CLIMATE DIVISION CA-6

South Coast Drainage

NOAA California climate division CA-6 — the whole measured record, 1895 to 2025.

DIVISION CA-6 CALIFORNIA

The record in brief

GENERATED FROM THE DIVISIONAL TABLE

South Coast Drainage is NOAA climate division CA-6. Southern California's coastal plain and the ranges behind it. The fastest-warming division in the state.

Warming, 1895–2025: +3.24°F per century (95% interval ±0.57), statistically significant.
Warmest year: 2014, at 63.8°F.
Water-year normal, 1991–2020: 17.3 inches.
Wettest water year: 1941, 38.0 inches. Driest: 2007, 5.8 inches.
Precipitation trend: -1.0 inches per century, not distinguishable from zero.
ENSO correlation: r = 0.419 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.