CLIMATE DIVISION CA-3

Northeast Interior Basins

NOAA California climate division CA-3 — the whole measured record, 1895 to 2025.

DIVISION CA-3 CALIFORNIA

The record in brief

GENERATED FROM THE DIVISIONAL TABLE

Northeast Interior Basins is NOAA climate division CA-3. Lassen, Alpine and Mono — the Great Basin side of the state, east of the Sierra and Cascade crests and squarely in their rain shadow.

Warming, 1895–2025: +2.12°F per century (95% interval ±0.60), statistically significant.
Warmest year: 2014, at 48.6°F.
Water-year normal, 1991–2020: 20.1 inches.
Wettest water year: 2017, 38.1 inches. Driest: 1924, 8.3 inches.
Precipitation trend: -0.9 inches per century, not distinguishable from zero.
ENSO correlation: r = 0.053 between the DJF Oceanic Niño Index and water-year precipitation, over 76 winters.

Temperature

ONE STRIPE PER YEAR, AND THE SERIES BENEATH IT

Precipitation

WATER YEARS, AS A PERCENT OF NORMAL

This division against the state

WHERE IT SITS

All seven divisions are side by side here. For the climate of individual places inside this division — named stations, with their elevations and distances — see the same division on Golden State Weather.