ERA5 almanac comparison — 8 years of real data
Bozeman vs Lake Tahoe: weather in January
Essentially a tie in January: Bozeman is 0% clear historically, Lake Tahoe is 0% clear (8-year ERA5 average) — within the noise. Avg high 34°F vs 39°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Bozeman
MT
- Clear days, January
- 0%
- Sample size
- n=248 days
- Avg high
- 34°F
- Early January (1st–15th)
- 0%
- Late January (16th–end)
- 0%
- Rain frequency
- 24% of days
Lake Tahoe
CA
- Clear days, January
- 0%
- Sample size
- n=248 days
- Avg high
- 39°F
- Early January (1st–15th)
- 0%
- Late January (16th–end)
- 0%
- Rain frequency
- 28% of days
Frequently asked
Is Bozeman or Lake Tahoe warmer in January?
Lake Tahoe runs warmer by day in January. Bozeman averages highs of 34°F (highs n=248 days); Lake Tahoe averages highs of 39°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Bozeman or Lake Tahoe in January?
Days with measurable rain: Bozeman 24%, Lake Tahoe 28% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in January, Bozeman or Lake Tahoe?
Essentially a tie in January: Bozeman is 0% clear historically, Lake Tahoe is 0% clear (8-year ERA5 average) — within the noise. Avg high 34°F vs 39°F. Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Bozeman vs Lake Tahoe in another month
All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.