Sacramento Drainage
Valley floor plus the Cascade and Modoc uplands.
Climate divisions are broad reporting areas. Golden State Weather's eighteen terrain regions nest inside them imperfectly but usefully: the division supplies the statewide frame, while the region explains which range, gap, basin or coastline makes one station differ from the next.
Shasta CascadeTwo active volcanoes big enough to make their own weather.MOUNTAINS1 PLACESModoc Plateau & NortheastCalifornia's coldest ground — high desert with a continental winter.BEYOND THE CREST2 PLACESSacramento ValleyHot, dry summers; and the fog that used to define its winters.CENTRAL VALLEY3 PLACESSacramento–San Joaquin DeltaThe only sea-level break in the Coast Ranges, and California's air conditioner.CENTRAL VALLEY1 PLACES
California map highlighting Sacramento Drainage.
4 terrain regions, 7 stations. Atlas regions assigned to CA-2.
The atlas station sample
PRO · NOT AN AREAL AVERAGEThese figures summarize the named NOAA stations attached to this site's places inside the division. They are useful for comparing its internal spread, but they are not NCEI's official gridded or area-weighted divisional series. Mountains and cities are intentionally over-represented because this is a terrain atlas.
7Atlas stations
11.7–42.6″Annual precipitation
68.0–83.5°FJuly mean
25–4,370ftStation elevation
| Place | Region | Elev ft | Jan mean | Jul mean | Annual precip | Snow | Nov–Apr share |
|---|---|---|---|---|---|---|---|
| Alturas | Modoc Plateau & Northeast | 4,370 | 32.7° | 68.0° | 11.7″ | — | 66% |
| Mount Shasta City | Shasta Cascade | 3,606 | 35.8° | 68.1° | 42.6″ | 89.3″ | 84% |
| Redding | Sacramento Valley | 495 | 47.5° | 83.5° | 33.5″ | 2.6″ | 85% |
| Susanville | Modoc Plateau & Northeast | 4,180 | 32.5° | 70.5° | 13.0″ | — | 79% |
| Chico | Sacramento Valley | 190 | 46.2° | 78.1° | 27.4″ | — | 85% |
| Sacramento | Sacramento Valley | 25 | 47.6° | 75.9° | 18.1″ | — | 89% |
| Antioch | Sacramento–San Joaquin Delta | 46 | 48.0° | 76.0° | 12.6″ | — | 92% |