Shasta Lake, CA 96033 Frost Dates
Shasta Lake, CA: when does the frost end?
The last spring frost here typically falls around 03/19, about 203 days from today. Fall's first freeze usually shows up around 11/22, roughly 250 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Shasta Lake in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 12 weeks until Shasta Lake's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Shasta Lake's last frost
03/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/11 and only about 1 year in 10 sees frost after that.
Shasta Lake against the rest of the dataset
Shasta Lake's growing season runs about 250 days, ranking 7,511 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,091 of 2,555.
Learn more
Before leaning on 96033's figures: the frost range explains how to read the range around Shasta Lake's dates instead of trusting one, while local microclimates explains what one yard in Shasta Lake can differ from the 96033 normal.