Waterlands
Chehalis River
USGS · 12031000
CHEHALIS RIVER
USGS · 12031000LIVE

CHEHALIS RIVER AT PORTER, WA

GRAYS HARBOR COUNTY, WA46.9393°N, -123.3143°W Updated 1 d ago
FLOW RATE
552cfs
GAUGE HT
30.95ft
AIR TEMP
71°F
WIND
6mph NNW
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
552cfs 13.5% vs avg
Optimal band: 1,612–2,182 cfs
PERIOD HIGH
32,946cfs
PERIOD LOW
237cfs
RUNNABLE
5%
last 1 year in band

Gauge Height

30.95ft
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

30.7in

≈ normal

30.67 in of precipitation so far this year — about average for this point in the season (normal 33.45 in).

YTD Total

30.7in

This year so far

Normal to Date

33.5in

30-yr average

Typical Range

24.3–41.7in

10th–90th pct YTD

Departure

-8%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 5.75" · normal 8.87" (5.1–12.8)
Jan
Feb: 5.91" · normal 6.27" (2.9–9.4)
Feb
Mar: 11.00" · normal 7.14" (4.1–12.3)
Mar
Apr: 3.56" · normal 5.36" (2.6–8.8)
Apr
May: 2.20" · normal 3.27" (0.9–5.4)
May
Jun: 2.12" · normal 2.15" (0.7–3.6)
Jun
Jul: 0.14" (so far)· normal 0.77" (0.1–1.6)
Jul
Aug: normal 1.24" (0.1–3.1)
Aug
Sep: normal 2.50" (0.1–4.3)
Sep
Oct: normal 6.12" (2.1–9.4)
Oct
Nov: normal 9.64" (4.3–14.8)
Nov
Dec: normal 9.33" (4.9–13.2)
Dec
Baseline 1991–2020 · Source: Open-Meteo00:10 UTC
Your History · CHEHALIS RIVER AT PORTER, WA

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Weather Conditions
WEATHER CONDITIONS
TODAY
71°
54°
MON
78°
49°
TUE
82°
50°
WED
80°
49°
THU
70°
52°
FRI
75°
51°
SAT
81°
53°
TIME
MON
12
NOW
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
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
WED
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
THU
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
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
TEMP
hourly forecast
55°
mild
55°
54°
53°
52°
50°
49°
49°
52°
56°
61°
66°
70°
72°
74°
76°
77°
78°
76°
74°
72°
69°
64°
61°
59°
57°
55°
54°
53°
52°
51°
50°
54°
57°
61°
67°
73°
78°
80°
82°
82°
81°
78°
74°
70°
65°
56°
52°
51°
50°
50°
50°
50°
50°
49°
49°
53°
59°
64°
69°
73°
76°
79°
80°
80°
79°
76°
73°
69°
65°
58°
54°
53°
53°
53°
53°
53°
52°
53°
53°
56°
56°
58°
60°
63°
68°
70°
69°
69°
70°
70°
68°
65°
62°
60°
53°
52°
51°
54°
54°
53°
53°
52°
53°
55°
58°
60°
63°
65°
68°
71°
74°
75°
75°
WIND
mph · gust · dir
3mph NNE
G 6 mph
3
G6
NNE
4
G6
NE
4
ENE
4
NE
5
NE
5
NE
4
NNE
2
G3
NNE
2
G3
N
2
G5
NNW
2
G8
NW
4
G5
N
5
G6
N
5
N
5
NNW
5
NNW
5
G7
NW
9
G12
NW
10
G14
NW
9
G13
NW
5
G11
NW
4
G13
NNW
4
G11
NNE
5
G10
ENE
5
G9
E
5
E
5
E
5
E
5
E
4
E
5
E
3
G7
E
2
G5
NNW
3
G5
WNW
3
G4
WNW
3
WNW
3
W
4
W
5
W
8
W
11
W
11
W
10
G11
W
8
G13
W
6
G15
W
5
G12
W
3
G8
W
4
G5
W
4
G7
W
3
G7
W
3
G7
WNW
3
G4
WNW
2
G5
WNW
2
G4
WNW
2
G5
NW
2
G7
WNW
2
G7
NW
3
G7
WNW
4
G8
W
4
G8
WNW
6
G9
W
7
G9
WNW
8
G10
WNW
9
G11
WNW
9
G12
WNW
10
G14
WNW
8
G16
W
8
G19
WNW
7
G22
WNW
5
G23
WNW
4
G22
WNW
4
G22
WNW
4
G18
W
3
G14
WSW
4
G13
W
3
G12
W
3
G11
W
2
G11
WSW
3
G9
SW
3
G8
W
3
G6
W
3
W
3
W
4
W
6
W
7
WNW
8
W
8
W
10
W
10
W
11
WSW
9
G10
WSW
7
G11
W
6
G10
WSW
3
G7
W
3
G7
WSW
3
G8
WSW
3
G9
WSW
2
G10
SW
3
G10
S
3
G9
SSE
4
G8
SSE
3
G7
SE
3
G7
SSE
3
G6
SSE
3
G6
SSE
3
G6
SW
4
G7
WSW
5
G7
W
6
G7
W
7
W
8
W
9
W
PRECIP
chance %
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%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
4%
4%
4%
4%
4%
4%
23%
23%
23%
23%
23%
23%
33%
33%
33%
33%
33%
33%
24%
24%
24%
24%
24%
24%
16%
16%
16%
16%
16%
16%
10%
10%
10%
10%
10%
10%
5%
5%
5%
5%
5%
5%
3%
3%
3%
3%
3%
CLOUDS
cover %
2%
clear
2%
0%
1%
2%
3%
2%
2%
4%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
2%
3%
1%
3%
4%
10%
7%
5%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
8%
100%
100%
100%
0%
5%
0%
0%
0%
0%
0%
0%
5%
6%
10%
100%
5%
5%
6%
5%
0%
0%
0%
13%
34%
33%
40%
46%
95%
66%
100%
100%
100%
100%
100%
83%
59%
75%
87%
42%
45%
9%
21%
40%
100%
0%
0%
30%
80%
64%
66%
78%
73%
100%
100%
100%
100%
100%
100%
96%
90%
79%
61%
39%
PRESSURE
hPa · trend
1018
1018101910181017101810201018101610191019101710161017101710151012101510161017
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Warm
Wind
Light
Pressure
Stable
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:31 AM
SUNSET
09:06 PM
15H 35M OF DAYLIGHT
MOON PHASE
New Moon
4% illuminated
PEAK ACTIVITY

Station Location

46.9393, -123.3143
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC
Site #12031000·USGS

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