Waterlands
Mattole R nr Petrolia Ca River
USGS · 11469000
MATTOLE R NR PETROLIA CA RIVER
USGS · 11469000LIVE

MATTOLE R NR PETROLIA CA

HUMBOLDT COUNTY, CA40.3132°N, -124.2834°W Updated 8 hr ago
FLOW RATE
46cfs
AIR TEMP
54°F
WIND
3mph WSW
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 7 DAY
46cfs 45.9% vs avg
Optimal band: 4864 cfs
PERIOD HIGH
60cfs
PERIOD LOW
46cfs
RUNNABLE
88%
last 7 day in band
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

26.1in

-18% vs normal

26.14 in of precipitation so far this year, 18% below the 30-year normal of 31.93 in for this point in the season.

YTD Total

26.1in

This year so far

Normal to Date

31.9in

30-yr average

Typical Range

20.2–55.6in

10th–90th pct YTD

Departure

-18%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 8.65" · normal 9.36" (1.5–16.4)
Jan
Feb: 10.43" · normal 8.20" (1.5–15.5)
Feb
Mar: 0.47" · normal 7.52" (2.8–14.1)
Mar
Apr: 5.26" · normal 4.06" (1.8–7.2)
Apr
May: 0.59" · normal 2.09" (0.4–5.6)
May
Jun: 0.74" · normal 0.71" (0.0–1.5)
Jun
Jul: 0.00" (so far)· normal 0.07" (0.0–0.2)
Jul
Aug: normal 0.09" (0.0–0.2)
Aug
Sep: normal 0.50" (0.0–1.4)
Sep
Oct: normal 3.03" (0.2–5.8)
Oct
Nov: normal 6.23" (1.9–10.7)
Nov
Dec: normal 10.67" (2.5–18.9)
Dec
Baseline 19912020 · Source: Open-Meteo06:06 AM
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Weather Conditions
WEATHER CONDITIONS
TODAY
79°
53°
FRI
77°
52°
SAT
86°
54°
SUN
79°
54°
MON
80°
52°
TUE
78°
50°
WED
79°
52°
TIME
THU
9
NOW
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
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
TEMP
hourly forecast
69°
mild
69°
72°
76°
79°
79°
77°
76°
75°
74°
71°
69°
67°
62°
60°
59°
57°
56°
55°
55°
54°
53°
52°
56°
63°
68°
74°
77°
77°
77°
76°
76°
77°
75°
72°
70°
67°
63°
59°
57°
55°
55°
55°
55°
55°
54°
54°
57°
65°
72°
77°
81°
84°
86°
86°
85°
85°
82°
79°
73°
66°
59°
56°
55°
55°
54°
54°
54°
54°
56°
57°
60°
66°
71°
74°
76°
77°
78°
78°
79°
79°
79°
77°
74°
68°
61°
57°
56°
55°
54°
53°
53°
52°
53°
53°
55°
60°
66°
72°
76°
78°
79°
80°
80°
79°
77°
73°
68°
63°
59°
55°
53°
52°
WIND
mph · gust · dir
6mph SW
G 7 mph
6
G7
SW
6
WSW
4
G7
W
5
G10
N
7
G12
N
10
G17
NNE
11
G19
NNE
10
G20
NNE
8
G20
NNE
7
G22
NNE
6
G22
NNE
2
G18
N
12
SW
10
G11
SW
8
G11
SW
5
G10
WSW
4
G8
WSW
5
G9
WSW
4
G8
WSW
4
G8
WSW
3
G7
W
3
G7
WSW
3
G7
WNW
4
G7
WSW
7
SW
3
G12
WSW
3
G16
N
7
G19
NNE
9
G20
NNE
10
G20
NNE
8
G18
NNE
6
G17
NNE
6
G17
NNE
5
G19
NNE
3
G18
NNE
1
G16
W
11
G12
SSE
8
G12
ESE
7
G13
E
8
G13
NNE
8
G13
NNE
7
G11
NNE
8
G13
N
8
G14
N
8
G13
N
6
G11
NNE
5
G9
NNE
4
G8
N
3
G7
NNW
6
G9
NW
6
G9
NW
7
G9
NW
9
NW
10
NW
10
G11
NW
9
G12
NNW
8
G13
NNW
9
G14
N
9
G15
N
8
G15
N
9
G15
NNE
8
G13
NNE
8
G13
NNE
7
G13
NNE
7
G13
NNE
6
G12
NNE
5
G10
N
5
G8
NNE
4
G7
NE
3
G6
NE
2
G5
NNE
2
G7
NNW
3
G5
WNW
5
WNW
7
WNW
9
WNW
9
WNW
9
NW
9
NW
9
G11
NW
8
G11
NW
7
G11
NNW
5
G11
N
5
G11
N
6
G12
N
6
G12
NNE
7
G13
N
7
G12
NNE
6
G12
NNE
6
G11
NNE
6
G11
N
6
G12
N
7
G13
N
6
G11
N
5
G9
N
4
G8
NNW
4
G8
NNW
6
G9
NW
8
G10
NW
10
G11
NW
11
NW
11
NW
12
G13
NNW
11
G15
NNW
12
G16
NNW
11
G17
N
10
G17
N
10
G17
N
9
G16
N
9
G15
NNE
8
G14
NNE
8
G14
NNE
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%
2%
2%
2%
2%
2%
2%
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%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
6%
56%
99%
100%
55%
5%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
72%
100%
21%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
5%
5%
89%
97%
100%
100%
100%
0%
6%
5%
6%
15%
6%
6%
50%
0%
5%
0%
0%
100%
7%
88%
100%
89%
0%
21%
32%
35%
76%
100%
100%
100%
10%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
15%
35%
45%
37%
PRESSURE
hPa · trend
1010
1010101210121013101310141013101210121011101110101011101010101010101110111012
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Calm
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:51 AM
SUNSET
08:50 PM
14H 59M OF DAYLIGHT12H 15M REMAINING
MOON PHASE
Waning Gibbous
94% illuminated

Station Location

40.3132, -124.2834
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 08:35 UTC
Site #11469000·USGS

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