MEDIAN FLOW RATE · 1 YEAR
41cfs
Optimal band: 16–22 cfs
PERIOD HIGH
152cfs
PERIOD LOW
1cfs
RUNNABLE
32%
last 1 year in band
Precipitation History
Precipitation · YTD
DryDrier than normal
2026 to date
7.5in
-33% vs normal
7.47 in of precipitation so far this year, 33% below the 30-year normal of 11.15 in for this point in the season.
YTD Total
7.5in
This year so far
Normal to Date
11.2in
30-yr average
Typical Range
8.3–14.4in
10th–90th pct YTD
Departure
-33%
vs 30-yr normal
By Month
This year
Typical range
Normal
Jan: 0.60" · normal 0.79" (0.2–1.3)
Feb: 0.26" · normal 0.82" (0.3–1.5)
Mar: 1.31" · normal 1.72" (0.9–2.7)
Apr: 0.96" · normal 2.63" (1.1–4.1)
May: 3.56" · normal 3.24" (1.8–5.8)
Jun: 0.77" (so far)· normal 2.10" (0.6–3.8)
Jul: normal 1.72" (0.6–2.7)
Aug: normal 1.68" (0.6–3.0)
Sep: normal 1.49" (0.3–2.6)
Oct: normal 1.59" (0.6–2.6)
Nov: normal 1.09" (0.5–2.1)
Dec: normal 0.75" (0.2–1.2)
Baseline 1991–2020 · Source: Open-Meteo12:44 AM
Your History · Boulder Creek At 109 St Near Erie, Co
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Weather Conditions
WEATHER CONDITIONS
TODAY
73°
59°
FRI
90°
53°
SAT
96°
61°
SUN
99°
64°
MON
93°
65°
TUE
94°
60°
WED
95°
67°
FISH INDEX
Temperature
Ideal
Wind
Strong
Pressure
Falling — Active
Moon Phase
Average
DAYLIGHT
SUNRISE
05:32 AM
SUNSET
08:33 PM
15H 1M OF DAYLIGHT18H 23M REMAINING
MOON PHASE
Waxing Gibbous
83% illuminated
Station Location
40.0598, -105.0979Loading map…
DATA · CO DWR · NOAA · NWSUPDATED 2026-06-26 02:10 UTC
Site #BOC109CO·CO DWR
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