Austin San Antonio, TX Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Austin San Antonio's primary NOAA station, AUSTIN SAN ANTONIO.
The climate verdict for Austin San Antonio
Warm-season cooling demand defines Austin San Antonio, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 70°F. It scores 96/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 96% of them.
- 70°F
- annual average temperature (NOAA normal)
- 96/100
- comfort score, above 96% of station-mapped location scores
- 31.3"
- precipitation, annual total
- 270 days
- growing season, frost-free days
Austin San Antonio: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00012971 · Austin San Antonio, TX 70°F mean · 31.3" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-MILD 70°F
- RANK-WARM #6,518
- PHOTO-FINISH ≈ San Antonio
- PRCP-MID 31.3"
- SWING-MID 33°F
- COMF-TOP 96/100
- LOAD-COOL 3,144 CDD
- STN-1 USW00012971
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: San Antonio, TX (+ 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 TX station list.
- Austin San Anto… (this station) 70°F
- Cold Pinnacle Peak, AZ 70°F
- Hot Tucson Camp Ave, AZ 70°F
- Near San Antonio, TX 70°F
- Near Conroe, TX 70°F
Austin San Antonio sits in Texas, the #4 hottest U.S. state at 66.2°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Austin San Antonio
Austin San Antonio: 82/100 · grade B
Austin San Antonio publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Austin San Antonio, not an official NOAA rating. Rankings still use Comfort Score 96/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 270 days/year | 94/100 · A |
| Annual temperature balance | 69.6°F · 2.1° from 67.5°F | 93/100 · A |
| Precipitation balance | 31.3 in · 3.7 from 35 in | 86/100 · A |
| Normal heat + freeze calendar | 121 calendar days | 64/100 · C |
Austin San Antonio · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Austin San Antonio is a temperate Köppen climate: Cfa
Coldest-month mean 52.2°F and warmest-month mean 85.1°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
- 85.1°F
- Coldest month
- 52.2°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 · cooling-led station
Where Austin San Antonio sits across the climate record
Three NOAA fields for Austin San Antonio's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 5% warmest
- Among 6,861 stations, Austin San Antonio sits in the warmer third of annual means.
- Annual precipitation
- 41st percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 86%
- Warmest-to-coldest month gap for Austin San Antonio is compact versus 6,861 complete station-years.
How Austin San Antonio compares across U.S. station-mapped locations
Austin San Antonio's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
96 Top 4% score exceeds 96% 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%). Below this entry.
- 80–90: 921 station-mapped locations (15%). Below this entry.
- 90–100: 564 station-mapped locations (9%). This entry sits in this band.
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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 2.1" | 6.6 | 0.0 |
| February | 68°F (20°C) | 44°F (7°C) | 56°F (13°C) | 1.7" | 3.9 | 0.2 |
| March | 75°F (24°C) | 51°F (10°C) | 63°F (17°C) | 2.5" | 1.1 | 0.6 |
| April | 82°F (28°C) | 58°F (14°C) | 70°F (21°C) | 2.0" | 0.0 | 3.3 |
| May | 88°F (31°C) | 66°F (19°C) | 77°F (25°C) | 3.6" | 0.0 | 12.8 |
| June | 93°F (34°C) | 71°F (22°C) | 82°F (28°C) | 3.4" | 0.0 | 24.9 |
| July | 96°F (36°C) | 73°F (23°C) | 85°F (29°C) | 2.2" | 0.0 | 28.6 |
| August | 98°F (36°C) | 73°F (23°C) | 85°F (30°C) | 2.0" | 0.0 | 29.2 |
| September | 92°F (33°C) | 68°F (20°C) | 80°F (27°C) | 3.5" | 0.0 | 20.7 |
| October | 84°F (29°C) | 59°F (15°C) | 71°F (22°C) | 3.3" | 0.0 | 7.2 |
| November | 73°F (23°C) | 49°F (10°C) | 61°F (16°C) | 2.5" | 1.5 | 0.2 |
| December | 65°F (19°C) | 42°F (5°C) | 54°F (12°C) | 2.4" | 6.4 | 0.0 |
The year, day by day
The year in Austin San Antonio runs from a mild 40°F around January 2 to 98°F at the peak near August 5, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 26 through September 23, covering 121 dates. The broader mild season, normal highs of 70°F or more, runs February 24 to November 24.
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.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 40°F around January 2.
Where the wet dates fall
The likeliest wet date is March 14, when 24% of years recorded at least a hundredth of an inch. The driest is August 3 at 15%. Summed across the calendar, that is about 78 wet dates a year.
The widest day
August 12 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Austin San Antonio.
Where Austin San Antonio Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 121 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Austin San Antonio 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
6.4 days with precipitation
6.4 days with precipitation
7.6 days with precipitation
6.4 days with precipitation
7.5 days with precipitation
6.1 days with precipitation
5.8 days with precipitation
4.7 days with precipitation
7.1 days with precipitation
6.7 days with precipitation
6.6 days with precipitation
6.4 days with precipitation
Austin San Antonio spreads its precipitation across the year
Neither half of the year dominates here: June through August take 24% of the annual total and December through February 20%, with neither reaching the 35% that would mark a distinct wet season. Austin San Antonio has no dry season to plan around, though it does carry a 32.9°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 3.6" and February 1.7". The three wettest months together take 34% 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 Austin San Antonio, it arrives in quantity
31.3" of precipitation falls across only about 78 wet days here, averaging 0.40 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 78 a year, 21% of all days
- Average depth per wet day
- 0.40 inches
- Most wet days
- March, about 8
- Fewest wet days
- August, about 5
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.
Frost Dates & Growing Season
First Fall Freeze
November 26
50% probability date
Last Spring Freeze
March 1
50% probability date
Growing Season
270 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,446
Higher = more heating needed
Cooling Degree Days
3,144
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Austin San Antonio 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 (70°F here).
- Bushnell, FL 70°F · 0.0°F off
- Houma, LA 70°F · 0.0°F off
- Gainesville, FL 70°F · 0.1°F off
- Hackberry, LA 70°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (31.3" here), excluding temperature-peer places.
- Cherokee, OK 31.3" · 0.0" off
- Beatrice, NE 31.3" · 0.0" off
- Ely, MN 31.3" · 0.0" off
- Grants Pass, OR 31.3" · 0.0" off
Data-derived climate profile
How Austin San Antonio's climate pattern fits together
cooling led · moderate · mid swing
Air-conditioning demand is the clearest thermal signal here. Austin San Antonio accumulates 3,144 cooling degree days, more than twice its 1,446 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
Austin San Antonio's 31.3 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
August and January mark the typical warm and cold ends of the calendar in Austin San Antonio's middle-range seasonal profile. The measured spread is 32.9°F. The annual average is 70°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
The frost-free window extends for about 270 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
These labels group NOAA 1991-2020 normals from Austin San Antonio's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. For Austin San Antonio that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Austin San Antonio's climate
How much rain does Austin San Antonio get? ▼
How many days above 90°F does Austin San Antonio get? ▼
How much energy does heating and cooling require in Austin San Antonio? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Austin San Antonio's primary station: AUSTIN SAN ANTONIO (USW00012971). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Austin San Antonio; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Austin San Antonio 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.