Waterlands
South Platte River
CO DWR · PLAKASCO
SOUTH PLATTE RIVER
CO DWR · PLAKASCOLIVE

South Platte River At Last Chance Diversion Near Kassler

JEFFERSON COUNTY, CO39.4850°N, -105.1041°W
AIR TEMP
59°F
WIND
1mph S
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
cfs
No flow data available
Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

8.6in

-30% vs normal

8.55 in of precipitation so far this year, 30% below the 30-year normal of 12.14 in for this point in the season.

YTD Total

8.6in

This year so far

Normal to Date

12.1in

30-yr average

Typical Range

8.8–15.0in

10th–90th pct YTD

Departure

-30%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 0.98" · normal 0.90" (0.4–1.5)
Jan
Feb: 0.21" · normal 0.96" (0.3–1.7)
Feb
Mar: 1.32" · normal 2.00" (1.2–3.1)
Mar
Apr: 1.44" · normal 3.00" (1.4–4.5)
Apr
May: 4.10" · normal 3.42" (2.0–5.3)
May
Jun: 0.51" (so far)· normal 2.20" (1.0–4.0)
Jun
Jul: normal 2.09" (0.6–3.5)
Jul
Aug: normal 1.84" (0.8–3.2)
Aug
Sep: normal 1.50" (0.5–2.9)
Sep
Oct: normal 1.68" (0.5–3.1)
Oct
Nov: normal 1.21" (0.5–2.2)
Nov
Dec: normal 0.88" (0.3–1.3)
Dec
Baseline 19912020 · Source: Open-Meteo09:52 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
88°
58°
WED
85°
60°
THU
82°
56°
FRI
94°
58°
SAT
97°
60°
SUN
96°
59°
MON
95°
60°
TIME
TUE
11
NOW
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
WED
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
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
TEMP
hourly forecast
76°
mild
76°
80°
83°
86°
88°
88°
88°
87°
84°
80°
75°
75°
72°
70°
68°
62°
63°
63°
61°
60°
63°
65°
67°
71°
74°
79°
82°
85°
77°
79°
75°
73°
66°
66°
63°
63°
63°
63°
60°
58°
56°
57°
56°
58°
62°
69°
72°
73°
76°
80°
82°
81°
79°
74°
75°
75°
72°
70°
64°
62°
62°
62°
60°
60°
59°
59°
58°
58°
63°
71°
79°
86°
90°
93°
92°
94°
93°
90°
82°
88°
78°
74°
69°
69°
69°
67°
65°
63°
63°
63°
61°
60°
64°
72°
80°
84°
88°
91°
94°
95°
97°
97°
97°
95°
91°
85°
79°
76°
73°
70°
68°
65°
63°
61°
WIND
mph · gust · dir
6mph NE
6
NE
7
NNE
7
NE
7
G8
NE
10
G11
NE
12
G13
NNE
12
G14
NE
12
G13
ENE
13
G15
E
7
G12
ENE
7
G13
NNE
9
G10
NNW
11
G18
N
10
G16
N
12
G17
NNE
9
G11
N
5
G6
NNW
2
G5
SSW
4
G5
E
6
NW
3
G4
N
2
ENE
4
G5
ENE
6
G7
NE
8
G9
N
10
G11
NNE
11
G12
NNE
11
G13
NNE
15
G19
N
12
G13
E
13
G17
ENE
13
G14
N
8
G12
ENE
3
G5
NNW
8
G12
NNW
7
G15
NNE
2
G6
ESE
3
G7
SSE
4
G7
NE
3
G7
NE
2
G7
NNE
4
S
2
SW
3
SSW
5
SW
1
G3
S
6
NE
8
ENE
9
NE
8
NE
7
G8
NE
5
G9
SSE
16
SE
12
NE
8
G12
ENE
10
G12
E
7
G12
E
8
NNE
7
NNW
3
SW
7
G8
SW
7
G9
SW
8
G9
SW
9
G10
SW
9
G11
SW
10
G11
SW
10
G12
SW
11
G13
SW
10
G14
SW
8
G15
SW
10
G19
SW
9
G17
SW
10
G15
SW
8
G17
WSW
9
G14
W
7
G16
NW
1
G16
NNE
17
G21
S
5
G7
S
9
G12
SE
18
G26
SSE
12
G25
S
7
G11
SW
8
G9
SW
9
G10
SW
10
G13
SW
11
G14
SW
12
G15
SW
12
G16
SW
11
G16
SW
11
G15
SW
11
G17
SW
10
G18
SW
10
G21
SSW
12
G23
SSW
16
G24
SSW
21
G28
SSW
19
G28
SW
19
G26
SW
20
G25
SW
16
G24
SW
15
G20
WSW
15
G17
WSW
15
G16
WSW
14
G20
WSW
14
G25
WSW
13
G29
WSW
11
G29
WSW
10
G28
SW
9
G25
SW
9
G19
SW
9
G12
SW
9
SW
9
SW
PRECIP
chance %
0%
0%
0%
1%
2%
3%
5%
6%
7%
8%
7%
7%
9%
9%
10%
7%
4%
3%
1%
0%
0%
0%
0%
0%
0%
0%
0%
1%
5%
6%
9%
25%
25%
22%
22%
22%
22%
22%
22%
10%
10%
10%
10%
10%
10%
16%
16%
16%
16%
16%
16%
83%
83%
83%
83%
83%
83%
51%
51%
51%
51%
51%
51%
5%
5%
5%
5%
5%
5%
1%
1%
1%
1%
1%
1%
36%
36%
36%
36%
36%
36%
17%
17%
17%
17%
17%
17%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
2%
clear
2%
10%
24%
1%
100%
100%
84%
19%
12%
0%
1%
100%
74%
75%
100%
100%
100%
68%
18%
57%
48%
79%
29%
21%
75%
100%
100%
100%
100%
79%
43%
100%
100%
52%
100%
100%
68%
100%
100%
72%
12%
11%
0%
75%
100%
100%
100%
16%
11%
7%
100%
21%
0%
6%
7%
100%
100%
88%
67%
5%
100%
100%
12%
88%
100%
0%
0%
0%
0%
0%
0%
0%
0%
94%
100%
100%
100%
100%
100%
0%
85%
14%
0%
0%
0%
0%
0%
0%
6%
100%
49%
100%
10%
7%
11%
58%
100%
70%
49%
12%
8%
8%
6%
5%
4%
3%
2%
1%
0%
0%
0%
0%
0%
0%
PRESSURE
hPa · trend
836
836837838832834832832830831828829827828822824824825821821
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:34 AM
SUNSET
08:31 PM
14H 57M OF DAYLIGHT9H 12M REMAINING
MOON PHASE
First Quarter
59% illuminated

Station Location

39.4850, -105.1041
Loading map…
DATA · CO DWR · NOAA · NWSUPDATED 2026-06-23 11:19 UTC
Site #PLAKASCO·CO DWR

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