CLIMATE DIVISION CA-5
DIVISION
CA-5
CALIFORNIA
San Joaquin Drainage
NOAA California climate division CA-5 — the whole measured record, 1895 to 2025.
The record in brief
GENERATED FROM THE DIVISIONAL TABLESan Joaquin Drainage is NOAA climate division CA-5. The San Joaquin Valley and the central and southern Sierra above it — the drier of the two great valley divisions.
- Warming, 1895–2025: +2.09°F per century (95% interval ±0.60), statistically significant.
- Warmest year: 2014, at 60.9°F.
- Water-year normal, 1991–2020: 19.9 inches.
- Wettest water year: 1983, 38.0 inches. Driest: 1924, 8.7 inches.
- Precipitation trend: -0.3 inches per century, not distinguishable from zero.
- ENSO correlation: r = 0.246 between the DJF Oceanic Niño Index and water-year precipitation, over 76 winters.
Temperature
ONE STRIPE PER YEAR, AND THE SERIES BENEATH ITPrecipitation
WATER YEARS, AS A PERCENT OF NORMALThis division against the state
WHERE IT SITSAll 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.