Waterlands
Nassau River
USGS · 02231291
NASSAU RIVER
USGS · 02231291LIVE

NASSAU RIVER NEAR TISONIA, FL

JACKSONVILLE, FL30.5508°N, -81.5898°W Updated 8 hr ago
FLOW RATE
5,330cfs
AIR TEMP
76°F
WIND
3mph NW
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
5,330cfs 4875.1% vs avg
Optimal band: 11,361–15,371 cfs
PERIOD HIGH
16,589cfs
PERIOD LOW
5,330cfs
RUNNABLE
84%
last 1 year in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

19.7in

≈ normal

19.66 in of precipitation so far this year — about average for this point in the season (normal 19.2 in).

YTD Total

19.7in

This year so far

Normal to Date

19.2in

30-yr average

Typical Range

13.7–24.4in

10th–90th pct YTD

Departure

+2%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 1.56" · normal 2.81" (1.1–5.0)
Jan
Feb: 1.93" · normal 2.65" (0.8–4.0)
Feb
Mar: 2.56" · normal 2.98" (1.4–5.4)
Mar
Apr: 1.89" · normal 2.36" (0.8–4.0)
Apr
May: 6.34" · normal 2.65" (0.7–6.2)
May
Jun: 5.14" · normal 5.41" (2.4–8.3)
Jun
Jul: 0.24" (so far)· normal 4.79" (2.9–7.1)
Jul
Aug: normal 6.17" (3.9–10.5)
Aug
Sep: normal 5.80" (3.0–9.6)
Sep
Oct: normal 3.43" (1.2–6.4)
Oct
Nov: normal 1.94" (0.8–3.6)
Nov
Dec: normal 2.61" (0.8–4.8)
Dec
Baseline 1991–2020 · Source: Open-Meteo07:03 AM
Your History · NASSAU RIVER NEAR TISONIA, FL

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Weather Conditions
WEATHER CONDITIONS
TODAY
91°
75°
SAT
93°
74°
SUN
99°
76°
MON
101°
74°
TUE
103°
78°
WED
100°
80°
THU
102°
79°
TIME
FRI
8
NOW
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
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
TEMP
hourly forecast
79°
mild
79°
83°
85°
87°
89°
90°
90°
90°
91°
89°
88°
86°
84°
82°
81°
79°
78°
77°
76°
76°
75°
74°
74°
74°
79°
82°
85°
89°
92°
93°
92°
93°
92°
91°
90°
87°
86°
84°
84°
83°
82°
81°
80°
80°
80°
79°
78°
78°
80°
84°
88°
92°
95°
99°
96°
89°
87°
87°
82°
76°
77°
78°
78°
76°
77°
77°
77°
77°
76°
75°
74°
75°
78°
83°
87°
91°
94°
97°
99°
101°
101°
98°
96°
92°
89°
84°
83°
85°
84°
83°
81°
80°
80°
79°
78°
78°
81°
85°
89°
92°
95°
98°
100°
102°
103°
98°
93°
95°
92°
89°
86°
83°
82°
81°
81°
80°
WIND
mph · gust · dir
3mph NW
G 4 mph
3
G4
NW
3
G5
NW
3
G5
N
3
G4
NE
6
G7
NE
8
ENE
8
G10
NE
10
G12
ENE
11
G13
ENE
12
G14
ENE
11
G13
E
10
G13
E
9
G14
E
7
G13
ESE
5
G13
SE
4
G14
SSE
4
G13
SSE
3
G10
S
3
G9
SSE
3
G10
SSE
3
G8
SSE
3
G5
SSE
3
G5
S
3
G4
S
3
G7
S
5
G7
S
4
SSW
3
G4
S
2
G4
SW
5
G6
E
11
G13
E
12
G14
E
13
G16
E
13
G16
E
12
G15
ESE
12
G16
SE
9
G14
SE
8
G15
SE
7
G15
S
8
G15
S
8
G15
SSW
5
G12
SW
6
G13
SSW
5
G10
SW
4
G9
SSW
5
G9
SW
5
G9
SW
4
G9
SW
5
G8
SW
5
G8
WSW
5
G7
WSW
5
WSW
4
G5
WSW
3
G5
SSW
6
G8
SE
9
G14
SE
8
G15
SSE
3
G10
SSE
8
NNW
7
G13
N
5
G9
W
3
G7
WNW
4
G6
NW
4
G11
NW
5
G8
S
4
G9
S
4
G8
SW
4
G9
WSW
5
G11
WSW
4
G11
WSW
4
G9
W
4
G8
W
5
G10
WSW
7
G12
SW
8
G12
WSW
8
G11
WSW
7
G9
WSW
6
G8
WSW
6
G8
WSW
5
G9
WSW
3
G10
S
8
G14
SE
12
G17
SE
13
G19
SSE
13
G22
S
11
G22
S
8
G18
S
7
G18
SW
7
G18
SW
8
G17
SW
7
G15
SW
5
G12
SW
5
G11
SSW
5
G13
SW
4
G11
SW
4
G11
WSW
6
G12
WSW
7
G11
WSW
6
G10
WSW
7
G9
WSW
6
G8
WSW
6
G7
WSW
6
G9
WSW
5
G9
W
3
G10
S
8
G13
SE
11
G17
SSE
11
G17
SSE
11
G19
SSE
10
G20
S
9
G20
SSW
9
G19
SW
8
G18
SW
7
G17
SW
6
G16
WSW
6
G16
SW
PRECIP
chance %
5%
5%
10%
12%
15%
9%
8%
8%
8%
5%
4%
4%
3%
3%
2%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
4%
22%
22%
22%
22%
22%
22%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
7%
7%
7%
7%
7%
7%
42%
42%
42%
42%
42%
42%
13%
13%
13%
13%
13%
13%
5%
5%
5%
5%
5%
5%
3%
3%
3%
3%
3%
3%
36%
36%
36%
36%
36%
36%
12%
12%
12%
12%
12%
12%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
2%
28%
28%
28%
28%
28%
28%
16%
16%
16%
16%
16%
16%
2%
CLOUDS
cover %
14%
few
14%
37%
30%
41%
29%
25%
16%
6%
12%
1%
1%
6%
0%
2%
22%
4%
0%
50%
100%
100%
100%
100%
100%
94%
40%
6%
26%
14%
19%
28%
5%
3%
2%
3%
11%
50%
29%
11%
96%
8%
7%
8%
9%
12%
100%
49%
11%
12%
16%
12%
100%
67%
13%
13%
79%
100%
100%
100%
100%
100%
100%
100%
97%
100%
100%
100%
100%
100%
100%
33%
26%
24%
23%
49%
38%
37%
27%
24%
16%
19%
10%
18%
10%
6%
5%
18%
76%
98%
100%
100%
100%
98%
57%
5%
6%
5%
6%
6%
6%
53%
30%
38%
75%
62%
48%
95%
100%
10%
6%
0%
1%
6%
13%
22%
33%
47%
PRESSURE
hPa · trend
1019
10191019101710171018101610151015101610151015101610171016101510171018101710151017
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Warm
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
06:28 AM
SUNSET
08:32 PM
14H 4M OF DAYLIGHT12H 17M REMAINING
MOON PHASE
Waning Gibbous
88% illuminated

Station Location

30.5508, -81.5898
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-03 08:15 UTC
Site #02231291·USGS

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