VacationSelector
The Outback, with the Tenmile Range in the distance, Keystone
KeystoneThe Outback, with the Tenmile Range in the distance
The Basilica of Notre-Dame de Fourvière, Lyon
LyonThe Basilica of Notre-Dame de Fourvière

Photos: Keystone by Rudi Riet, CC BY-SA 2.0, cropped; Lyon by Dennis G. Jarvis, CC BY-SA 2.0, cropped.

Keystone or Lyon?

Our verdict in twelve categories, each scored against the same fixed benchmark cities, and the climate month by month, so you can choose for your trip.

Choose Keystone for

  • nature and the outdoors
  • families

What lies behind each score is written up on Keystone’s own page.

Choose Lyon for

  • culture and sights
  • food and drink
  • nightlife

What lies behind each score is written up on Lyon’s own page.

Scoreboard

Twelve categories on one fixed scale from 0 to 100. The shaded stretch is the gap between the two.

Beaches & swimming. Keystone 5, Lyon 12: Lyon leads by 7 points.
Food & drink. Keystone 27, Lyon 84: Lyon leads by 57 points.
Culture & sights. Keystone 7, Lyon 77: Lyon leads by 70 points.
Nightlife. Keystone 12, Lyon 58: Lyon leads by 46 points.
Nature & outdoors. Keystone 93, Lyon 64: Keystone leads by 29 points.
Day trips. Keystone 55, Lyon 77: Lyon leads by 22 points.
Good for families. Keystone 66, Lyon 62: Keystone leads by 4 points.
Getting around. Keystone 50, Lyon 77: Lyon leads by 27 points.
Shopping & style. Keystone 22, Lyon 58: Lyon leads by 36 points.
Affordability. Keystone 12, Lyon 42: Lyon leads by 30 points.
Live music & performing arts. Keystone 22, Lyon 68: Lyon leads by 46 points.
Wellness & relaxation. Keystone 32, Lyon 40: Lyon leads by 8 points.
0255075100

What lies behind each score is written up on the two cities’ own pages: Keystone and Lyon.

Your match

Pick a travel style or drag the sliders, and both match scores follow your weighting.

Keystone
34match

Wins on nature and the outdoors and families with your weighting.

Lyon
Best match
60match

Wins on culture and sights and food and drink with your weighting.

What matters to you?

When should you go?

Pick your month. The climate figures are measured averages, not a forecast.

Keystone in July

21 °Cdaytime high
5 °Cnight-time low
39 mmrain in the month
No recordsunshine a day
15 hdaylight a day

Lyon in July

28 °Cdaytime high
17 °Cnight-time low
66 mmrain in the month
9 hsunshine a day
15 hdaylight a day

Daytime high, °C

-10°0°10°20°30°JFMAMJJASOND

Rainfall in the month, mm

0255075100125JFMAMJJASOND
KeystoneLyon

Where the figures come from

Keystone's temperatures are measured 51 km from the centre, at Leadville / Stringtown.

Keystone's station stands 232 m above the city centre, so the centre is likely a little warmer than the figures say.

Keystone has no rain gauge within 25 km of the centre, so its rainfall comes from a gridded climate dataset read at the city rather than from a gauge further away.

Temperature and rainfall are climate normals, averaged over the years shown. Keystone: 2006-2020 (rainfall 1991-2020) normals, Leadville / Stringtown (50.8 km from centre). Lyon: 1991-2020 normals, Lyon / Bron (10.6 km from centre).

Before you go

MeasureKeystoneLyon
Official language-French
CurrencyUS Dollar (USD)Euro (EUR)
SocketsAB120 V, 60 HzCE230 V, 50 Hz
Driving sideRightRight
Time zoneUTC-7, UTC-6 in summerUTC+1, UTC+2 in summer
Emergency number911112
Elevation2,796 m160 m
Main airportDenver International Airport (DEN)116 km from centre231 non-stop destinationsLyon Saint-Exupéry Airport (LYS)20 km from centre141 non-stop destinations
Public holidays this year12 days11 days

By the numbers

MeasureKeystoneLyon
City population1,369519,127
People per km²1310,838
Museums within 10 km043
UNESCO World Heritage sites within 50 km02

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Keystone or Lyon somewhere new.

Browse every destination

Sources

Structured data from Wikidata (CC0). Weather data by Meteostat. Meteorological data provided by NOAA, DWD and others. Rainfall where no rain gauge is within 25 km is from the TerraClimate 1991-2020 climatology (Abatzoglou et al. 2018, Scientific Data), read at the city. Airport data from OurAirports (public domain). Public holidays from Nager.Date (MIT). Exchange rates via Frankfurter, based on European Central Bank reference rates. Non-stop route lists from the "Airlines and destinations" tables on English Wikipedia airport articles, by Wikipedia contributors, reused under CC BY-SA 4.0. Currency from the ISO 4217 register maintained by SIX, cross-checked against country data from GeoNames (CC BY 4.0). Price level from World Bank open data (PPP conversion factor for private consumption and official exchange rate), CC BY 4.0. Time zones from GeoNames (CC BY 4.0); clock offsets computed from the IANA time zone database. Tourism statistics from Eurostat, © European Union, reused under CC BY 4.0. Daylight hours computed from each destination's latitude using the NOAA solar position algorithm.

Category scores are our editorial verdict under rubric v3, each placed against the same fixed benchmark cities; the climate figures are measured. How the scores are set. Snapshot generated 2026-11-02. Daily budgets are estimates from country price levels.