Waterlands
Green River
USGS · 01333000
GREEN RIVER
USGS · 01333000LIVE

GREEN RIVER AT WILLIAMSTOWN, MA

WILLIAMSTOWN, MA42.7089°N, -73.1968°W Updated 54 min ago
FLOW RATE
49.5cfs
GAUGE HT
2.02ft
AIR TEMP
63°F
WIND
4mph NW
FISH INDEX
88SCORE / 100
EPIC · 5 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
49.5cfs 14.1% vs avg
Optimal band: 2230 cfs
PERIOD HIGH
71.8cfs
PERIOD LOW
19.6cfs
RUNNABLE
17%
last 1 day in band

Gauge Height

2.02ft
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

20.6in

≈ normal

20.63 in of precipitation so far this year — about average for this point in the season (normal 21.8 in).

YTD Total

20.6in

This year so far

Normal to Date

21.8in

30-yr average

Typical Range

16.7–25.9in

10th–90th pct YTD

Departure

-5%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.06" · normal 3.49" (2.0–5.1)
Jan
Feb: 1.62" · normal 3.13" (2.0–4.6)
Feb
Mar: 5.52" · normal 4.05" (2.5–6.1)
Mar
Apr: 2.72" · normal 3.96" (2.4–5.6)
Apr
May: 3.78" · normal 3.98" (2.5–5.8)
May
Jun: 3.94" (so far)· normal 4.22" (2.5–6.9)
Jun
Jul: normal 4.05" (2.6–5.8)
Jul
Aug: normal 3.70" (1.9–6.2)
Aug
Sep: normal 3.93" (2.3–7.0)
Sep
Oct: normal 4.69" (1.9–7.4)
Oct
Nov: normal 3.61" (1.9–5.1)
Nov
Dec: normal 4.31" (2.7–5.8)
Dec
Baseline 19912020 · Source: Open-Meteo12:09 PM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
76°
60°
WED
76°
59°
THU
77°
55°
FRI
73°
59°
SAT
81°
58°
SUN
82°
60°
MON
83°
60°
TIME
TUE
12
NOW
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
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
TEMP
hourly forecast
68°
mild
68°
71°
74°
75°
76°
76°
75°
74°
71°
69°
68°
68°
66°
64°
64°
64°
61°
60°
59°
63°
66°
68°
70°
72°
73°
74°
75°
76°
75°
75°
74°
73°
70°
68°
66°
64°
61°
59°
56°
55°
56°
55°
57°
61°
65°
68°
70°
70°
75°
77°
75°
67°
68°
61°
63°
61°
61°
60°
59°
60°
60°
59°
59°
60°
60°
61°
61°
62°
63°
64°
64°
66°
67°
68°
70°
73°
73°
71°
68°
68°
64°
60°
59°
59°
59°
59°
59°
58°
58°
58°
58°
62°
65°
70°
73°
74°
76°
79°
80°
81°
81°
80°
79°
72°
69°
68°
65°
65°
65°
64°
64°
62°
61°
60°
62°
66°
WIND
mph · gust · dir
7mph NNW
G 13 mph
7
G13
NNW
8
G14
NW
9
G14
NW
9
G14
NNW
9
G13
NNW
8
G11
NNW
8
G12
NNW
6
G10
NNW
2
G8
NNW
3
G10
NW
4
SW
2
G7
NW
3
G18
SW
5
S
3
G9
SSW
3
G9
S
4
G9
S
3
G6
SSW
3
G9
S
1
G10
WSW
5
G13
NW
7
G14
NW
9
G17
NW
10
G17
WNW
11
G17
WNW
13
G20
WNW
13
G19
WNW
13
G19
WNW
11
G17
WNW
12
G17
WNW
10
G17
WNW
9
G16
WNW
7
G15
W
6
G18
W
3
G13
SW
3
G6
SW
4
SSW
3
SSW
1
G2
WSW
1
SE
1
G2
SSE
2
SW
2
SSW
1
G2
S
2
SSE
3
SW
4
SW
3
G7
W
4
G10
SSW
6
G13
SSW
10
G11
WSW
2
WNW
4
G5
NW
5
NNE
4
G6
NNE
3
ENE
1
SE
4
SE
2
ESE
4
G5
SE
5
G7
ESE
5
G6
E
2
G4
ESE
3
G5
SE
3
G11
SSE
3
G6
S
3
G8
S
3
G9
SW
3
G7
WSW
3
G7
W
2
G9
WNW
4
G5
W
5
W
5
G7
WNW
7
G9
WNW
10
WNW
10
G12
WNW
10
G12
WNW
6
G10
NW
4
G12
NW
3
G13
WNW
1
G4
WSW
1
G4
NW
1
G3
NE
2
SSE
1
G2
SSE
1
N
2
N
1
NE
2
N
2
NNE
2
G4
NE
3
G5
NE
2
G6
NE
2
G7
ENE
3
G6
ENE
5
G6
ENE
6
E
6
E
7
E
7
E
7
E
4
G7
E
3
N
0
G2
NE
5
SSE
4
SE
2
G3
SE
2
G3
SE
2
G3
SSE
1
G3
S
1
G2
SSE
1
G2
SSE
1
SSE
1
G2
S
1
G3
W
PRECIP
chance %
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
5%
6%
4%
3%
1%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
27%
27%
27%
27%
27%
27%
78%
78%
78%
78%
78%
78%
68%
68%
68%
68%
68%
68%
26%
26%
26%
26%
26%
26%
29%
29%
29%
29%
29%
29%
12%
12%
12%
12%
12%
12%
14%
14%
14%
14%
14%
14%
21%
21%
21%
21%
21%
21%
29%
29%
29%
29%
29%
29%
16%
16%
16%
16%
16%
16%
7%
7%
7%
7%
7%
CLOUDS
cover %
100%
overcast
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
88%
100%
70%
1%
5%
16%
14%
9%
29%
29%
18%
16%
21%
22%
26%
29%
95%
100%
100%
100%
100%
99%
66%
79%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
97%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
96%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
5%
0%
58%
6%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
10%
43%
23%
59%
42%
100%
100%
100%
36%
100%
100%
100%
100%
79%
52%
38%
55%
85%
PRESSURE
hPa · trend
989
989989991990992993994995995994993992993990993994993993994995
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
88
Temperature
Ideal
Wind
Calm
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:15 AM
SUNSET
08:34 PM
15H 19M OF DAYLIGHT8H 25M REMAINING
MOON PHASE
First Quarter
59% illuminated

Station Location

42.7089, -73.1968
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 12:09 UTC
Site #01333000·USGS

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