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

GREEN RIVER AT WILLIAMSTOWN, MA

MASSACHUSETTS42.7089°N, -73.1968°W Updated 34 min ago
FLOW RATE
30.5cfs
GAUGE HT
1.76ft
AIR TEMP
83°F
WIND
9mph W
FISH INDEX
56SCORE / 100
GOOD · 3 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
30.5cfs 35.4% vs avg
Optimal band: 2737 cfs
PERIOD HIGH
33.1cfs
PERIOD LOW
30.5cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

1.76ft
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

16.7in

≈ normal

16.74 in of precipitation so far this year — about average for this point in the season (normal 19.32 in).

YTD Total

16.7in

This year so far

Normal to Date

19.3in

30-yr average

Typical Range

15.3–22.9in

10th–90th pct YTD

Departure

-13%

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: 0.05" (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-Meteo06:54 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
85°
52°
SAT
85°
66°
SUN
72°
51°
MON
75°
46°
TUE
81°
52°
WED
88°
60°
THU
69°
63°
TIME
FRI
6
NOW
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
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
TEMP
hourly forecast
83°
mild
83°
81°
76°
72°
71°
70°
69°
68°
67°
67°
67°
66°
66°
69°
76°
78°
80°
79°
79°
81°
84°
84°
82°
85°
70°
69°
70°
69°
68°
66°
65°
65°
64°
63°
62°
62°
63°
64°
64°
63°
63°
64°
66°
70°
68°
72°
70°
67°
64°
61°
59°
54°
51°
51°
49°
48°
47°
47°
47°
46°
47°
52°
58°
64°
68°
71°
73°
74°
75°
75°
75°
75°
74°
70°
64°
60°
59°
58°
57°
57°
56°
55°
53°
52°
54°
59°
66°
70°
74°
77°
78°
80°
81°
81°
81°
80°
79°
75°
68°
65°
64°
63°
62°
62°
61°
61°
60°
60°
61°
67°
72°
76°
80°
84°
86°
WIND
mph · gust · dir
8mph WNW
G 14 mph
8
G14
WNW
4
G13
W
5
WSW
3
G4
SW
5
S
5
SE
4
ENE
3
SW
1
S
4
SW
1
ESE
3
G4
NE
3
G4
ENE
2
G3
E
3
G9
E
6
G14
SSW
8
G17
SSW
9
G14
WSW
8
G13
SW
6
G17
SSW
11
G20
SSW
13
G23
SSW
10
G24
SSW
12
G23
SW
10
G22
WNW
8
G20
WSW
1
G11
ESE
5
G12
S
4
G15
ESE
6
G13
S
4
G10
SSE
6
G22
SW
6
G19
S
5
G16
S
5
G13
SSE
5
G11
SE
5
G18
SE
6
G20
W
8
G20
WNW
7
G17
WNW
6
G17
WNW
8
G17
WNW
12
G16
WNW
14
G18
WNW
13
G19
WNW
15
G19
NW
15
G20
NNW
12
G20
NNW
10
G20
NNW
9
G23
NNW
9
G23
NNW
6
G12
NNW
5
G6
NNW
5
NNW
5
NNW
5
NNW
4
N
5
N
5
N
4
NNW
4
NNW
4
NNW
6
NNW
8
N
8
N
8
N
9
NNW
10
NW
11
NW
10
G11
NW
9
G11
NNW
8
G10
NNW
5
G6
N
3
WNW
3
W
2
WNW
1
G2
NNW
1
G3
NNE
1
G2
NNE
0
G2
N
2
N
2
NNE
1
G3
NE
1
NW
2
NNW
1
NNW
2
G3
NW
3
G5
NW
3
G6
NW
4
G6
NW
6
G7
NW
7
NW
7
NW
7
NW
6
G7
NNW
4
G7
N
2
G3
NNE
2
E
2
ESE
2
G3
ESE
3
ESE
2
G3
ESE
2
G3
ESE
2
G3
SE
2
G3
SE
2
G3
ESE
1
G3
SE
2
G3
E
1
G2
E
1
G2
E
1
G2
W
1
G3
W
1
G5
WSW
2
G6
WSW
3
G7
WSW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
2%
2%
3%
3%
3%
4%
4%
5%
9%
13%
20%
21%
24%
27%
29%
38%
35%
41%
40%
35%
25%
13%
77%
77%
29%
29%
29%
29%
29%
29%
59%
59%
59%
59%
59%
59%
47%
47%
47%
47%
47%
47%
7%
7%
7%
7%
7%
7%
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%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
6%
6%
6%
6%
CLOUDS
cover %
100%
overcast
100%
100%
100%
100%
100%
100%
100%
100%
100%
89%
100%
100%
92%
100%
100%
100%
100%
100%
100%
100%
95%
100%
100%
56%
100%
100%
100%
100%
100%
100%
100%
100%
2%
5%
18%
24%
33%
63%
77%
100%
100%
100%
98%
63%
83%
29%
52%
78%
39%
72%
100%
0%
10%
37%
33%
32%
33%
7%
100%
5%
0%
0%
0%
0%
0%
0%
10%
12%
10%
5%
5%
6%
6%
6%
8%
20%
7%
6%
0%
0%
0%
10%
32%
19%
12%
100%
17%
21%
84%
8%
10%
12%
0%
12%
8%
5%
6%
12%
19%
7%
5%
6%
5%
0%
0%
0%
0%
5%
5%
6%
6%
15%
28%
34%
27%
PRESSURE
hPa · trend
991
991991990989985984984986989995998999996998998996993994994993
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
56
Temperature
Too Hot
Wind
Light
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:15 AM
SUNSET
08:27 PM
15H 12M OF DAYLIGHT2H 38M REMAINING
MOON PHASE
Waning Gibbous
72% illuminated

Station Location

42.7089, -73.1968
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-05 17:49 UTC
Site #01333000·USGS

Create a free account to save favorites, set flow alerts, and track conditions