Waterlands
Trinity R A Lewiston Ca River
USGS · 11525500
TRINITY R A LEWISTON CA RIVER
USGS · 11525500LIVE

TRINITY R A LEWISTON CA

TRINITY COUNTY, CA40.7247°N, -122.8011°W Updated 20 min ago
FLOW RATE
450cfs
GAUGE HT
14.05ft
WATER TEMP
10°F
AIR TEMP
66°F
WIND
2mph SW
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
450cfs 36.9% vs avg
Optimal band: 388526 cfs
PERIOD HIGH
457cfs
PERIOD LOW
450cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

14.05ft

Water Temperature

10.2°F
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

18.7in

-31% vs normal

18.69 in of precipitation so far this year, 31% below the 30-year normal of 27 in for this point in the season.

YTD Total

18.7in

This year so far

Normal to Date

27.0in

30-yr average

Typical Range

13.5–38.0in

10th–90th pct YTD

Departure

-31%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 4.58" · normal 7.33" (1.1–13.8)
Jan
Feb: 5.87" · normal 6.76" (1.1–12.5)
Feb
Mar: 0.32" · normal 5.97" (1.6–11.9)
Mar
Apr: 6.36" · normal 3.37" (1.5–6.4)
Apr
May: 1.18" · normal 2.38" (0.5–4.5)
May
Jun: 0.38" · normal 1.14" (0.1–2.7)
Jun
Jul: 0.00" (so far)· normal 0.25" (0.0–0.7)
Jul
Aug: normal 0.25" (0.0–0.5)
Aug
Sep: normal 0.51" (0.0–1.4)
Sep
Oct: normal 2.32" (0.1–4.9)
Oct
Nov: normal 4.59" (1.4–8.0)
Nov
Dec: normal 8.00" (1.1–15.3)
Dec
Baseline 19912020 · Source: Open-Meteo01:31 PM
Your History · TRINITY R A LEWISTON CA

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Weather Conditions
WEATHER CONDITIONS
TODAY
95°
56°
THU
97°
64°
FRI
98°
56°
SAT
95°
50°
SUN
100°
54°
MON
102°
55°
TUE
103°
56°
TIME
WED
4
NOW
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
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
TEMP
hourly forecast
95°
mild
95°
94°
91°
87°
83°
78°
76°
73°
71°
70°
69°
67°
66°
65°
64°
67°
73°
77°
83°
88°
92°
95°
97°
97°
96°
94°
91°
88°
84°
79°
77°
76°
74°
72°
71°
66°
62°
59°
56°
62°
69°
77°
84°
89°
93°
96°
98°
98°
97°
95°
93°
89°
82°
71°
66°
61°
58°
55°
53°
52°
51°
50°
50°
55°
62°
70°
77°
84°
89°
92°
93°
95°
94°
93°
90°
87°
80°
71°
66°
63°
60°
58°
57°
55°
55°
54°
54°
59°
67°
75°
83°
90°
94°
97°
99°
100°
100°
100°
98°
94°
86°
75°
69°
65°
62°
60°
58°
56°
55°
55°
58°
63°
WIND
mph · gust · dir
4mph SSW
G 5 mph
4
G5
SSW
12
G16
WNW
12
G19
W
10
G20
W
8
G19
WSW
8
G15
SSW
6
G10
SSW
5
G9
S
4
G6
S
5
SSE
4
G5
S
4
S
0
G1
SW
3
SE
4
SSE
3
G4
SSE
2
G5
S
2
G4
SSW
2
G4
SW
2
G3
SW
3
SW
3
G4
SW
5
G6
W
9
G11
WNW
11
G15
WNW
13
G20
WNW
12
G20
W
10
G19
W
8
G17
WSW
8
G14
SSW
7
G12
SSW
6
G11
S
7
G9
S
5
G8
S
5
G7
S
4
G5
SSW
2
G3
SW
3
SW
3
WSW
2
G3
WSW
3
W
3
WSW
2
WSW
3
G4
SW
3
G7
SW
5
G9
WSW
6
G11
W
9
G13
W
11
G13
WNW
12
G13
W
11
G12
W
9
G12
WSW
7
G16
WSW
6
WSW
5
WSW
5
W
5
W
4
G5
W
4
WSW
4
WSW
4
WSW
4
WSW
4
WSW
3
G5
WSW
4
G5
W
4
W
4
WSW
4
G5
WSW
4
G7
WSW
6
G9
WSW
8
G12
W
10
G14
W
11
G16
WNW
10
G15
W
10
G13
W
8
G12
WSW
6
G11
WSW
5
WSW
5
W
5
W
5
W
4
G5
W
4
WSW
4
WSW
3
G4
W
3
WSW
3
G4
WSW
3
WSW
3
G4
W
3
W
3
W
3
G4
WSW
5
G7
WSW
6
G10
WSW
8
G12
W
9
G13
W
9
G13
WNW
11
G13
WNW
12
W
9
G13
W
7
G13
WSW
5
WSW
5
WSW
5
W
5
W
4
WSW
4
WSW
4
WSW
4
WSW
4
WSW
4
WSW
3
G4
W
PRECIP
chance %
1%
1%
1%
1%
1%
1%
0%
0%
0%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
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%
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%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
4%
4%
4%
4%
4%
4%
3%
3%
CLOUDS
cover %
0%
clear
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%
5%
6%
6%
0%
6%
6%
43%
75%
100%
100%
100%
52%
54%
8%
100%
99%
100%
100%
100%
100%
100%
41%
100%
100%
100%
100%
100%
100%
100%
54%
100%
100%
100%
89%
87%
16%
5%
0%
5%
64%
93%
100%
13%
10%
52%
6%
5%
0%
0%
0%
0%
1%
1%
2%
2%
2%
PRESSURE
hPa · trend
953
953951950951950948946946943946947949946948948949945947947
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:48 AM
SUNSET
08:44 PM
14H 56M OF DAYLIGHT
MOON PHASE
Last Quarter
37% illuminated

Station Location

40.7247, -122.8011
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 15:15 UTC
Site #11525500·USGS

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