Which frost date do the crop weeks use?

Weeks after the frost-free date use the median last 32°F date, March 25, when the guide does not name a probability. Weeks before the first freeze use the median first 32°F date, November 9. Both medians are 50% dates in the NOAA 1991–2020 normals for the station on this page. The page says when that anchor was used.

Where do the crop dates come from?

Crop dates come from the extension guide cited on this page, not from a second calendar invented here. The publisher and the title are printed with the source note. A month without a day is expanded to the first and last day of that month, and the page says so. A phrase without two dates stays a phrase.

Is this planting calendar a forecast?

No. The frost dates are 1991–2020 climate normals at the station 5.5 miles from the city point. The crop windows are the cited guide’s ranges, shifted only when that guide itself used weeks. A cold spring can still fall past the median. The National Weather Service forecast covers a particular night. This page does not.

Planting calendar for Sandy Springs, GA

Direct answer. In Sandy Springs, GA, the median last 32°F date at ATLANTA PEACHTREE AP, GA US (USW00053863) is March 25, and the median first 32°F date is November 9. The station is 5.5 miles from the city point. Crop windows come from UGA Cooperative Extension. Where that guide counts weeks from a frost date and does not name a 10%, 50%, or 90% level, those weeks are applied to these median dates.

Median last 32°F March 25. Median first 32°F November 9. Frost dates for Sandy Springs.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Median last 32°F is March 25. Median first 32°F is November 9. The 50% growing-season length is 228 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	March 5	Earlier date. A last 32°F on or after this day is common.
50%	March 25	Median.
10%	April 12	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	October 26	Earlier date. A first 32°F on or before this day is uncommon.
50%	November 9	Median.
90%	November 27	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	253
50%	228
90%	205

28°F threshold

	10%	50%	90%
Last, on or after	March 31	March 12	February 18
First, on or before	November 4	November 22	December 14
Season at least	287 days	256 days	229 days

36°F threshold

	10%	50%	90%
Last, on or after	April 22	April 7	March 21
First, on or before	October 17	October 29	November 12
Season at least	225 days	205 days	185 days

Station ATLANTA PEACHTREE AP, GA US (USW00053863). Completeness flag R, 20 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 305.4 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Questions

Which frost date do the crop weeks use?: Weeks after the frost-free date use the median last 32°F date, March 25, when the guide does not name a probability. Weeks before the first freeze use the median first 32°F date, November 9. Both medians are 50% dates in the NOAA 1991–2020 normals for the station on this page. The page says when that anchor was used.
Where do the crop dates come from?: Crop dates come from the extension guide cited on this page, not from a second calendar invented here. The publisher and the title are printed with the source note. A month without a day is expanded to the first and last day of that month, and the page says so. A phrase without two dates stays a phrase.
Is this planting calendar a forecast?: No. The frost dates are 1991–2020 climate normals at the station 5.5 miles from the city point. The crop windows are the cited guide’s ranges, shifted only when that guide itself used weeks. A cold spring can still fall past the median. The National Weather Service forecast covers a particular night. This page does not.

Crops in the cited guide

Sandy Springs, GA

Zone 8aAverage annual extreme minimum 10°F to 15°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Georgia. Nearest qualified station: ATLANTA PEACHTREE AP, GA US (USW00053863), 5.5 miles. Median last 32°F March 25. Median first 32°F November 9. The 50% growing-season length is 228 days.

Open the ZIP page · Crop guides for Georgia

32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 12	March 25	March 5
First 32°F on or before	October 26	November 9	November 27

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

Planting calendar

Windows below are from UGA Cooperative Extension, Vegetable Gardening in Georgia, Circular 963, retrieved 2026-10-10. Circular 963, revised June 2023, prints one vegetable planting chart for the state. It does not give separate dates for North, Middle, and South Georgia. Where several cultivar rows share a crop name, the page uses the dates those rows print in common and names the row when a date differs.

Crop

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State crop pages: Beans, bush · Beets · Broccoli · Cabbage · Carrots · Collards · Corn, sweet · Cucumber