Waterlands
Matanzas C Res Outflow nr Santa Rosa Ca River
USGS · 11466150
MATANZAS C RES OUTFLOW NR SANTA ROSA CA RIVER
USGS · 11466150LIVE

MATANZAS C RES OUTFLOW NR SANTA ROSA CA

SONOMA COUNTY, CA38.4055°N, -122.6528°W
AIR TEMP
52°F
WIND
0mph W
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
cfs
No flow data available
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

14.2in

-27% vs normal

14.15 in of precipitation so far this year, 27% below the 30-year normal of 19.31 in for this point in the season.

YTD Total

14.2in

This year so far

Normal to Date

19.3in

30-yr average

Typical Range

8.7–33.6in

10th–90th pct YTD

Departure

-27%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.83" · normal 5.71" (0.5–11.7)
Jan
Feb: 4.82" · normal 5.84" (0.3–12.0)
Feb
Mar: 0.30" · normal 4.44" (0.5–10.1)
Mar
Apr: 4.33" · normal 1.94" (0.6–3.6)
Apr
May: 0.88" · normal 1.10" (0.0–2.9)
May
Jun: 0.00" · normal 0.27" (0.0–0.8)
Jun
Jul: 0.00" (so far)· normal 0.01" (0.0–0.0)
Jul
Aug: normal 0.04" (0.0–0.1)
Aug
Sep: normal 0.13" (0.0–0.3)
Sep
Oct: normal 1.34" (0.1–3.2)
Oct
Nov: normal 3.00" (0.7–6.3)
Nov
Dec: normal 5.91" (0.4–11.9)
Dec
Baseline 19912020 · Source: Open-Meteo08:15 AM
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Weather Conditions
WEATHER CONDITIONS
TODAY
79°
50°
SAT
79°
49°
SUN
83°
47°
MON
76°
51°
TUE
82°
50°
WED
86°
49°
THU
84°
51°
TIME
FRI
11
NOW
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
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
TEMP
hourly forecast
71°
mild
71°
76°
78°
79°
78°
78°
76°
74°
71°
65°
60°
57°
55°
54°
52°
51°
51°
50°
49°
49°
52°
58°
63°
68°
74°
78°
79°
79°
78°
75°
72°
69°
66°
61°
55°
52°
50°
49°
48°
48°
48°
47°
48°
49°
51°
55°
61°
70°
77°
81°
83°
82°
78°
72°
71°
70°
65°
59°
52°
51°
52°
52°
53°
53°
53°
53°
53°
53°
54°
57°
62°
67°
72°
75°
76°
75°
75°
71°
67°
65°
62°
57°
51°
51°
52°
52°
52°
53°
52°
52°
51°
51°
53°
57°
63°
71°
77°
81°
82°
79°
79°
77°
76°
71°
66°
61°
57°
53°
50°
50°
50°
50°
WIND
mph · gust · dir
5mph WSW
G 6 mph
5
G6
WSW
5
G7
WSW
7
G8
WSW
9
G10
WSW
9
G10
WSW
9
G10
WSW
8
G10
WSW
8
G9
SW
7
G9
SW
6
G8
SSW
4
G9
SSW
3
G7
SSW
3
G8
SSW
3
G7
S
3
G7
S
2
G5
S
3
G5
SSW
2
G3
SW
1
G3
WSW
1
G3
SW
0
G2
N
1
G2
W
2
W
3
WSW
5
SW
6
G7
WSW
8
G9
WSW
9
G10
WSW
10
G12
WSW
10
G11
WSW
9
G11
SW
9
G11
SW
7
G9
SW
6
G9
SW
5
G8
SW
3
G6
SW
3
G4
SW
3
SW
2
SW
3
SW
2
G3
SW
1
WSW
2
G3
SW
2
G3
SW
2
G3
W
3
WNW
2
G3
W
2
G3
SW
3
G4
SW
4
G5
SW
8
WSW
12
WSW
13
WSW
10
WSW
8
SW
7
G8
SW
7
SW
6
G7
SW
4
G7
SW
4
G6
SW
4
SW
4
SW
4
SW
4
SW
4
SW
3
WSW
3
WSW
4
SW
3
SW
3
SW
4
SW
4
SW
7
SW
9
SW
11
SW
11
SW
11
SW
11
SW
10
SW
7
G8
SW
7
SW
6
SSW
5
SSW
5
SSW
5
SSW
4
SSW
3
S
3
S
2
SSW
2
SSW
2
SSW
1
SW
1
G2
SW
2
W
2
SW
3
WSW
4
WSW
7
WSW
10
WSW
11
WSW
10
WSW
10
SW
7
SW
6
G7
SSW
6
G7
SSW
5
G7
S
4
G5
S
3
S
2
SSE
2
SSE
2
SSE
2
SSE
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%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
4%
4%
4%
4%
4%
4%
3%
3%
3%
3%
3%
3%
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%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
3%
clear
3%
2%
1%
1%
0%
0%
0%
0%
0%
2%
3%
4%
4%
4%
4%
5%
3%
4%
5%
5%
7%
4%
3%
2%
2%
0%
0%
0%
1%
0%
8%
8%
2%
4%
29%
53%
47%
100%
41%
41%
100%
89%
100%
100%
100%
100%
100%
6%
100%
100%
100%
100%
100%
29%
0%
0%
12%
23%
0%
40%
97%
100%
100%
100%
100%
100%
100%
100%
100%
95%
18%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
85%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
9%
0%
0%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
PRESSURE
hPa · trend
1001
100199910001000100210001000999999998100099910009991000100010009981000
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Calm
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:51 AM
SUNSET
08:38 PM
14H 47M OF DAYLIGHT9H 47M REMAINING
MOON PHASE
Waning Gibbous
87% illuminated

Station Location

38.4055, -122.6528
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-03 10:51 UTC
Site #11466150·USGS

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