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Westminster Frost Dates & Growing Season
Here's the frost forecast for the next three days (last updated on December 8th, 2025 6:03 AM).
Dec 8th
Safe
Dec 9th
Safe
Dec 10th
Safe
Last Frost Date (Spring)
The average last frost date for Westminster is March 25th. We recommend waiting until April 8th before planting tender crops outdoors.
First Frost Date (Autumn)
The average first frost date for Westminster is December 5th.
Growing Season
Based on historical data, the growing season in Westminster is approximately 255 days long.
Westminster Planting Calendar
This weekly planting calendar displays the ideal windows for starting seeds, transplanting, and harvesting.
Westminster Monthly Gardening Guide
January
In January, you can start Snapdragon indoors, start Thyme indoors, start Impatiens indoors, start Rue indoors, and start Aubergine indoors.
February
In February, you can sow Lettuce outside, sow Chives outside, start Luffa indoors, sow Radish outside, and sow Garden Cress outside.
March
In March, you can sow Babys Breath outside, sow Dill outside, sow Lemon Balm outside, sow Quinoa outside, and start Pumpkin indoors.
April
In April, you can sow Cantaloupe outside, sow Okra outside, sow Cucumber outside, sow Melon outside, and sow Sesame outside.