USGS · 01077400

COCKERMOUTH RIVER

USGS · 01077400LIVE

COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH

GROTON, NH43.7039°N, -71.8333°W Updated 10 hr ago

FLOW RATE

34cfs

AIR TEMP

60°F

WIND

2mph ESE

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

34cfs 129.9% vs avg

Optimal band: 39–53 cfs

PERIOD HIGH

663cfs

PERIOD LOW

26cfs

RUNNABLE

39%

last 30 day in band

Precipitation History

Your History · COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH

Track your history

Sign in to track your sessions at COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH — best days, monthly trends, and time on the water.

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

75°

60°

SAT

75°

59°

SUN

81°

56°

MON

84°

57°

TUE

86°

59°

WED

86°

62°

THU

76°

60°

TIME

FRI

NOW

SAT

SUN

MON

TUE

WED

TEMP

hourly forecast

62°

mild

62°

66°

67°

70°

67°

72°

75°

67°

66°

68°

66°

64°

63°

62°

61°

60°

59°

60°

63°

65°

67°

69°

71°

72°

73°

74°

75°

73°

71°

69°

68°

66°

63°

61°

59°

57°

56°

57°

60°

64°

69°

73°

76°

78°

79°

81°

80°

74°

71°

73°

69°

64°

62°

60°

59°

58°

57°

58°

63°

68°

73°

76°

78°

80°

82°

83°

84°

83°

81°

76°

70°

66°

64°

66°

63°

60°

59°

60°

65°

70°

74°

77°

81°

75°

82°

86°

84°

81°

75°

72°

69°

66°

64°

63°

62°

WIND

mph · gust · dir

6mph SE

G 13 mph

G13

G14

G13

G12

SSW

G13

G14

G28

G15

WNW

G13

G11

WNW

WSW

WNW

G15

WNW

G16

G13

WNW

G10

WNW

NNW

NNE

ESE

WSW

WNW

G10

NNW

G12

G11

G10

NNW

G11

G10

NNW

ENE

WNW

WSW

G10

WNW

G10

G12

ESE

NNW

PRECIP

chance %

36%

29%

16%

24%

29%

33%

57%

65%

46%

26%

17%

10%

11%

28%

26%

19%

CLOUDS

cover %

100%

overcast

100%

90%

75%

87%

100%

25%

47%

100%

34%

100%

63%

100%

93%

100%

37%

100%

97%

21%

42%

53%

11%

36%

94%

100%

63%

82%

100%

21%

50%

100%

44%

59%

52%

11%

10%

33%

62%

100%

77%

23%

88%

100%

75%

100%

74%

100%

84%

63%

49%

57%

64%

70%

76%

78%

PRESSURE

hPa · trend

995

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Calm

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:07 AM

SUNSET

08:33 PM

15H 26M OF DAYLIGHT10H 29M REMAINING

MOON PHASE

Waxing Gibbous

86% illuminated

Station Location

43.7039, -71.8333

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-26 10:04 UTC

Site #01077400·USGS

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