Dillon Reservoir vs Grand Lake
Grand Lake is the warmer swim right now at about 14°C. They are roughly 73 km apart in United States.
Dillon Reservoir
Colorado
cool · modelled estimate
- October average
- 11.8°C
- Warmest month
- August · 15.0°C
- Coldest month
- 2.0°C
- Swim season
- no month averages above 18°C — a wetsuit lake year-round
Dillon Reservoir in Colorado, United States stays cold all year; expect a wetsuit or a very quick dip, and freezes or near-freezes in winter.
Grand Lake
Colorado
cool · modelled estimate
- October average
- 14.0°C
- Warmest month
- August · 18.0°C
- Coldest month
- 2.0°C
- Swim season
- August–August
Grand Lake in Colorado, United States stays cool even at its August peak — a short-swim lake, and freezes or near-freezes in winter.
Month by month
| Lake | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dillon Reservoir | 2.9°C | 2.0°C | 2.9°C | 5.3°C | 8.5°C | 11.8°C | 14.1°C | 15.0°C | 14.1°C | 11.8°C | 8.5°C | 5.3°C |
| Grand Lake | 3.1°C | 2.0°C | 3.1°C | 6.0°C | 10.0°C | 14.0°C | 16.9°C | 18.0°C | 16.9°C | 14.0°C | 10.0°C | 6.0°C |
Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.
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