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Will it freeze in Union City in the next 7 nights?
No overnight lows at or below 32°F are forecast in Union City during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 57°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 57°F Above 36°F · Mostly Cloudy
- Fri, Nov 6 48°F Above 36°F · Mostly Clear
- Sat, Nov 7 41°F Above 36°F · Partly Cloudy
- Sun, Nov 8 42°F Above 36°F · Partly Cloudy
- Mon, Nov 9 42°F Above 36°F · Mostly Clear
- Tue, Nov 10 44°F Above 36°F · Partly Cloudy
- Wed, Nov 11 45°F Above 36°F · Mostly Clear
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Union City
The median first fall hard-freeze date (28°F) is December 5, from NOAA’s 1991–2020 Climate Normals at Atlanta Hartsfield Intl Airport. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Mar 10 · Mar 29 · Apr 16 | Oct 28 · Nov 7 · Nov 25 | 226 days |
| 32°F freeze | Feb 23 · Mar 15 · Apr 4 | Nov 4 · Nov 20 · Dec 10 | 252 days |
| 28°F hard freeze | Feb 1 · Feb 28 · Mar 20 | Nov 14 · Dec 5 · Jan 3 | 281 days |
Average high temperature by month
1991–2020 normals at Atlanta Hartsfield Intl Airport
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Union City, GA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Atlanta Hartsfield Intl Airport (station USW00013874, elevation 1,010 ft), 7.4 mi from Union City. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Union City
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| South Fulton, GA | 3.1 mi | Mar 15 | Nov 20 |
| Fairburn, GA | 3.7 mi | Mar 15 | Nov 20 |
| College Park, GA | 6.8 mi | Mar 15 | Nov 20 |
| East Point, GA | 7.5 mi | Mar 15 | Nov 20 |
| Palmetto, GA | 7.5 mi | Mar 26 | Nov 6 |
| Tyrone, GA | 8.1 mi | Mar 26 | Nov 6 |
| Riverdale, GA | 8.7 mi | Mar 25 | Nov 12 |
| Hapeville, GA | 9.9 mi | Mar 15 | Nov 20 |
| Fayetteville, GA | 11 mi | Mar 26 | Nov 6 |
| Forest Park, GA | 12 mi | Mar 15 | Nov 20 |
Frequently asked questions
When is the last frost in Union City?
On average, the last spring frost (32°F) in Union City is around March 15. In about 1 year in 10 it comes after April 4, and in 9 years in 10 it comes after February 23.
When is the first frost in Union City?
The first fall frost (32°F) usually arrives around November 20. There’s a 10% chance of a freeze by November 4 and a 90% chance by December 10.
Can it frost in Union City after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after March 29.
What growing zone is Union City?
Union City is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 30291. See growing zones in Georgia.
More: all Georgia frost dates · Georgia growing zones · UV index today in Union City · frost vs. freeze