Shasta Lake, CA 96099 Frost Dates
Shasta Lake, CA: when does the frost end?
Typically, the last spring freeze lands around 03/19, roughly 203 days out. Fall's first freeze usually shows up around 11/22, roughly 250 days after the last spring frost.
Shasta Lake sits in USDA Zone 9b (25 to 30°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
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.
How much risk comes with planting early here
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 7,512 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,092 of 2,555.
Learn more
Before leaning on 96099's figures: local microclimates explains what one yard in Shasta Lake can differ from the 96099 normal, while zone vs. frost date explains why Zone 9b and Shasta Lake's frost date answer different questions.