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Castle Point Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on January 13th, 2026 12:01 AM). You can also use the My Cozy Plant app for faster frost warnings and alerts in your postal code.
Jan 13th
Safe
Jan 14th
Radiation Frost (Clear skies froze leaves)
Jan 15th
False Security / Chilling Injury (Too cold for Basil)
Last Frost Date (Spring)
The average last frost date for Castle Point is April 10th. We recommend waiting until April 24th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Castle Point is December 1st.
Growing Season
Based on historical data, the growing season in Castle Point is approximately 235 days long.
Castle Point Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Castle Point Monthly Gardening Guide
January
In January, you can start Lavender indoors, start Celery indoors, start Snapdragon indoors, start Impatiens indoors, and start Begonia indoors.
February
In February, you can start Brussel Sprout indoors, start Cabbage indoors, start Sage indoors, start Black Eyed Susan indoors, and start Marigold indoors.
March
In March, you can sow Calendula outside, sow Parsley outside, sow Hyssop outside, sow German Chamomile outside, and sow Mustard outside.
April
In April, you can sow Lima Bean outside, sow Melon outside, sow Corn outside, sow Gladiolus outside, and sow Butterfly Pea outside.