USDA Hardiness Zone 8b
Frost Dates for 30669 — Union Point, Georgia
NOAA 1991–2020 normals from Siloam 3N, GA (695 ft), 6 miles south.
Updated
In Union Point, the last spring frost (32°F) is around March 27 in half of years and has passed by April 13 in nine years out of ten. The first fall frost comes around November 8, as early as October 25 one year in ten, leaving a typical freeze-free season of 226 days (NOAA, Siloam 3N, GA).
- Last spring frost
- March 27
- First fall frost
- November 8
- Growing season
- 226 days
- Hardiness zone
- 8b
50% probability
50% probability
freeze-free, 50%
15 to 20°F (-9.4 to -6.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 0%
- Snow per year
- —
median, 1991–2020
median, 1991–2020
0 of 21 observed
NOAA normal
Frost risk by date in Union Point
Half of springs at Siloam 3N, GA see their last 32°F night by March 27; only one in ten is past it by March 6, and one in ten still has one after April 13. Planting tender crops after April 3 leaves a 30% risk of a frost on them, after April 7 20%, and after April 13 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 56% of the 127 Georgia stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 8 in half of years, as early as October 25 one year in ten, and holds off past November 26 one year in ten. A hard freeze of 28°F follows 15 days later, around November 23; in spring the one-in-ten date for 28°F is March 31, 13 days before the 32°F one. The freeze-free season lasts 226 days in a typical year, shorter than at 65% of the 127 Georgia stations; it reaches 255 days one year in ten and falls short of 205 one year in ten. On average 59 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 13 days longer, to about April 9, and return around October 30. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 65%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 23 | Mar 30 | Apr 2 | Apr 6 | Apr 9 | Apr 12 | Apr 16 | Apr 20 | Apr 28 |
| 32°F | Mar 6 | Mar 14 | Mar 19 | Mar 23 | Mar 27 | Mar 31 | Apr 3 | Apr 7 | Apr 13 |
| 28°F | Feb 17 | Feb 25 | Mar 2 | Mar 7 | Mar 12 | Mar 16 | Mar 20 | Mar 25 | Mar 31 |
| 24°F | Jan 28 | Feb 5 | Feb 12 | Feb 18 | Feb 24 | Mar 1 | Mar 5 | Mar 12 | Mar 19 |
| 20°F93% of yrs | Jan 5 | Jan 16 | Jan 24 | Jan 31 | Feb 4 | Feb 9 | Feb 17 | Feb 27 | Mar 5 |
| 16°F65% of yrs | Dec 30 | Jan 8 | Jan 15 | Jan 21 | Jan 26 | Jan 31 | Feb 3 | Feb 11 | Feb 26 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 21 | Oct 24 | Oct 27 | Oct 30 | Nov 1 | Nov 3 | Nov 7 | Nov 12 |
| 32°F | Oct 25 | Oct 31 | Nov 2 | Nov 5 | Nov 8 | Nov 11 | Nov 15 | Nov 19 | Nov 26 |
| 28°F | Nov 4 | Nov 9 | Nov 14 | Nov 19 | Nov 23 | Nov 28 | Dec 1 | Dec 6 | Dec 17 |
| 24°F | Nov 15 | Nov 24 | Nov 30 | Dec 3 | Dec 8 | Dec 15 | Dec 22 | Dec 30 | Jan 5 |
| 20°F93% of yrs | Dec 1 | Dec 8 | Dec 16 | Dec 24 | Dec 30 | Jan 3 | Jan 9 | Jan 16 | Jan 27 |
| 16°F65% of yrs | Dec 14 | Dec 25 | Jan 1 | Jan 5 | Jan 12 | Jan 16 | Jan 20 | Jan 28 | Feb 7 |
Freeze probabilities 1991–2020 at Siloam 3N, GA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 30669 →Compare Union Point with another place →
Weather by month in Union Point
July is the warmest month at Siloam 3N, GA, averaging 91°F by day and 69°F at night; January is the coldest at 55°F and 32°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 37% of years.
Warmth for growing adds up to 5,113 growing degree days a year (base 50°F), fewer than at 65% of the 127 Georgia stations. 39% of them (2,010) have built up by the end of June, and July adds the most, 925. Precipitation totals 46.0 inches a year, most in March (4.8") and least in October (2.7"); May to September bring 41% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 55 | 32 | 4.0 | 100% | 17 | 43 |
| Feb | 59 | 35 | 4.5 | 99% | 13 | 56 |
| Mar | 66 | 41 | 4.8 | 91% | 6 | 173 |
| Apr | 74 | 48 | 3.3 | 37% | 1 | 345 |
| May | 82 | 57 | 3.0 | 0% | 0 | 591 |
| Jun | 88 | 65 | 4.2 | 0% | 0 | 801 |
| Jul | 91 | 69 | 3.7 | 0% | 0 | 925 |
| Aug | 90 | 68 | 4.1 | 0% | 0 | 886 |
| Sep | 84 | 62 | 3.7 | 0% | 0 | 685 |
| Oct | 75 | 50 | 2.7 | 22% | <1 | 402 |
| Nov | 65 | 40 | 3.5 | 91% | 7 | 142 |
| Dec | 57 | 35 | 4.5 | 98% | 15 | 61 |
Monthly normals 1991–2020 at Siloam 3N, GA (695 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Lexington, GA, 15 miles north of Union Point, has a last frost 4 days later (March 31), a first frost 2 days earlier (November 6), a season 5 days shorter.
When it snows in Union Point, Georgia
Measurable snow is rare here: only 0 of 21 winters from 1991 to 2020 recorded 0.1 inch or more at Siloam 3N, GA, 6.2 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 30669
| When | What to do |
|---|---|
| January 16 – January 30 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 30 – February 13 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 27 – March 13 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 27 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 16 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 25 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 8 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 30669 is 6 miles from Siloam 3N, GA, which stands at 695 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 30642 (Greensboro). The 2023 USDA Plant Hardiness Zone Map lists ZIP 30669 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.