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SunnyDays

ERA5 almanac comparison — 8 years of real data

Lake Tahoe vs Scottsdale Desert Ridge: weather in January

Scottsdale Desert Ridge edges out Lake Tahoe for sun in January: 13% clear historically versus 0% (8-year ERA5 average, a 13-point gap). Lake Tahoe also sees measurably more rain than Scottsdale Desert Ridge this month (28% vs 12% of days). Both are viable — Scottsdale Desert Ridge is the safer bet.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific January. For the actual forecast right now, each destination links to its live page below.

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

Scottsdale Desert Ridge

AZ

Clear days, January
13%
Sample size
n=248 days
Avg high
65°F
Early January (1st–15th)
11%
Late January (16th–end)
14%
Rain frequency
12% of days

Frequently asked

Is Lake Tahoe or Scottsdale Desert Ridge warmer in January?

Scottsdale Desert Ridge runs warmer by day in January. Lake Tahoe averages highs of 39°F (highs n=248 days); Scottsdale Desert Ridge averages highs of 65°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Lake Tahoe or Scottsdale Desert Ridge in January?

Lake Tahoe is measurably wetter than Scottsdale Desert Ridge. Days with measurable rain: Lake Tahoe 28%, Scottsdale Desert Ridge 12% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in January, Lake Tahoe or Scottsdale Desert Ridge?

Scottsdale Desert Ridge edges out Lake Tahoe for sun in January: 13% clear historically versus 0% (8-year ERA5 average, a 13-point gap). Lake Tahoe also sees measurably more rain than Scottsdale Desert Ridge this month (28% vs 12% of days). Both are viable — Scottsdale Desert Ridge is the safer bet.

Compare Lake Tahoe vs Scottsdale Desert Ridge 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.