Burbank, CA 91501 Frost Dates
91501, near Burbank, CA: the frost window
Typically, the last spring freeze lands around 01/02, roughly 127 days out. Fall's first freeze usually shows up around 12/26, roughly 364 days after the last spring frost.
Burbank sits in USDA Zone 10a (30 to 35°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Burbank's growing season runs out in roughly 17 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 01/02 isn't a guarantee
01/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/11 and only about 1 year in 10 sees frost after that.
Burbank against the rest of the dataset
At roughly 364 frost-free days, Burbank places 2,026 of 40,283 ZIP codes in this dataset. Within CA, it ranks 917 of 2,555.
Learn more
Two guides worth reading on 91501: the frost range, on how to read the range around Burbank's dates instead of trusting one, and local microclimates, on what one yard in Burbank can differ from the 91501 normal.