National City, CA 92136 Frost Dates
92136, near National City, CA: the frost window
The NOAA station nearest to 92136 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 10b (35 to 40°F average annual minimum).
National City against the rest of the dataset
National City's growing season runs about 365 days, ranking 790 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 338 of 2,555.
Learn more
Two guides worth reading on 92136: the methodology, on exactly which NOAA and USDA figures feed 92136's numbers, and zone vs. frost date, on why Zone 10b and National City's frost date answer different questions.