Waterlands
Swadley-Longan Ditch River
CO DWR · SWLDITCO
SWADLEY-LONGAN DITCH RIVER
CO DWR · SWLDITCOLIVE

Swadley-Longan Ditch

ARVADA, CO39.8222°N, -105.1239°W Updated 2 d ago
FLOW RATE
1cfs
AIR TEMP
76°F
WIND
3mph W
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 7 DAY
1cfs
Optimal band: 1–1 cfs
PERIOD HIGH
1cfs
PERIOD LOW
1cfs
RUNNABLE
100%
last 7 day in band
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

9.2in

-24% vs normal

9.19 in of precipitation so far this year, 24% below the 30-year normal of 12.11 in for this point in the season.

YTD Total

9.2in

This year so far

Normal to Date

12.1in

30-yr average

Typical Range

9.3–15.7in

10th–90th pct YTD

Departure

-24%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 0.97" · normal 0.87" (0.3–1.4)
Jan
Feb: 0.41" · normal 0.92" (0.3–1.6)
Feb
Mar: 1.14" · normal 1.89" (1.0–2.7)
Mar
Apr: 1.99" · normal 2.76" (1.2–4.1)
Apr
May: 3.40" · normal 3.20" (1.8–5.5)
May
Jun: 1.09" · normal 2.06" (0.7–3.1)
Jun
Jul: 0.19" (so far)· normal 1.66" (0.6–2.9)
Jul
Aug: normal 1.59" (0.5–2.8)
Aug
Sep: normal 1.41" (0.3–2.2)
Sep
Oct: normal 1.61" (0.5–2.8)
Oct
Nov: normal 1.20" (0.5–2.1)
Nov
Dec: normal 0.82" (0.3–1.3)
Dec
Baseline 1991–2020 · Source: Open-Meteo01:30 AM
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Weather Conditions
WEATHER CONDITIONS
TODAY
95°
61°
WED
94°
66°
THU
91°
62°
FRI
94°
69°
SAT
96°
71°
SUN
99°
74°
MON
98°
74°
TIME
WED
4
NOW
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
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
TEMP
hourly forecast
68°
mild
68°
68°
66°
69°
75°
81°
87°
91°
89°
94°
94°
88°
90°
84°
83°
85°
81°
77°
74°
72°
70°
68°
67°
66°
64°
63°
62°
64°
68°
73°
78°
83°
88°
91°
89°
76°
80°
79°
78°
78°
78°
78°
77°
75°
74°
72°
71°
69°
70°
69°
69°
72°
77°
80°
81°
84°
90°
92°
92°
94°
92°
93°
85°
82°
81°
78°
78°
77°
76°
75°
74°
73°
72°
71°
71°
73°
78°
82°
86°
89°
91°
94°
96°
96°
96°
96°
95°
94°
91°
87°
85°
83°
82°
80°
78°
77°
76°
75°
74°
76°
81°
86°
90°
93°
95°
97°
98°
99°
98°
97°
96°
94°
91°
WIND
mph · gust · dir
11mph NW
G 17 mph
11
G17
NW
6
G11
NW
3
G5
W
1
G2
SE
4
G5
SE
6
G9
SSE
2
G8
E
10
G14
NE
5
G10
NNE
8
G16
ENE
16
G21
NW
17
G23
SSE
12
G18
WNW
12
G17
SW
10
G13
SW
5
G7
NW
8
G11
NNE
6
G13
NNW
3
G4
S
3
G13
E
1
G12
NW
5
G6
W
5
G8
WNW
9
G19
NNE
7
G11
NNW
3
E
3
G12
N
2
G4
NW
2
G6
S
3
SSE
2
G3
SE
3
G7
E
4
G12
NE
11
G21
NE
12
G18
NNE
11
G21
ESE
9
G14
SSW
9
ESE
6
G14
ESE
4
G6
SE
4
G5
SSE
7
G11
SE
6
G14
SSW
5
G15
SW
4
G6
WNW
6
G13
NNW
5
G13
NNW
2
G8
NW
4
G6
SW
4
G7
SW
5
G10
WSW
5
G7
WSW
2
G4
NW
6
NNE
6
NNE
7
NE
7
ENE
5
G7
S
7
SSW
4
G8
SW
5
G9
SW
9
G13
SSW
14
G16
NNE
12
G15
NNE
8
G10
NE
5
ENE
4
ENE
3
G12
SE
4
G16
SSW
4
G9
SW
3
G5
W
3
NW
3
NNW
2
G3
W
5
G7
WSW
4
G5
WSW
2
G3
SSW
2
E
1
G3
NNE
5
NE
7
ENE
6
G8
ENE
6
G10
NE
7
G10
NE
9
G10
NE
10
ENE
10
G11
E
12
E
12
G14
ESE
10
G21
ESE
7
G23
SE
3
G16
SW
3
NW
3
NW
3
WNW
4
G5
W
4
G5
W
4
W
4
WSW
4
G6
WSW
4
G6
WSW
3
G5
WSW
1
SW
1
G5
E
3
G7
E
4
G8
ENE
5
G9
NE
6
G10
NE
8
G10
ENE
11
ENE
13
E
13
E
12
G16
E
PRECIP
chance %
3%
3%
0%
1%
0%
0%
0%
0%
1%
2%
6%
8%
11%
24%
14%
18%
10%
9%
5%
5%
3%
3%
2%
2%
2%
1%
1%
1%
0%
0%
1%
1%
1%
1%
49%
49%
49%
49%
49%
49%
28%
28%
28%
28%
28%
28%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
15%
15%
15%
15%
15%
15%
6%
6%
6%
6%
6%
6%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
0%
0%
CLOUDS
cover %
42%
partly
42%
100%
100%
100%
73%
22%
92%
3%
100%
100%
85%
37%
100%
100%
83%
12%
51%
100%
100%
100%
100%
98%
47%
100%
100%
100%
100%
100%
63%
0%
0%
100%
39%
0%
100%
100%
77%
88%
100%
7%
5%
100%
21%
100%
82%
100%
6%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
10%
100%
11%
100%
100%
13%
100%
11%
11%
100%
98%
0%
0%
0%
6%
0%
0%
0%
6%
5%
0%
6%
6%
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%
PRESSURE
hPa · trend
838
838841842838837837837835834834834839837838837840840839837
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Warm
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:39 AM
SUNSET
08:31 PM
14H 52M OF DAYLIGHT
MOON PHASE
Last Quarter
42% illuminated

Station Location

39.8222, -105.1239
Loading map…
DATA · CO DWR · NOAA · NWSUPDATED 2026-07-06 00:00 UTC
Site #SWLDITCO·CO DWR

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