Waterlands
Souhegan River
USGS · 01094000
SOUHEGAN RIVER
USGS · 01094000LIVE

SOUHEGAN RIVER AT MERRIMACK, NH

MERRIMACK, NH42.8576°N, -71.5062°W Updated 13 hr ago
FLOW RATE
62cfs
AIR TEMP
69°F
WIND
4mph NNE
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 7 DAY
62cfs 62.9% vs avg
Optimal band: 5371 cfs
PERIOD HIGH
77cfs
PERIOD LOW
52cfs
RUNNABLE
50%
last 7 day in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

19.0in

≈ normal

19.04 in of precipitation so far this year — about average for this point in the season (normal 21.39 in).

YTD Total

19.0in

This year so far

Normal to Date

21.4in

30-yr average

Typical Range

16.2–25.6in

10th–90th pct YTD

Departure

-11%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 2.63" · normal 3.17" (1.9–4.6)
Jan
Feb: 1.61" · normal 3.02" (1.8–4.2)
Feb
Mar: 3.38" · normal 4.07" (2.0–6.2)
Mar
Apr: 2.79" · normal 3.70" (1.9–6.0)
Apr
May: 4.26" · normal 3.18" (1.4–4.9)
May
Jun: 3.17" · normal 3.57" (1.7–5.4)
Jun
Jul: 1.22" (so far)· normal 3.28" (1.9–4.7)
Jul
Aug: normal 3.43" (1.6–5.3)
Aug
Sep: normal 3.53" (1.3–6.4)
Sep
Oct: normal 3.96" (1.3–6.8)
Oct
Nov: normal 3.40" (1.6–4.9)
Nov
Dec: normal 4.11" (2.3–5.8)
Dec
Baseline 19912020 · Source: Open-Meteo12:13 PM
Your History · SOUHEGAN RIVER AT MERRIMACK, NH

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Weather Conditions
WEATHER CONDITIONS
TODAY
83°
61°
THU
90°
67°
FRI
91°
68°
SAT
84°
61°
SUN
85°
57°
MON
90°
59°
TUE
96°
65°
TIME
WED
2
NOW
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
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
TEMP
hourly forecast
80°
mild
80°
82°
82°
83°
83°
81°
77°
74°
71°
70°
69°
68°
68°
68°
67°
67°
67°
72°
78°
81°
84°
86°
88°
89°
88°
89°
90°
90°
90°
88°
85°
82°
76°
76°
73°
72°
70°
68°
68°
68°
69°
72°
77°
80°
82°
84°
87°
89°
91°
85°
82°
76°
73°
70°
69°
69°
69°
68°
68°
67°
66°
65°
64°
63°
63°
65°
68°
72°
70°
70°
74°
79°
83°
84°
84°
83°
74°
74°
65°
63°
62°
61°
60°
60°
59°
59°
58°
57°
58°
62°
67°
72°
76°
79°
82°
84°
85°
84°
83°
80°
79°
75°
69°
69°
64°
62°
62°
62°
62°
61°
59°
59°
62°
65°
69°
WIND
mph · gust · dir
3mph SE
G 8 mph
3
G8
SE
4
G7
SSE
4
G8
SSE
5
G11
SSE
6
G9
S
5
G7
SSE
4
G9
SSE
4
G8
S
4
G7
SSE
4
G8
SE
4
G9
SSE
4
G8
S
4
G11
SSW
5
G13
SSW
4
G13
S
2
G13
S
3
G10
SSE
2
G12
SW
7
G20
WSW
8
G16
W
8
G14
WSW
8
G15
W
8
G17
WSW
9
G15
WSW
9
G15
SW
10
G15
SW
9
G15
SW
10
G15
SW
10
G15
SW
9
G16
SSW
8
G19
SSW
10
G26
SSW
12
G29
WSW
4
G5
E
4
G9
S
4
G10
S
4
G9
SW
4
G9
WSW
3
G6
WNW
3
G5
W
3
G5
WNW
3
G10
NW
5
G10
NW
6
G11
NW
6
G10
NNW
5
G9
NNW
4
G8
NW
4
G8
WNW
4
G9
WNW
4
G12
NW
6
G17
N
7
G13
ENE
7
G14
ENE
2
WNW
1
G2
ENE
4
SSE
2
NW
2
G3
NNE
2
G9
NW
4
G12
NNW
5
G10
NNW
5
G12
NNW
5
G15
N
5
G14
N
5
G12
N
5
G17
N
7
G19
N
8
G13
NNE
7
G10
NNE
5
G9
NNE
4
G7
NE
3
G7
ENE
2
G7
NE
2
G10
SSW
5
G9
S
6
SSE
6
ESE
8
G15
SE
4
G11
SE
2
G3
SSE
2
G3
SSW
2
G3
SSW
0
G1
SE
1
G4
W
2
G3
NNW
3
N
3
NNW
3
G4
N
3
G5
NNW
3
G5
NNW
3
G5
NNW
2
G5
NNE
2
G3
E
2
G3
ESE
2
G4
SE
2
G5
S
3
G5
S
5
G6
SE
10
ESE
11
ESE
8
ESE
7
G13
ESE
7
G15
SSE
6
G12
SE
4
G7
SSE
4
S
4
SSW
4
SSW
4
SSW
4
SSW
4
SSW
4
SSW
5
SSW
6
SW
6
G7
SW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
2%
3%
4%
4%
5%
9%
1%
6%
5%
12%
12%
12%
12%
12%
12%
3%
3%
3%
3%
3%
3%
11%
11%
11%
11%
11%
11%
51%
51%
51%
51%
51%
51%
7%
7%
7%
7%
7%
7%
5%
5%
5%
5%
5%
5%
2%
2%
2%
2%
2%
2%
5%
5%
5%
5%
5%
5%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
CLOUDS
cover %
0%
clear
0%
50%
59%
0%
0%
3%
0%
0%
6%
91%
7%
1%
68%
0%
0%
0%
0%
100%
100%
100%
100%
100%
100%
100%
100%
100%
12%
3%
84%
100%
100%
100%
100%
100%
14%
75%
76%
74%
100%
100%
100%
86%
17%
100%
100%
100%
100%
100%
89%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
45%
6%
6%
0%
0%
0%
7%
100%
100%
100%
100%
100%
100%
100%
100%
60%
49%
100%
6%
100%
100%
100%
92%
100%
100%
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
7%
6%
3%
7%
79%
100%
100%
77%
19%
100%
100%
96%
85%
71%
49%
23%
4%
PRESSURE
hPa · trend
1007
10071006100410051003100010011002100010021004100610071009101210151014101510171017
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Warm
Wind
Calm
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:15 AM
SUNSET
08:26 PM
15H 11M OF DAYLIGHT
MOON PHASE
Last Quarter
38% illuminated

Station Location

42.8576, -71.5062
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #01094000·USGS

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