California Winter Forecast 2026–27: Snow, Cold & First Snow

NOAA's Climate Prediction Center outlook (issued August 20, 2026) puts California at milder than normal for temperature and wetter than normal for precipitation over December–February, with El Niño driving the pattern, read off CPC's official map at the state's three reference cities. CPC draws its probability bands by region rather than issuing a call for each state, so where a state's cities straddle two bands we show equal chances — the official maps are at cpc.ncep.noaa.gov. This is a rain, not snow, outlook for your area — measurable snow is rare enough here that a seasonal tilt says little about it. Seasonal outlooks never forecast snowfall totals, and Los Angeles's 1991–2020 normal of 0 in remains the best single planning number.

Los Angeles does not have a meaningful first-snow date — measurable snow is rare enough that most winters record none. What snow California does get falls in Sierra Nevada — Tahoe, Mammoth & Donner Pass (400+ in).

December is the coldest month in Los Angeles, with a normal January high of 68°F and low of 49°F. The all-time state record low is -45°F at Boca in 1937.

Los Angeles averages 0 in of snow per season (NOAA 1991–2020 normals), with no month averaging measurable snow. Statewide totals vary enormously: Sacramento ~0 in, Fresno ~0 in, South Lake Tahoe ~120 in. The heaviest totals fall in California's snow belt (Sierra Nevada): Tahoe, Mammoth & Donner Pass (400+ in).

The Farmers' Almanac and Old Farmer's Almanac publish winter forecasts from undisclosed formulas and have never shown skill beyond chance in independent checks. NOAA's Climate Prediction Center publishes probabilities with stated skill and updates monthly. Even NOAA's outlook is only a tilt, so the ranking is: NOAA's tilt first, California's 30-year normals second, and the almanacs for entertainment.

El Niño conditions are present and strengthening. In its August 13, 2026 ENSO Diagnostic Discussion, CPC gave a greater than 90% chance of a very strong event during fall and winter 2026–27, and a 69% chance that the October–December season sets a record (+2.5°C or more, 3-month RONI) for any El Niño since 1950. CPC is explicit that impacts consistent with El Niño become more likely with an event this large, but are not guaranteed. For California, CPC's map puts that at milder than normal for temperature and wetter than normal for precipitation — taken from CPC's official Dec–Feb probability map at each state's three reference cities, since CPC publishes probabilities by region rather than a call per state. Coastal California is the headline — CPC raised above-normal precipitation odds above 50% for DJF through FMA, citing the wet Februaries of 1998 and 2024 in similar east-Pacific El Niños; California leans milder as well. Oregon and Washington are favored milder than normal with equal chances on precipitation (the usual El Niño dry tilt was deliberately left off the coast). Alaska leans milder, with the strongest warm confidence in the outlook over the southeast panhandle, and reads as equal chances on precipitation at our three reference cities even though the discussion describes a drier mainland pattern. Hawaii is equal chances on both.

California rates 1 of 5 (low) on our freezing-rain scale. California rarely sees damaging freezing rain. Where ice is a problem it is black ice on roads after a thaw-refreeze, not accumulation on lines and trees.

Anchor it to the first frost: California's typical first frost is December 1, and a hard freeze (28°F) usually follows within about two weeks — around December 15. Blow out sprinklers and disconnect hoses before the hard freeze, service the furnace by then, and have winter tires on before the first cold snap.