Anderson, South Carolina climate: Normal weather by month, frost dates and records
Anderson's normal year runs from 33°F January nights to 90°F July afternoons, with 46.3 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.6°C, January lows of 1°C, July highs of 32°C, 1,177 mm of precipitation a year.
- NOAA stationAnderson County Airport
- Station IDUSW00093846
- Location34.50°N 82.71°W
- Elevation760 ft (232 m)
- Population30,937
On October 23, the normal high in Anderson is 71°F and the normal low 48°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Anderson.
- Jan 53° 33°
- Feb 57° 36°
- Mar 65° 42°
- Apr 73° 49°
- May 81° 58°
- Jun 87° 67°
- Jul 90° 70°
- Aug 89° 70°
- Sep 83° 63°
- Oct 73° 51°
- Nov 63° 41°
- Dec 55° 36°
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 Anderson each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 33°F. The most precipitation falls in December (4.42 in), the least in October (3.12 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 53°F | 33°F | 43.0°F | 4.09 | 11 | <1 | 16 | 10 h |
| February | 57°F | 36°F | 46.4°F | 3.88 | 10 | <1 | 11 | 11 h |
| March | 65°F | 42°F | 53.3°F | 4.32 | 10 | <1 | 5 | 11 h 50 min |
| April | 73°F | 49°F | 61.3°F | 3.59 | 9 | <1 | 1 | 13 h |
| May | 81°F | 58°F | 69.5°F | 3.74 | 9 | 3 | <1 | 14 h |
| June | 87°F | 67°F | 76.8°F | 4.18 | 11 | 12 | <1 | 14 h 30 min |
| July | 90°F | 70°F | 80.3°F | 3.76 | 10 | 19 | <1 | 14 h 20 min |
| August | 89°F | 70°F | 79.1°F | 3.90 | 10 | 15 | <1 | 13 h 30 min |
| September | 83°F | 63°F | 73.3°F | 3.74 | 8 | 6 | <1 | 12 h 30 min |
| October | 73°F | 51°F | 62.4°F | 3.12 | 7 | <1 | 1 | 11 h 20 min |
| November | 63°F | 41°F | 51.9°F | 3.60 | 9 | <1 | 7 | 10 h 20 min |
| December | 55°F | 36°F | 45.4°F | 4.42 | 11 | <1 | 13 | 9 h 50 min |
| Year (annual) | 73°F | 51°F | 61.9°F | 46.34 | 115 | 55 | 53 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 12°C | 1°C | 6.1°C | 104 mm |
| February | 14°C | 2°C | 8.0°C | 99 mm |
| March | 18°C | 6°C | 11.8°C | 110 mm |
| April | 23°C | 10°C | 16.3°C | 91 mm |
| May | 27°C | 15°C | 20.8°C | 95 mm |
| June | 31°C | 19°C | 24.9°C | 106 mm |
| July | 32°C | 21°C | 26.8°C | 96 mm |
| August | 32°C | 21°C | 26.2°C | 99 mm |
| September | 28°C | 17°C | 22.9°C | 95 mm |
| October | 23°C | 11°C | 16.9°C | 79 mm |
| November | 17°C | 5°C | 11.1°C | 91 mm |
| December | 13°C | 2°C | 7.4°C | 112 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Anderson's own co-op station Anderson station does: 1 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093846; 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 Anderson?
Normal highs sit between 65°F and 85°F in April, May, 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 USW00093846.
When is the last frost in Anderson?
In Anderson, the last spring frost (32°F) comes after March 29 in half of years and after April 13 in one year in ten; the first autumn frost comes before November 8 in half of years and before October 26 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 291 year in 10 after April 13; 9 in 10 after March 11
- First autumn frost, half of years before
- November 81 year in 10 before October 26; 9 in 10 before November 23
NOAA puts the median frost-free season at 227 days, and the season without a hard freeze (28°F) at 253 days.
A hard freeze (28°F) comes after March 15 in half of springs and before November 21 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Anderson in zone 8a in ZIP code 29621. By the map's own method, the average of each year's coldest night over 1991-2020, Anderson's NOAA station is in zone 8a: the coldest night of a typical year reaches 14°F (30 complete years).
Frost dates for every NOAA station in South Carolina · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00093846; 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 Anderson?
In a normal year in Anderson, 55 days a year reach 90°F (1 of them 100°F or more), 53 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 55a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 53a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
The highest temperature in this station's record (since 1948) is 108°F, on July 29, 1952; the lowest is −6°F, on January 21, 1985.
The wettest calendar year on that record is 1964, with 67.79 in; the snowiest season is 1970–71, with 12.7 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00093846; records: ACIS (NOAA Regional Climate Centers), station USW00093846. Records use complete months only; a month missing more than three days is left out.
How sunny is Anderson?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Anderson, 4.6 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.7 |
| February | 71% | 3.4 |
| March | 74% | 4.4 |
| April | 79% | 5.7 |
| May | 79% | 6.2 |
| June | 82% | 6.5 |
| July | 81% | 6.2 |
| August | 81% | 5.7 |
| September | 80% | 4.9 |
| October | 79% | 4.0 |
| November | 79% | 3.1 |
| December | 73% | 2.4 |
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 Anderson need?
A normal year in Anderson brings 2,911 heating degree days, 46% fewer than the median U.S. place (5,373), and 1,807 cooling degree days, 99% 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 5,114 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 682 | 0 |
| February | 520 | 1 |
| March | 369 | 8 |
| April | 154 | 41 |
| May | 32 | 170 |
| June | 1 | 356 |
| July | 0 | 473 |
| August | 0 | 439 |
| September | 9 | 258 |
| October | 137 | 55 |
| November | 397 | 5 |
| December | 610 | 1 |
| Year (annual) | 2,911 | 1,807 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00093846. 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 Anderson been warmer than normal lately?
2025 averaged 63.2°F, 1.3°F above the 1991-2020 normal of 61.9°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.5°F | +0.6°F | 47.19 |
| 2022 | 63.0°F | +1.1°F | 37.42 |
| 2023 | 63.4°F | +1.5°F | 46.00 |
| 2024 | 64.0°F | +2.1°F | 53.02 |
| 2025 | 63.2°F | +1.3°F | 37.22 |
Over 71 complete years from 1949 to 2025, the station's annual mean temperature rose at a fitted 3.6°F per century (+0.20°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00093846; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Anderson's climate compare?
Anderson is warmer than 21 of the other 72 places with their own NOAA record in South Carolina, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 61.9°F is warmer than 80%.
In the Köppen classification computed from these normals, Anderson 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 Anderson 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.
- Homeland Park, SC6,944 people · 4 mi SE
- Centerville, SC6,860 people · 2 mi N
- Reed Creek, GA2,672 people · 12 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
What do Anderson's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Anderson. This page uses Anderson County Airport; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Anderson station USC00380165 | 3 mi NE | 800 ft | 62.0°F | 33°F | 91°F | 50.3 | 1 | March 23 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Anderson's climate
What is the coldest month in Anderson?
January, with a normal high of 53°F and a normal low of 33°F. The warmest is July (90°F by day, 70°F at night).
Does it snow in Anderson?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Anderson's NOAA station; Anderson's own co-op station Anderson station records 1 inches of snow in a normal year.
What is the rainiest month in Anderson?
December, with 4.42 in of precipitation in a normal year; the driest is October with 3.12 in.
What plant hardiness zone is Anderson in?
The USDA's 2023 map puts Anderson in zone 8a in ZIP code 29621. By the same method at Anderson's NOAA station, the coldest night of a typical year reaches 14°F (30 years, 1991-2020): zone 8a.
How late can frost come in Anderson?
In half of years the last 32°F night comes after March 29; in one year in ten it comes after April 13. Waiting until April 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Anderson in OctoberThis month day by day, its records and recent years
- South Carolina climateThe statewide normals and every place in the state
- Sandy Springs, SC8 miles from this station, 59.9°F a year
- Clemson, SC16 miles from this station, 61.4°F a year
- Hartwell, GA16 miles from this station, 61.3°F a year
- West Pelzer, SC17 miles from this station, 60.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made