Alvin, TX 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 Alvin's primary NOAA station, ALVIN.
The climate verdict for Alvin
Warm-season cooling demand defines Alvin, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 69°F. It scores 87/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 87% of them.
- 69°F
- average temperature, NOAA 1991-2020 normal
- 87/100
- comfort score, above 87% of station-mapped location scores
- 55.1"
- yearly precipitation total
- 294 days
- growing season, frost-free days
Alvin: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00410204 · Alvin, TX 69°F mean · 55.1" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-MILD 69°F
- RANK-WARM #6,449
- PHOTO-FINISH ≈ Brunswick Malco…
- PRCP-WET 55.1"
- SWING-NARROW 29°F
- COMF-TOP 87/100
- LOAD-COOL 2,868 CDD
- STN-1 USC00410204
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Brunswick Malcolm Mckinnon, GA ( -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.
- Alvin (this station) 69°F
- Cold Brunswick Malco…, GA 69°F
- Hot Panama City, FL 69°F
- Near Dauphin Island, AL 69°F
- Near Galliano, LA 69°F
Alvin 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 · Alvin
Alvin: 79/100 · grade B
Alvin publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Alvin, not an official NOAA rating. Rankings still use Comfort Score 87/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 294 days/year | 100/100 · A |
| Annual temperature balance | 69.3°F · 1.8° from 67.5°F | 94/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Normal heat + freeze calendar | 76 calendar days | 83/100 · B |
| Precipitation balance | 55.1 in · 20.1 from 35 in | 28/100 · F |
Alvin · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Alvin is a temperate Köppen climate: Cfa
Coldest-month mean 53.4°F and warmest-month mean 82.5°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
- 82.5°F
- Coldest month
- 53.4°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 Alvin sits across the climate record
Three NOAA fields for Alvin's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 6% warmest
- Among 6,861 stations, Alvin sits in the warmer third of annual means.
- Annual precipitation
- Top 11% wettest
- Alvin's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 91%
- Warmest-to-coldest month gap for Alvin is compact versus 6,861 complete station-years.
How Alvin compares across U.S. station-mapped locations
Alvin's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 13% score exceeds 87% 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%). This entry sits in this band.
- 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 | 63°F (17°C) | 44°F (6°C) | 53°F (12°C) | 4.9" | 0.0" | 3.5 | 0.0 |
| February | 67°F (19°C) | 48°F (9°C) | 57°F (14°C) | 3.0" | 0.0" | 1.5 | 0.0 |
| March | 73°F (23°C) | 54°F (12°C) | 63°F (17°C) | 3.1" | 0.0" | 0.7 | 0.1 |
| April | 78°F (25°C) | 60°F (15°C) | 69°F (20°C) | 4.2" | 0.0" | 0.0 | 1.0 |
| May | 85°F (29°C) | 68°F (20°C) | 76°F (24°C) | 4.6" | 0.0" | 0.0 | 3.6 |
| June | 89°F (32°C) | 72°F (22°C) | 81°F (27°C) | 6.0" | 0.0" | 0.0 | 14.2 |
| July | 91°F (33°C) | 74°F (23°C) | 83°F (28°C) | 4.2" | 0.0" | 0.0 | 22.6 |
| August | 91°F (33°C) | 74°F (23°C) | 83°F (28°C) | 5.6" | 0.0" | 0.0 | 22.6 |
| September | 89°F (31°C) | 70°F (21°C) | 80°F (26°C) | 5.4" | 0.0" | 0.0 | 13.0 |
| October | 81°F (27°C) | 61°F (16°C) | 71°F (22°C) | 5.3" | 0.0" | 0.0 | 0.8 |
| November | 73°F (23°C) | 52°F (11°C) | 62°F (17°C) | 4.3" | 0.0" | 0.7 | 0.0 |
| December | 65°F (18°C) | 45°F (7°C) | 55°F (13°C) | 4.5" | 0.0" | 3.1 | 0.0 |
The year, day by day
The year in Alvin runs from a mild 43°F around January 8 to 91°F at the peak near August 14, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 25 through September 8, covering 76 dates. The broader mild season, normal highs of 70°F or more, runs March 2 to November 22.
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 43°F around January 8.
Where the wet dates fall
The likeliest wet date is September 3, when 39% of years recorded at least a hundredth of an inch. The driest is May 1 at 21%. Summed across the calendar, that is about 110 wet dates a year.
The widest day
October 28 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Alvin.
Where Alvin Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 76 days a year, more than four out of five ranked stations record.
The normal water year runs well above the national norm at roughly 55 inches.
Alvin earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
9.7 days with precipitation
10.3 days with precipitation
8.8 days with precipitation
7.0 days with precipitation
6.6 days with precipitation
9.2 days with precipitation
10.1 days with precipitation
9.9 days with precipitation
11.3 days with precipitation
7.5 days with precipitation
7.7 days with precipitation
10.6 days with precipitation
Alvin spreads its precipitation across the year
Neither half of the year dominates here: June through August take 29% of the annual total and December through February 22%, with neither reaching the 35% that would mark a distinct wet season. Alvin has no dry season to plan around, though it does carry an unusually narrow 29.1°F seasonal spread.
The gap between the wettest and driest month still matters: June averages 6.0" and February 3.0". 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 Alvin, it arrives in quantity
55.1" of precipitation falls across only about 109 wet days here, averaging 0.51 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 109 a year, 30% of all days
- Average depth per wet day
- 0.51 inches
- Most wet days
- September, about 11
- Fewest wet days
- May, about 7
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.
Alvin'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 5
50% probability date
Last Spring Freeze
February 14
50% probability date
Growing Season
294 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,273
Higher = more heating needed
Cooling Degree Days
2,868
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Alvin 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 (69°F here).
- Fargo, GA 69°F · 0.0°F off
- Jacksonville, FL 69°F · 0.0°F off
- Perry, FL 69°F · 0.0°F off
- Dauphin Island, AL 69°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (55.1" here), excluding temperature-peer places.
- Clarendon, AR 55.1" · 0.0" off
- Broken Bow, OK 55.1" · 0.0" off
- Rome, GA 55.1" · 0.0" off
- Paris, TN 55.0" · 0.0" off
Data-derived climate profile
How Alvin's climate pattern fits together
cooling led · wet · low swing
Warm-season load persists through a relatively even calendar in Alvin. Cooling totals 2,868 degree days, more than double the 1,273 heating measure, and the 29.1°F seasonal range is compact rather than sharply divided.
Warm-season demand is paired with a wet annual normal: 55.1 inches of precipitation at Alvin. Recorded annual snowfall is negligible. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
Alvin's 29.1°F seasonal spread is compact even though precipitation is abundant. July and January mark the typical warm and cold ends of the calendar. The annual average is 69°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
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 Alvin'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 Alvin that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Alvin's climate
How much rain does Alvin get? ▼
How many days above 90°F does Alvin get? ▼
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Alvin's primary station: ALVIN (USC00410204). 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 4802272). Match rule for Alvin: 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 Alvin 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.