San Antonio/seaworld, 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 San Antonio/seaworld's primary NOAA station, SAN ANTONIO/SEAWORLD.
The climate verdict for San Antonio/seaworld
Warm-season cooling demand defines San Antonio/seaworld, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 71°F. It scores 97/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 97% of them.
- 71°F
- annual average temperature (NOAA normal)
- 97/100
- comfort score, above 97% of station-mapped location scores
- 31.6"
- precipitation, annual total
- 294 days
- frost-free growing season
San Antonio/seaworld: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00418169 · San Antonio/seaworld, TX 71°F mean · 31.6" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 71°F
- RANK-WARM #6,587
- PHOTO-FINISH ≈ San Antonio Sti…
- PRCP-MID 31.6"
- SWING-MID 33°F
- COMF-TOP 97/100
- LOAD-COOL 3,460 CDD
- STN-1 USC00418169
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: San Antonio Stinson, TX ( -0.1 °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.
- San Antonio/sea… (this station) 71°F
- Cold Cuero, TX 71°F
- Near San Antonio Sti…, TX 71°F
- Near Houston Sugarla…, TX 71°F
- Near Dilley, TX 71°F
San Antonio/seaworld 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 · San Antonio/seaworld
San Antonio/seaworld: 82/100 · grade B
San Antonio/seaworld publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for San Antonio/seaworld, not an official NOAA rating. Rankings still use Comfort Score 97/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 294 days/year | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 71.2°F · 3.7° from 67.5°F | 89/100 · A |
| Precipitation balance | 31.6 in · 3.4 from 35 in | 88/100 · A |
| Normal heat + freeze calendar | 128 calendar days | 60/100 · C |
San Antonio/seaworld · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
San Antonio/seaworld is a temperate Köppen climate: Cfa
Coldest-month mean 53.9°F and warmest-month mean 86.4°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
- 86.4°F
- Coldest month
- 53.9°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 San Antonio/seaworld sits across the climate record
Three NOAA fields for San Antonio/seaworld's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 4% warmest
- Among 6,861 stations, San Antonio/seaworld sits in the warmer third of annual means.
- Annual precipitation
- 42nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 87%
- Warmest-to-coldest month gap for San Antonio/seaworld is compact versus 6,861 complete station-years.
How San Antonio/seaworld compares across U.S. station-mapped locations
San Antonio/seaworld's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
97 Top 3% score exceeds 97% 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 65°F (18°C) | 43°F (6°C) | 54°F (12°C) | 2.0" | 0.0" | 4.4 | 0.0 |
| February | 70°F (21°C) | 46°F (8°C) | 58°F (14°C) | 1.8" | 0.0" | 2.5 | 0.3 |
| March | 76°F (24°C) | 53°F (12°C) | 65°F (18°C) | 2.3" | 0.0" | 1.9 | 0.5 |
| April | 83°F (29°C) | 60°F (15°C) | 71°F (22°C) | 2.4" | 0.0" | 0.1 | 4.3 |
| May | 89°F (32°C) | 67°F (19°C) | 78°F (26°C) | 4.0" | 0.0" | 0.0 | 13.3 |
| June | 95°F (35°C) | 73°F (23°C) | 84°F (29°C) | 3.4" | 0.0" | 0.0 | 23.0 |
| July | 97°F (36°C) | 74°F (24°C) | 86°F (30°C) | 2.4" | 0.0" | 0.0 | 27.9 |
| August | 99°F (37°C) | 74°F (24°C) | 86°F (30°C) | 2.5" | 0.0" | 0.0 | 28.7 |
| September | 93°F (34°C) | 70°F (21°C) | 81°F (27°C) | 3.1" | 0.0" | 0.0 | 18.8 |
| October | 85°F (29°C) | 62°F (17°C) | 73°F (23°C) | 3.8" | 0.0" | 0.0 | 6.0 |
| November | 74°F (24°C) | 51°F (11°C) | 63°F (17°C) | 1.9" | 0.0" | 1.0 | 0.0 |
| December | 66°F (19°C) | 44°F (7°C) | 55°F (13°C) | 1.9" | 0.0" | 4.3 | 0.0 |
The year, day by day
The year in San Antonio/seaworld runs from a mild 42°F around January 11 to 99°F at the peak near August 11, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 21 through September 25, covering 128 dates. The broader mild season, normal highs of 70°F or more, runs February 17 to November 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.
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 42°F around January 11.
Where the wet dates fall
The likeliest wet date is January 27, when 26% of years recorded at least a hundredth of an inch. The driest is August 2 at 12%. Summed across the calendar, that is about 76 wet dates a year.
The widest day
August 16 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for San Antonio/seaworld.
Where San Antonio/seaworld Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 128 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
San Antonio/seaworld 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
8.2 days with precipitation
7.1 days with precipitation
8.3 days with precipitation
6.0 days with precipitation
6.7 days with precipitation
6.2 days with precipitation
4.8 days with precipitation
4.1 days with precipitation
6.8 days with precipitation
5.4 days with precipitation
5.1 days with precipitation
7.2 days with precipitation
San Antonio/seaworld spreads its precipitation across the year
Neither half of the year dominates here: June through August take 26% of the annual total and December through February 18%, with neither reaching the 35% that would mark a distinct wet season. San Antonio/seaworld has no dry season to plan around, though it does carry a 32.5°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 4.0" and February 1.8". The three wettest months together take 36% 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 San Antonio/seaworld, it arrives in quantity
31.6" of precipitation falls across only about 76 wet days here, averaging 0.42 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 76 a year, 21% of all days
- Average depth per wet day
- 0.42 inches
- Most wet days
- March, about 8
- Fewest wet days
- August, about 4
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.
San Antonio/seaworld's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
December 9
50% probability date
Last Spring Freeze
February 18
50% probability date
Growing Season
294 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,182
Higher = more heating needed
Cooling Degree Days
3,460
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to San Antonio/seaworld 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 (71°F here).
- Live Oak, FL 71°F · 0.0°F off
- Bouse, AZ 71°F · 0.1°F off
- Crescent City, FL 71°F · 0.1°F off
- Ocala, FL 71°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (31.6" here), excluding temperature-peer places.
- Green Bay, WI 31.6" · 0.0" off
- Minneapolis, MN 31.6" · 0.0" off
- Weston, NE 31.6" · 0.0" off
- Mora, MN 31.7" · 0.1" off
Data-derived climate profile
How San Antonio/seaworld's climate pattern fits together
cooling led · moderate · mid swing
Air-conditioning demand is the clearest thermal signal here. San Antonio/seaworld accumulates 3,460 cooling degree days, more than twice its 1,182 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
San Antonio/seaworld's 31.6 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Recorded annual snowfall is negligible. 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 San Antonio/seaworld's middle-range seasonal profile. The measured spread is 32.5°F. The annual average is 71°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
The frost-free window extends for about 294 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 San Antonio/seaworld'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 San Antonio/seaworld that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about San Antonio/seaworld's climate
How much rain does San Antonio/seaworld get? ▼
How many days above 90°F does San Antonio/seaworld get? ▼
How much energy does heating and cooling require in San Antonio/seaworld? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from San Antonio/seaworld's primary station: SAN ANTONIO/SEAWORLD (USC00418169). 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 San Antonio/seaworld; 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 San Antonio/seaworld 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.