Dorris, CA 96023 Frost Dates
Dorris, CA: when does the frost end?
Typically, the last spring freeze lands around 06/05, roughly 281 days out. Fall's first freeze usually shows up around 09/20, roughly 107 days after the last spring frost.
Zone 6b (-5 to 0°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Dorris, not a forecast for this year.
Stretching the season past the first frost
With roughly 3 weeks until Dorris's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 06/05 isn't a guarantee
06/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/22 and only about 1 year in 10 sees frost after that.
Dorris against the rest of the dataset
At roughly 107 frost-free days, Dorris places 39,564 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,507 of 2,555.
Learn more
Before leaning on 96023's figures: the frost range explains how to read the range around Dorris's dates instead of trusting one, while local microclimates explains what one yard in Dorris can differ from the 96023 normal.