Waterlands
Leyner Cottonwood Ditch River
CO DWR · LCWDITCO
LEYNER COTTONWOOD DITCH RIVER
CO DWR · LCWDITCOLIVE

Leyner Cottonwood Ditch

BOULDER COUNTY, CO40.0217°N, -105.1661°W Updated 1 d ago
FLOW RATE
0cfs
AIR TEMP
57°F
WIND
6mph W
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
0cfs
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

8.3in

-17% vs normal

8.25 in of precipitation so far this year, 17% below the 30-year normal of 9.91 in for this point in the season.

YTD Total

8.3in

This year so far

Normal to Date

9.9in

30-yr average

Typical Range

0.0–16.6in

10th–90th pct YTD

Departure

-17%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 0.60" · normal 0.67" (0.0–1.4)
Jan
Feb: 0.26" · normal 0.65" (0.0–1.5)
Feb
Mar: 1.31" · normal 1.41" (0.0–2.7)
Mar
Apr: 0.96" · normal 2.18" (0.0–4.4)
Apr
May: 4.21" · normal 2.80" (0.0–5.4)
May
Jun: 0.87" · normal 2.16" (0.0–4.9)
Jun
Jul: 0.03" (so far)· normal 2.03" (0.0–4.1)
Jul
Aug: normal 2.08" (0.0–3.9)
Aug
Sep: normal 1.33" (0.0–3.1)
Sep
Oct: normal 1.15" (0.0–2.5)
Oct
Nov: normal 0.86" (0.0–2.0)
Nov
Dec: normal 0.57" (0.0–1.3)
Dec
Baseline 1991–2020 · Source: Open-Meteo09:21 AM
Your History · Leyner Cottonwood Ditch

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Weather Conditions
WEATHER CONDITIONS
TODAY
90°
56°
THU
92°
61°
FRI
96°
64°
SAT
96°
65°
SUN
97°
65°
MON
97°
64°
TUE
97°
64°
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
75°
mild
75°
80°
83°
86°
88°
89°
90°
90°
90°
88°
86°
81°
77°
74°
71°
68°
66°
65°
64°
63°
62°
61°
61°
67°
70°
75°
81°
86°
89°
91°
92°
92°
92°
89°
89°
84°
78°
76°
73°
73°
69°
67°
67°
66°
64°
64°
70°
78°
84°
88°
90°
92°
94°
95°
96°
95°
93°
94°
94°
86°
80°
80°
78°
78°
74°
72°
70°
69°
67°
65°
72°
79°
84°
88°
90°
92°
95°
96°
95°
94°
94°
93°
91°
84°
81°
76°
70°
68°
66°
69°
68°
67°
66°
65°
71°
75°
80°
84°
89°
93°
95°
96°
97°
97°
83°
85°
81°
78°
75°
73°
72°
71°
69°
67°
WIND
mph · gust · dir
3mph ESE
G 9 mph
3
G9
ESE
5
G13
ESE
8
G22
SE
9
G23
SE
10
G24
ESE
11
G22
ENE
12
G20
ENE
14
G21
ENE
16
G18
NE
17
G21
NE
13
G21
NE
7
G14
N
13
G20
E
12
G21
E
7
G12
NW
7
G11
NW
7
G11
NW
5
G7
N
4
G6
NW
2
G4
W
3
ENE
6
G8
NE
5
G7
NW
5
G7
N
3
NNE
3
E
4
G8
E
5
G17
E
7
G20
ESE
11
G24
E
7
G15
E
12
G24
E
17
G21
ESE
16
G18
E
4
NE
4
G8
ESE
5
G8
W
7
G8
W
6
G8
W
8
G9
W
7
G11
WSW
7
G9
WSW
7
G8
W
7
G9
W
6
G9
WSW
8
G9
WSW
6
G9
WSW
4
G7
SW
4
G9
SSW
5
G10
S
7
G11
SSE
8
G13
SE
12
G17
SE
18
SSE
16
SSE
13
G15
S
7
G11
SSE
5
G11
SE
9
G12
ESE
7
E
10
NW
10
NW
9
NW
10
WNW
6
G8
W
7
G9
W
8
G11
W
9
G12
W
7
G13
W
5
G9
WSW
6
G8
SW
2
G9
SW
4
G9
ENE
7
G11
E
10
G14
E
11
G16
E
14
G19
E
16
G18
ESE
15
ESE
10
E
12
G14
NNE
9
NE
12
ENE
8
G9
SE
6
SSW
7
G8
W
4
G8
WNW
3
G5
WNW
2
G5
SW
7
WSW
7
WSW
7
WSW
6
G7
WSW
5
G6
WNW
4
G6
NW
2
NE
3
ESE
6
ESE
6
G7
SE
10
SE
10
G11
SE
9
G10
SE
7
G8
SE
7
SE
32
SSE
26
S
26
S
23
S
18
SSE
12
G15
S
7
G12
SW
9
W
8
WNW
5
NW
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
1%
3%
4%
2%
2%
4%
3%
4%
3%
3%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
2%
2%
2%
2%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
2%
2%
2%
2%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
11%
11%
11%
11%
11%
11%
5%
5%
5%
5%
5%
5%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
18%
18%
18%
18%
18%
18%
5%
5%
5%
5%
5%
5%
1%
1%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
100%
63%
100%
100%
100%
100%
100%
39%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
0%
0%
0%
0%
12%
100%
21%
48%
28%
100%
100%
100%
78%
58%
99%
8%
9%
100%
100%
56%
7%
7%
0%
0%
11%
100%
74%
10%
63%
32%
10%
100%
17%
35%
44%
100%
100%
100%
100%
100%
100%
27%
5%
0%
0%
0%
6%
6%
7%
58%
100%
100%
6%
100%
100%
100%
100%
100%
100%
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
6%
6%
23%
18%
10%
10%
25%
49%
69%
83%
93%
PRESSURE
hPa · trend
843
843842839838842844840841844841841842844841843842844843844
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Light
Pressure
Rising — Slow
Moon Phase
Peak Activity
DAYLIGHT
SUNRISE
05:35 AM
SUNSET
08:33 PM
14H 58M OF DAYLIGHT11H 12M REMAINING
MOON PHASE
Full Moon
98% illuminated
PEAK ACTIVITY

Station Location

40.0217, -105.1661
Loading map…
DATA · CO DWR · NOAA · NWSUPDATED 2026-07-01 09:21 UTC
Site #LCWDITCO·CO DWR

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