Cornelia, Georgia climate: Normal weather by month, frost dates and records
Cornelia's normal year runs from 30°F January nights to 86°F July afternoons, with 58.9 inches of precipitation and less than an inch of snow (0.6 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.7°C, January lows of −1°C, July highs of 30°C, 1,497 mm of precipitation a year.
- NOAA stationCornelia
- Station IDUSC00092283
- Location34.52°N 83.53°W
- Elevation1,470 ft (448 m)
- Population5,371
On October 23, the normal high in Cornelia is 68°F and the normal low 46°F, and the chance of measurable rain or snow is 24%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Cornelia.
- Jan 49° 30°
- Feb 53° 33°
- Mar 60° 39°
- Apr 69° 47°
- May 76° 55°
- Jun 82° 63°
- Jul 86° 67°
- Aug 84° 66°
- Sep 79° 60°
- Oct 70° 49°
- Nov 60° 39°
- Dec 52° 34°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Cornelia each month?
July is the warmest month, with normal highs of 86°F; January the coldest, with normal lows of 30°F. The most precipitation falls in March (5.61 in), the least in May (3.92 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 49°F | 30°F | 39.8°F | 5.46 | 10 | <1 | 18 | 10 h |
| February | 53°F | 33°F | 43.1°F | 5.05 | 10 | <1 | 13 | 11 h |
| March | 60°F | 39°F | 49.7°F | 5.61 | 11 | <1 | 8 | 11 h 50 min |
| April | 69°F | 47°F | 57.9°F | 4.39 | 9 | <1 | 1 | 13 h |
| May | 76°F | 55°F | 65.5°F | 3.92 | 9 | <1 | <1 | 14 h |
| June | 82°F | 63°F | 72.7°F | 5.12 | 11 | 3 | <1 | 14 h 30 min |
| July | 86°F | 67°F | 76.1°F | 4.70 | 11 | 8 | <1 | 14 h 20 min |
| August | 84°F | 66°F | 74.8°F | 5.60 | 11 | 5 | <1 | 13 h 30 min |
| September | 79°F | 60°F | 69.4°F | 4.39 | 8 | 1 | <1 | 12 h 30 min |
| October | 70°F | 49°F | 59.3°F | 4.76 | 7 | <1 | <1 | 11 h 20 min |
| November | 60°F | 39°F | 49.5°F | 4.45 | 8 | <1 | 7 | 10 h 20 min |
| December | 52°F | 34°F | 42.8°F | 5.49 | 10 | <1 | 15 | 9 h 50 min |
| Year (annual) | 68°F | 48°F | 58.4°F | 58.94 | 115 | 17 | 62 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | −1°C | 4.3°C | 139 mm |
| February | 12°C | 1°C | 6.2°C | 128 mm |
| March | 16°C | 4°C | 9.8°C | 142 mm |
| April | 21°C | 8°C | 14.4°C | 112 mm |
| May | 24°C | 13°C | 18.6°C | 100 mm |
| June | 28°C | 17°C | 22.6°C | 130 mm |
| July | 30°C | 19°C | 24.5°C | 119 mm |
| August | 29°C | 19°C | 23.8°C | 142 mm |
| September | 26°C | 15°C | 20.8°C | 112 mm |
| October | 21°C | 9°C | 15.2°C | 121 mm |
| November | 16°C | 4°C | 9.7°C | 113 mm |
| December | 11°C | 1°C | 6.0°C | 139 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00092283; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Cornelia?
Normal highs sit between 65°F and 85°F in April, May, June, August, September and October. Of those, October has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00092283.
When is the last frost in Cornelia?
In Cornelia, the last spring frost (32°F) comes after March 30 in half of years and after April 14 in one year in ten; the first autumn frost comes before November 6 in half of years and before October 24 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 301 year in 10 after April 14; 9 in 10 after March 12
- First autumn frost, half of years before
- November 61 year in 10 before October 24; 9 in 10 before November 25
NOAA puts the median frost-free season at 222 days, and the season without a hard freeze (28°F) at 248 days.
A hard freeze (28°F) comes after March 18 in half of springs and before November 18 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Cornelia in zone 8a in ZIP code 30531. By the map's own method, the average of each year's coldest night over 1991-2020, Cornelia's NOAA station is in zone 8a: the coldest night of a typical year reaches 12°F (30 complete years).
Frost dates for every NOAA station in Georgia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00092283; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Cornelia?
In a normal year in Cornelia, 17 days a year reach 90°F, 62 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 17a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 62a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
The highest temperature in this station's record (since 1919) is 103°F, on July 12, 1930; the lowest is −10°F, on January 21, 1985.
The wettest calendar year on that record is 2013, with 85.75 in; the snowiest season is 1970–71, with 8.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00092283; records: ACIS (NOAA Regional Climate Centers), station USC00092283. Records use complete months only; a month missing more than three days is left out.
How sunny is Cornelia?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Cornelia, 4.5 kWh per square metre a day. June is the sunniest month (80%) and February the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.7 |
| February | 69% | 3.3 |
| March | 72% | 4.3 |
| April | 77% | 5.5 |
| May | 78% | 6.1 |
| June | 80% | 6.3 |
| July | 79% | 6.1 |
| August | 80% | 5.6 |
| September | 79% | 4.8 |
| October | 79% | 4.0 |
| November | 78% | 3.0 |
| December | 70% | 2.3 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Cornelia need?
A normal year in Cornelia brings 3,564 heating degree days, 34% fewer than the median U.S. place (5,373), and 1,176 cooling degree days, 30% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,158 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 780 | 0 |
| February | 615 | 0 |
| March | 477 | 2 |
| April | 233 | 20 |
| May | 73 | 89 |
| June | 6 | 236 |
| July | 0 | 343 |
| August | 1 | 304 |
| September | 25 | 156 |
| October | 200 | 25 |
| November | 467 | 2 |
| December | 688 | 0 |
| Year (annual) | 3,564 | 1,176 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00092283. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Cornelia been warmer than normal lately?
2025 averaged 60.1°F, 1.7°F above the 1991-2020 normal of 58.4°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.2°F | +1.8°F | 66.38 |
| 2024 | 61.0°F | +2.6°F | 66.79 |
| 2025 | 60.1°F | +1.7°F | 48.75 |
Over 76 complete years from 1920 to 2025, the station's annual mean temperature rose at a fitted 0.9°F per century (+0.05°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00092283; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Cornelia's climate compare?
Cornelia is warmer than 6 of the other 100 places with their own NOAA record in Georgia, and wetter than 77. Across the 7,247 U.S. stations with normals, its annual mean of 58.4°F is warmer than 70%.
In the Köppen classification computed from these normals, Cornelia is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Cornelia share this climate record?
3 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Baldwin, GA4,217 people · 2 mi SW
- Demorest, GA2,189 people · 3 mi N
- Mount Airy, GA1,493 people · 2 mi E
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Cornelia's climate
What is the coldest month in Cornelia?
January, with a normal high of 49°F and a normal low of 30°F. The warmest is July (86°F by day, 67°F at night).
Does it snow in Cornelia?
Rarely: NOAA's normal is 0.6 inch a year.
What is the rainiest month in Cornelia?
March, with 5.61 in of precipitation in a normal year; the driest is May with 3.92 in.
What plant hardiness zone is Cornelia in?
The USDA's 2023 map puts Cornelia in zone 8a in ZIP code 30531. By the same method at Cornelia's NOAA station, the coldest night of a typical year reaches 12°F (30 years, 1991-2020): zone 8a.
How late can frost come in Cornelia?
In half of years the last 32°F night comes after March 30; in one year in ten it comes after April 14. Waiting until April 14 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Alto, GA6 miles from this station, 59.5°F a year
- Clarkesville, GA7 miles from this station, 58.6°F a year
- Toccoa, GA12 miles from this station, 61.5°F a year
- Cleveland, GA14 miles from this station, 57.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made