Cody, WY

The model estimates whether ice has formed. Ice quality and bonding are not observable from weather data and are not modelled. How the model works.

92 routes across 66 areas. 20 of them are listed but withheld from modelling until the position is confirmed.

Cold so far

0 freezing degree-days since 1 October

No day has averaged below freezing yet. 13 of the last 15 seasons had banked some cold by this date.

Each day that averages below 0 °C adds how far below: a day averaging −5 °C adds 5. Warm days are not subtracted, so a thaw that strips ice does not show here. Modelled at the climbs' typical elevation, not measured on them. It is not a prediction: early cold on its own has not predicted when ice arrives in the seasons this project has records for. Every season is measured over the same window, 1–25 October.

Access is yours to check

This site says nothing about whether you may reach or climb these routes. That is decided by whoever manages the land — a park, a forest, a city, a tribe, a private owner — and by permits, seasonal and wildlife closures and local law, all of which change. A route listed here is not a route you are allowed to climb, and a route with no restriction noted here may still be closed. Check with the land manager before you go.

Ice festival

Wyoming Ice Festival — New Year, late December into early January

The people who actually know this venue, once a year in one place.

Guidebook

Winter Dance: Select Ice Climbs in Southern MT and Northern WY by Joe Josephson

Route positions are in the guidebook and not on this site. The author walked the terrain and verified the lines; that work is theirs to sell.

The author’s site