Boulder City, NV 92364 Frost Dates
92364, near Boulder City, NV: the frost window
Around 03/17 is the usual last spring frost, about 201 days away. Fall's first freeze usually shows up around 11/20, roughly 245 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Boulder City in Zone 8b (15 to 20°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
Boulder City's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Boulder City's last frost
03/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/23 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.
Boulder City against the rest of the dataset
At roughly 245 frost-free days, Boulder City places 7,999 of 40,283 ZIP codes in this dataset. Within NV, it ranks 105 of 222.
Learn more
Two guides worth reading on 92364: the frost range, on how to read the range around Boulder City's dates instead of trusting one, and local microclimates, on what one yard in Boulder City can differ from the 92364 normal.