Louisa, VA 23170 Frost Dates
Louisa, VA: when does the frost end?
The last spring frost here typically falls around 04/26, about 241 days from today. Fall's first freeze usually shows up around 10/20, roughly 175 days after the last spring frost.
Louisa sits in USDA Zone 7a (0 to 5°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 8 weeks until Louisa'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
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/13 and only about 1 year in 10 sees frost after that.
Louisa against the rest of the dataset
Louisa's growing season runs about 175 days, ranking 26,969 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 1,071 of 1,178.
Learn more
Before leaning on 23170's figures: the frost range explains how to read the range around Louisa's dates instead of trusting one, while local microclimates explains what one yard in Louisa can differ from the 23170 normal.