Waterlands
Left Hand Diversion River
CO DWR · LEFTHDCO
LEFT HAND DIVERSION RIVER
CO DWR · LEFTHDCOLIVE

Left Hand Diversion Near Ward

BOULDER COUNTY, CO40.0914°N, -105.5085°W Updated 1 d ago
FLOW RATE
28cfs
AIR TEMP
47°F
WIND
7mph W
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
28cfs
Optimal band: 35–47 cfs
PERIOD HIGH
51cfs
PERIOD LOW
28cfs
RUNNABLE
83%
last 30 day in band
Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

13.7in

+19% vs normal

13.66 in of precipitation so far this year, 19% above the 30-year normal of 11.48 in for this point in the season.

YTD Total

13.7in

This year so far

Normal to Date

11.5in

30-yr average

Typical Range

0.0–20.4in

10th–90th pct YTD

Departure

+19%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 1.59" · normal 0.91" (0.0–2.1)
Jan
Feb: 1.65" · normal 0.87" (0.0–2.0)
Feb
Mar: 1.86" · normal 1.62" (0.0–3.2)
Mar
Apr: 2.11" · normal 2.30" (0.0–4.6)
Apr
May: 4.73" · normal 3.05" (0.0–6.1)
May
Jun: 1.70" · normal 2.67" (0.0–5.9)
Jun
Jul: 0.03" (so far)· normal 3.04" (0.0–6.6)
Jul
Aug: normal 2.94" (0.0–5.7)
Aug
Sep: normal 1.74" (0.0–3.7)
Sep
Oct: normal 1.27" (0.0–2.8)
Oct
Nov: normal 0.97" (0.0–2.1)
Nov
Dec: normal 0.71" (0.0–1.5)
Dec
Baseline 1991–2020 · Source: Open-Meteo09:24 AM
Your History · Left Hand Diversion Near Ward

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Weather Conditions
WEATHER CONDITIONS
TODAY
71°
44°
THU
72°
49°
FRI
78°
48°
SAT
79°
51°
SUN
78°
52°
MON
76°
53°
TUE
76°
53°
TIME
WED
9
NOW
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
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
TEMP
hourly forecast
58°
mild
58°
61°
63°
66°
68°
70°
71°
68°
69°
67°
66°
63°
59°
57°
55°
54°
52°
51°
51°
51°
49°
50°
55°
60°
62°
64°
66°
68°
70°
71°
71°
71°
72°
70°
69°
67°
63°
61°
59°
58°
54°
53°
52°
51°
49°
48°
54°
63°
66°
68°
70°
73°
75°
77°
78°
78°
76°
74°
73°
67°
61°
59°
60°
59°
58°
55°
53°
52°
52°
51°
56°
65°
68°
71°
74°
77°
77°
78°
79°
73°
72°
72°
69°
65°
60°
59°
56°
54°
54°
53°
53°
52°
52°
52°
58°
67°
71°
72°
74°
75°
76°
78°
78°
78°
77°
73°
67°
60°
54°
53°
54°
55°
55°
55°
WIND
mph · gust · dir
5mph W
G 17 mph
5
G17
W
8
G21
W
9
G22
W
9
G23
WSW
7
G22
WSW
6
G20
SW
3
G19
S
6
G19
ESE
8
G18
ESE
8
G16
SE
8
G12
ESE
2
G8
SE
4
G6
NW
1
G8
SSE
6
WNW
7
WNW
7
G9
W
7
G12
WNW
9
G14
W
9
G14
W
8
G13
W
10
G15
W
9
G17
W
9
G18
W
8
G17
W
8
G19
W
8
G21
W
10
G20
W
9
G21
WNW
11
G23
NW
14
G26
NW
12
G23
WNW
9
G17
WSW
9
G16
NW
6
G14
W
3
G12
W
6
G9
NW
10
G17
W
10
G18
W
10
G15
W
9
G10
W
9
W
9
W
10
W
10
W
10
W
8
G9
W
6
G13
WSW
8
G13
W
7
G15
W
9
G16
W
12
G17
W
13
G20
WNW
14
G19
W
12
G18
W
6
G13
WNW
4
G15
SSE
4
G16
WSW
6
G14
WNW
8
G13
W
8
G9
W
9
WNW
8
WNW
8
WNW
10
WNW
11
G12
W
12
W
12
W
13
G14
W
13
G15
W
10
G22
W
8
G19
W
5
G13
NW
4
G15
NW
5
G15
W
8
G15
W
11
G18
W
11
G21
W
3
G17
WNW
10
G14
ENE
14
ENE
9
ESE
6
SE
7
NE
4
WSW
5
WNW
8
WNW
7
W
7
W
7
W
8
W
8
W
8
W
8
W
6
G7
W
1
G3
NW
4
E
8
E
13
E
14
G15
E
14
E
15
ESE
13
ESE
14
SE
11
SE
11
SE
7
SSE
2
G4
S
3
WNW
5
WNW
6
W
7
W
6
W
5
W
PRECIP
chance %
0%
0%
0%
0%
0%
0%
1%
2%
5%
4%
2%
6%
2%
2%
2%
3%
2%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
6%
6%
6%
6%
6%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
24%
24%
24%
24%
24%
24%
7%
7%
7%
7%
7%
7%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
22%
22%
22%
22%
22%
22%
5%
5%
5%
5%
5%
5%
1%
1%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
8%
100%
100%
100%
100%
91%
100%
49%
100%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
6%
25%
58%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
98%
72%
5%
86%
100%
100%
10%
99%
34%
26%
73%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
12%
6%
6%
0%
5%
59%
100%
100%
100%
57%
89%
47%
100%
100%
100%
100%
100%
100%
100%
100%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
98%
100%
100%
100%
100%
100%
100%
90%
76%
66%
62%
61%
64%
76%
92%
PRESSURE
hPa · trend
725
725726722721727728724723728726724724729727725725730728724
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Cool
Wind
Light
Pressure
Rising — Slow
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:36 AM
SUNSET
08:35 PM
14H 59M OF DAYLIGHT11H 10M REMAINING
MOON PHASE
Full Moon
98% illuminated
PEAK ACTIVITY

Station Location

40.0914, -105.5085
Loading map…
DATA · CO DWR · NOAA · NWSUPDATED 2026-07-01 09:25 UTC
Site #LEFTHDCO·CO DWR

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