Glennville, Georgia climate: Normal weather by month, frost dates and records
Glennville's normal year runs from 38°F January nights to 92°F July afternoons, with 49.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 18.9°C, January lows of 3°C, July highs of 34°C, 1,264 mm of precipitation a year.
- NOAA stationGlennville (3 mi NW)
- Station IDUSC00093754
- Location31.99°N 81.95°W
- Elevation200 ft (61 m)
- Population5,104
On October 23, the normal high in Glennville is 77°F and the normal low 52°F, and the chance of measurable rain or snow is 18%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Glennville.
- Jan 61° 38°
- Feb 65° 40°
- Mar 71° 46°
- Apr 79° 52°
- May 85° 61°
- Jun 90° 69°
- Jul 92° 72°
- Aug 91° 71°
- Sep 87° 66°
- Oct 79° 55°
- Nov 70° 46°
- Dec 63° 40°
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 Glennville each month?
July is the warmest month, with normal highs of 92°F; January the coldest, with normal lows of 38°F. The most precipitation falls in August (7.48 in), the least in November (2.55 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 61°F | 38°F | 49.0°F | 3.83 | 8 | <1 | 11 | 10 h 20 min |
| February | 65°F | 40°F | 52.5°F | 3.78 | 8 | <1 | 6 | 11 h |
| March | 71°F | 46°F | 58.7°F | 3.86 | 7 | <1 | 2 | 12 h |
| April | 79°F | 52°F | 65.5°F | 3.01 | 6 | 2 | <1 | 13 h |
| May | 85°F | 61°F | 72.9°F | 3.50 | 6 | 10 | <1 | 13 h 50 min |
| June | 90°F | 69°F | 79.3°F | 5.96 | 10 | 20 | <1 | 14 h 10 min |
| July | 92°F | 72°F | 81.9°F | 5.32 | 10 | 26 | <1 | 14 h |
| August | 91°F | 71°F | 81.1°F | 7.48 | 11 | 22 | <1 | 13 h 20 min |
| September | 87°F | 66°F | 76.4°F | 3.33 | 7 | 12 | <1 | 12 h 20 min |
| October | 79°F | 55°F | 67.1°F | 3.59 | 6 | 1 | <1 | 11 h 30 min |
| November | 70°F | 46°F | 57.8°F | 2.55 | 6 | <1 | 2 | 10 h 30 min |
| December | 63°F | 40°F | 51.4°F | 3.56 | 7 | <1 | 8 | 10 h |
| Year (annual) | 78°F | 55°F | 66.1°F | 49.77 | 91 | 92 | 30 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 16°C | 3°C | 9.4°C | 97 mm |
| February | 18°C | 5°C | 11.4°C | 96 mm |
| March | 22°C | 8°C | 14.8°C | 98 mm |
| April | 26°C | 11°C | 18.6°C | 76 mm |
| May | 30°C | 16°C | 22.7°C | 89 mm |
| June | 32°C | 20°C | 26.3°C | 151 mm |
| July | 34°C | 22°C | 27.7°C | 135 mm |
| August | 33°C | 22°C | 27.3°C | 190 mm |
| September | 30°C | 19°C | 24.7°C | 85 mm |
| October | 26°C | 13°C | 19.5°C | 91 mm |
| November | 21°C | 8°C | 14.3°C | 65 mm |
| December | 17°C | 5°C | 10.8°C | 90 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00093754; 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 Glennville?
Normal highs sit between 65°F and 85°F in March, April, October and November. Of those, November has the fewest days with rain (6).
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 USC00093754.
When is the last frost in Glennville?
In Glennville, the last spring frost (32°F) comes after March 9 in half of years and after March 30 in one year in ten; the first autumn frost comes before November 24 in half of years and before November 5 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 91 year in 10 after March 30; 9 in 10 after February 16
- First autumn frost, half of years before
- November 241 year in 10 before November 5; 9 in 10 before December 15
NOAA puts the median frost-free season at 258 days, and the season without a hard freeze (28°F) at 291 days.
A hard freeze (28°F) comes after February 23 in half of springs and before December 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Glennville in zone 9a in ZIP code 30427, the nearest ZIP area.
Frost dates for every NOAA station in Georgia · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00093754; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Glennville?
In a normal year in Glennville, 92 days a year reach 90°F (5 of them 100°F or more), 30 nights fall to 32°F or colder and 91 days bring measurable precipitation.
- Days at 90°F or more
- 92a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 30a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 91a normal year
The highest temperature in this station's record (since 1904) is 113°F, on July 14, 2001; the lowest is 1°F, on January 21, 1985.
The wettest calendar year on that record is 1929, with 70.46 in; the snowiest season is 1976–77, with 2.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00093754; records: ACIS (NOAA Regional Climate Centers), station USC00093754. Records use complete months only; a month missing more than three days is left out.
How sunny is Glennville?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Glennville, 4.7 kWh per square metre a day. May is the sunniest month (83%) and February the cloudiest (73%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 3.0 |
| February | 73% | 3.6 |
| March | 78% | 4.8 |
| April | 82% | 6.0 |
| May | 83% | 6.5 |
| June | 79% | 6.2 |
| July | 82% | 6.2 |
| August | 79% | 5.6 |
| September | 77% | 4.8 |
| October | 79% | 4.1 |
| November | 80% | 3.3 |
| December | 74% | 2.6 |
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 Glennville need?
A normal year in Glennville brings 1,910 heating degree days, 64% fewer than the median U.S. place (5,373), and 2,351 cooling degree days, 2.6 times the median (908). Three months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 6,266 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 499 | 5 |
| February | 355 | 6 |
| March | 229 | 32 |
| April | 80 | 95 |
| May | 11 | 257 |
| June | 0 | 429 |
| July | 0 | 524 |
| August | 0 | 499 |
| September | 2 | 344 |
| October | 63 | 126 |
| November | 245 | 27 |
| December | 427 | 7 |
| Year (annual) | 1,910 | 2,351 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00093754. 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 Glennville been warmer than normal lately?
2025 averaged 67.1°F, 1.0°F above the 1991-2020 normal of 66.1°F. 4 of the 4 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 67.6°F | +1.5°F | 40.57 |
| 2023 | 68.1°F | +2.0°F | 59.59 |
| 2024 | 68.1°F | +2.0°F | 59.98 |
| 2025 | 67.1°F | +1.0°F | 41.04 |
Over 82 complete years from 1905 to 2025, the station's annual mean temperature rose at a fitted 0.7°F per century (+0.04°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00093754; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Glennville's climate compare?
Glennville is warmer than 77 of the other 100 places with their own NOAA record in Georgia, and wetter than 34. Across the 7,247 U.S. stations with normals, its annual mean of 66.1°F is warmer than 90%.
In the Köppen classification computed from these normals, Glennville 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 Glennville share this climate record?
7 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.
- Reidsville, GA2,555 people · 12 mi NW
- Claxton, GA2,543 people · 12 mi N
- Hagan, GA952 people · 11 mi N
- Mendes, GA197 people · 1 mi NW
- Daisy, GA157 people · 13 mi NE
- Bellville, GA125 people · 12 mi N
- Manassas, GA61 people · 13 mi N
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 Glennville's climate
What is the coldest month in Glennville?
January, with a normal high of 61°F and a normal low of 38°F. The warmest is July (92°F by day, 72°F at night).
Does it snow in Glennville?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Glennville?
August, with 7.48 in of precipitation in a normal year; the driest is November with 2.55 in.
What plant hardiness zone is Glennville in?
The USDA's 2023 map puts Glennville in zone 9a in ZIP code 30427, the nearest ZIP area.
How late can frost come in Glennville?
In half of years the last 32°F night comes after March 9; in one year in ten it comes after March 30. Waiting until March 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Georgia climateThe statewide normals and every place in the state
- Fort Stewart, GA21 miles from this station, 67.8°F a year
- Surrency, GA24 miles from this station, 66.5°F a year
- Baxley, GA27 miles from this station, 66.2°F a year
- Metter, GA29 miles from this station, 66.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made