San Buenaventura (Ventura), CA 93004 Frost Dates
San Buenaventura (Ventura), CA: when does the frost end?
The NOAA station nearest to 93004 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 10a (30 to 35°F average annual minimum).
San Buenaventura (Ventura) against the rest of the dataset
About 365 days separate San Buenaventura (Ventura)'s last and first frost, putting it 467 of 40,283 ZIP codes nationally. Within CA, it ranks 190 of 2,555.
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Before leaning on 93004's figures: the methodology explains exactly which NOAA and USDA figures feed 93004's numbers, while zone vs. frost date explains why Zone 10a and San Buenaventura (Ventura)'s frost date answer different questions.