Summerville, GA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Summerville's primary NOAA station, SUMMERVILLE.
The climate verdict for Summerville
Water is the standout signal in Summerville, Georgia: 58.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 60°F. Its climate comfort score of 73/100 (good) lands mid-pack nationally, exceeding 66% of station-mapped location scores.
- 60°F
- average temperature, NOAA 1991-2020 normal
- 73/100
- comfort score, above 66% of station-mapped location scores
- 58.3"
- yearly precipitation total
- 206 days
- frost-free days per growing season
Summerville: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00098436 · Summerville, GA 60°F mean · 58.3" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 60°F
- RANK-UPPER #5,077
- PHOTO-FINISH ≈ Oceana
- PRCP-WET 58.3"
- SWING-MID 38°F
- COMF-MID 73/100
- LOAD-HEAT 3,395 HDD
- STN-1 USC00098436
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Oceana, VA (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every GA station list.
- Summerville (this station) 60°F
- Cold Centre, AL 60°F
- Hot Clayton Wtp, NC 60°F
- Near Oceana, VA 60°F
- Near Rocky Mt, NC 60°F
Summerville sits in Georgia, the #6 hottest U.S. state at 63.4°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Summerville
Summerville: 68/100 · grade C
Summerville publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Summerville, not an official NOAA rating. Rankings still use Comfort Score 73/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 0.3 inches/year | 88/100 · A |
| Normal heat + freeze calendar | 83 calendar days | 81/100 · B |
| Annual temperature balance | 59.8°F · 7.7° from 67.5°F | 76/100 · B |
| Frost-free season | 206 days/year | 69/100 · C |
| Precipitation balance | 58.3 in · 23.3 from 35 in | 17/100 · F |
Summerville · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Summerville is a temperate Köppen climate: Cfa
Coldest-month mean 40.5°F and warmest-month mean 78.5°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 78.5°F
- Coldest month
- 40.5°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Summerville sits across the climate record
Three NOAA fields for Summerville's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 26% warmest
- Among 6,861 stations, Summerville sits in the warmer third of annual means.
- Annual precipitation
- Top 7% wettest
- Summerville's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 73%
- Warmest-to-coldest month gap for Summerville is compact versus 6,861 complete station-years.
How Summerville compares across U.S. station-mapped locations
Summerville's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
73 Top 34% score exceeds 66% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 52°F (11°C) | 29°F (-2°C) | 41°F (5°C) | 5.0" | 0.1" | 20.5 | 0.0 |
| February | 57°F (14°C) | 31°F (0°C) | 44°F (7°C) | 5.4" | 0.1" | 16.9 | 0.0 |
| March | 64°F (18°C) | 37°F (3°C) | 51°F (10°C) | 6.1" | 0.0" | 9.9 | 0.0 |
| April | 73°F (23°C) | 45°F (7°C) | 59°F (15°C) | 5.0" | 0.0" | 2.1 | 0.2 |
| May | 80°F (27°C) | 55°F (13°C) | 67°F (20°C) | 4.4" | 0.0" | 0.0 | 2.1 |
| June | 87°F (30°C) | 63°F (17°C) | 75°F (24°C) | 4.9" | 0.0" | 0.0 | 12.3 |
| July | 90°F (32°C) | 67°F (19°C) | 79°F (26°C) | 4.3" | 0.0" | 0.0 | 18.1 |
| August | 89°F (32°C) | 66°F (19°C) | 78°F (25°C) | 4.3" | 0.0" | 0.0 | 17.5 |
| September | 84°F (29°C) | 59°F (15°C) | 72°F (22°C) | 4.2" | 0.0" | 0.0 | 10.0 |
| October | 75°F (24°C) | 47°F (8°C) | 61°F (16°C) | 3.8" | 0.0" | 2.5 | 0.6 |
| November | 63°F (17°C) | 36°F (2°C) | 49°F (10°C) | 4.6" | 0.0" | 13.6 | 0.0 |
| December | 55°F (13°C) | 32°F (0°C) | 43°F (6°C) | 6.3" | 0.1" | 17.6 | 0.0 |
The year, day by day
Summerville works both ends of the calendar. Normal highs climb to 90°F by July 16 and hold at or above 90°F on 23 dates, then normal lows drop to freezing or below on 60 dates, bottoming at 28°F around January 19.
When the heat sits
Normal highs reach 90°F from July 13 through August 4, covering 23 dates. The broader mild season, normal highs of 70°F or more, runs April 3 to October 27.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into February 17, then returns to freezing around December 20, covering 60 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is February 22, when 32% of years recorded at least a hundredth of an inch. The driest is September 16 at 20%. Summed across the calendar, that is about 102 wet dates a year.
The widest day
April 9 carries the biggest normal gap between afternoon and dawn, 30°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Summerville.
Where Summerville Stands Nationally
This is one of the wettest normals climates ranked: about 58 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Summerville earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 0.1"
9.5 days with precipitation
Snow: 0.1"
9.3 days with precipitation
9.5 days with precipitation
7.9 days with precipitation
8.8 days with precipitation
9.9 days with precipitation
9.2 days with precipitation
8.8 days with precipitation
6.1 days with precipitation
6.5 days with precipitation
7.5 days with precipitation
Snow: 0.1"
9.4 days with precipitation
Summerville spreads its precipitation across the year
Neither half of the year dominates here: June through August take 23% of the annual total and December through February 29%, with neither reaching the 35% that would mark a distinct wet season. Summerville has no dry season to plan around, though it does carry a 38°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 6.3" and October 3.8". The three wettest months together take 31% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
When it rains in Summerville, it arrives in quantity
58.3" of precipitation falls across only about 102 wet days here, averaging 0.57 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 102 a year, 28% of all days
- Average depth per wet day
- 0.57 inches
- Most wet days
- June, about 10
- Fewest wet days
- September, about 6
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Snow reaches Summerville, but rarely amounts to much
The normals record 0.3 inches of snow a year here, most likely in January. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 0 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 30
50% probability date
Last Spring Freeze
April 7
50% probability date
Growing Season
206 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,395
Higher = more heating needed
Cooling Degree Days
1,527
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside GA closest to Summerville on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (60°F here).
- Beatty, NV 60°F · 0.0°F off
- Bisbee, AZ 60°F · 0.0°F off
- Cheyenne, OK 60°F · 0.0°F off
- Conchas Dam, NM 60°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (58.3" here), excluding temperature-peer places.
- Ocracoke, NC 58.3" · 0.0" off
- Murfreesboro, AR 58.4" · 0.0" off
- Packwood, WA 58.4" · 0.0" off
- Winnsboro, LA 58.3" · 0.1" off
Data-derived climate profile
How Summerville's climate pattern fits together
heating led · wet · mid swing
Summerville's energy balance leans toward cold weather: 3,395 annual heating degree days against 1,527 for cooling. Its 38.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Summerville's frost-free season lasts about 206 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Summerville's middle-range seasonal profile. The measured spread is 38.0°F. The annual average is 60°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Summerville carries 58.3 inches of precipitation in a normal year, inside PlainClimate's wet range. Recorded annual snowfall is negligible. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Summerville's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Summerville, not an official NOAA class or a year-ahead forecast.
Questions about Summerville's climate
How much rain does Summerville get? ▼
How many days above 90°F does Summerville get? ▼
How much energy does heating and cooling require in Summerville? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Summerville's primary station: SUMMERVILLE (USC00098436). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 1374376). Match rule for Summerville: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Summerville comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.