conditions
WEATHER CONDITIONS
TODAY
80°
52°
FRI
77°
53°
SAT
81°
59°
SUN
85°
53°
MON
87°
59°
TUE
89°
59°
WED
80°
56°
TIME
THU
5
NOW
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
MON
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
TUE
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
TEMP
hourly forecast
80°
mild
80°
79°
77°
75°
70°
67°
64°
62°
60°
58°
56°
54°
53°
53°
56°
59°
63°
66°
69°
72°
74°
76°
77°
77°
77°
75°
74°
71°
69°
67°
66°
64°
64°
64°
63°
61°
60°
59°
59°
61°
63°
67°
70°
73°
76°
79°
80°
81°
80°
79°
76°
73°
67°
64°
62°
60°
59°
58°
56°
55°
54°
53°
54°
57°
60°
65°
70°
74°
78°
81°
83°
84°
85°
84°
82°
78°
73°
70°
68°
66°
64°
63°
62°
60°
59°
59°
61°
65°
70°
74°
78°
82°
84°
85°
85°
87°
87°
84°
81°
80°
76°
73°
74°
71°
67°
65°
62°
60°
59°
59°
61°
63°
67°
WIND
mph · gust · dir
7mph NNE
G 9 mph
7
G9
NNE
8
G11
NNE
8
G12
NNE
7
G12
NNE
5
G13
N
5
G12
NNW
4
G10
NNW
4
G8
ENE
4
G10
NE
4
G10
ENE
4
G7
ENE
4
G7
E
4
G7
E
3
G6
E
3
G6
E
2
G3
ENE
1
G4
NE
2
G5
N
2
G4
N
3
G4
N
4
G5
NNE
4
G6
NNE
6
G7
NNE
7
G11
N
8
G10
N
8
G11
N
7
G10
N
9
G15
NNE
7
G13
N
6
G11
NNW
5
G9
NNW
6
G9
NW
3
G6
NNW
2
G4
WNW
2
G5
W
3
G10
W
4
G10
SSE
5
G11
SSW
4
G9
SW
4
G8
SW
5
G7
SW
5
G7
SW
5
G6
SSW
5
G6
SW
4
G5
SW
3
G5
WSW
2
G6
WNW
3
G7
NW
5
G8
NNW
7
G8
NNW
9
G11
NNW
9
G16
NNW
9
G14
NNW
7
G11
NNW
5
NNW
4
NNW
4
NNW
3
NNE
2
G3
NE
3
G4
N
4
N
4
NNE
4
G9
N
4
G8
NNE
5
G8
N
6
G8
N
5
G7
N
6
G7
N
6
G7
N
5
G6
N
6
NNW
6
NNW
6
N
7
N
7
G9
N
6
G9
N
4
G7
N
4
N
3
NNE
2
G3
NNE
3
N
3
N
3
NNE
3
NNE
3
NNE
3
NNE
3
G4
NNE
3
G5
N
3
G5
N
4
G5
NNW
4
G5
NNW
4
G5
NNW
3
WNW
3
G4
W
3
G4
WNW
2
G3
WNW
5
SW
0
G5
S
2
SE
2
G3
NNW
2
G3
NNW
0
G4
S
3
NNE
1
G5
NE
2
G8
SSE
4
G11
S
4
G10
S
4
G8
S
4
G6
S
4
G6
S
3
G6
SSW
3
G6
SSW
3
G6
SSW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
1%
1%
2%
0%
0%
13%
13%
13%
13%
13%
13%
16%
16%
16%
16%
16%
16%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
3%
5%
3%
0%
3%
4%
12%
61%
51%
87%
88%
100%
100%
92%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
93%
35%
14%
21%
19%
0%
0%
0%
0%
21%
0%
0%
0%
0%
100%
100%
100%
100%
100%
63%
100%
100%
100%
100%
93%
5%
7%
5%
0%
0%
0%
0%
0%
6%
0%
0%
0%
5%
11%
27%
100%
100%
62%
6%
100%
87%
8%
63%
66%
97%
90%
100%
100%
100%
100%
100%
100%
100%
100%
87%
14%
100%
83%
59%
38%
22%
9%
0%
0%
0%
0%
0%
PRESSURE
hPa · trend
1012
1012101210121012100910121013101410121016101610141010101110111011100910101015
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Light
Pressure
Falling — Active
Moon Phase
Average
DAYLIGHT
SUNRISE
05:32 AM
SUNSET
08:59 PM
15H 27M OF DAYLIGHT
MOON PHASE
Waning Crescent
26% illuminated

Station Location

45.3507, -122.6762
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-09 17:00 UTC
Site #14207500·USGS

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