CO DWR · ROBTUNCO

ROBERTS TUNNEL RIVER

CO DWR · ROBTUNCOLIVE

Roberts Tunnel At East Portal Near Grant

PARK COUNTY, CO39.4616°N, -105.6767°W

AIR TEMP

74°F

WIND

17mph SSW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

—cfs

No flow data available

Precipitation History

Precipitation · YTD

Dry

Drier than normal

2026 to date

8.7in

-25% vs normal

8.73 in of precipitation so far this year, 25% below the 30-year normal of 11.6 in for this point in the season.

YTD Total

8.7in

This year so far

Normal to Date

11.6in

30-yr average

Typical Range

9.3–13.9in

10th–90th pct YTD

Departure

-25%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.76" · normal 0.99" (0.4–1.6)

Jan

Feb: 0.89" · normal 1.14" (0.6–1.7)

Feb

Mar: 1.07" · normal 1.71" (0.9–2.4)

Mar

Apr: 1.50" · normal 2.65" (1.4–3.9)

Apr

May: 3.68" · normal 2.59" (1.4–4.2)

May

Jun: 0.78" · normal 2.04" (0.8–3.5)

Jun

Jul: 0.06" (so far)· normal 3.59" (2.0–5.0)

Jul

Aug: normal 3.41" (1.8–5.3)

Aug

Sep: normal 1.93" (0.9–3.2)

Sep

Oct: normal 1.49" (0.7–2.2)

Oct

Nov: normal 1.10" (0.6–1.8)

Nov

Dec: normal 0.98" (0.4–1.7)

Dec

Baseline 1991–2020 · Source: Open-Meteo12:12 AM

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Station Location

39.4616, -105.6767

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