South Pasadena, CA 90032 Frost Dates
South Pasadena, CA: when does the frost end?
The NOAA station nearest to 90032 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).
South Pasadena against the rest of the dataset
At roughly 365 frost-free days, South Pasadena places 1,160 of 40,283 ZIP codes in this dataset. Within CA, it ranks 493 of 2,555.
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Before leaning on 90032's figures: zone vs. frost date explains why Zone 10b and South Pasadena's frost date answer different questions, while local microclimates explains what one yard in South Pasadena can differ from the 90032 normal.