Sealy, TX Climate: Temperature by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Sealy's primary NOAA station, SEALY.
The climate verdict for Sealy
Warm-season cooling demand defines Sealy, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 69°F. July is the warmest month at 84°F and January the coldest at 53°F.
- 69°F
- average temperature, NOAA 1991-2020 normal
- 275 days
- frost-free days per growing season
Sealy: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00418160 · Sealy, TX 69°F mean
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-UNK · SWING-MID · COMF-UNK · LOAD-COOL · STN-1 · BOOK-PART
- TEMP-MILD 69°F
- RANK-WARM #6,449
- PHOTO-FINISH ≈ Lafayette Rgnl
- PRCP-UNK Rain n/a
- SWING-MID 31°F
- COMF-UNK Comfort n/a
- LOAD-COOL 3,026 CDD
- STN-1 USC00418160
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: Lafayette Rgnl, LA (+ 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.
- Hot Hackberry, LA 70°F
- Near Beaumont City, TX 70°F
- Sealy (this station) 69°F
- Cold Randolph, TX 69°F
- Near Lafayette Rgnl, LA 69°F
Sealy 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 · Sealy
Sealy: 84/100 · grade B
Sealy publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Sealy, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 275 days/year | 96/100 · A |
| Annual temperature balance | 69.4°F · 1.9° from 67.5°F | 93/100 · A |
| Normal heat + freeze calendar | 111 calendar days | 70/100 · B |
Sealy · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · cooling-led station
Where Sealy sits across the climate record
Available NOAA 1991–2020 fields for Sealy are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- Top 6% warmest
- Among 6,861 stations, Sealy sits in the warmer third of annual means.
- Seasonal temperature swing
- Narrower than 88%
- Warmest-to-coldest month gap for Sealy is compact versus 6,861 complete station-years.
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) | 42°F (6°C) | 53°F (12°C) | N/A | 4.7 | 0.0 |
| February | 68°F (20°C) | 45°F (7°C) | 56°F (14°C) | N/A | 1.6 | 0.0 |
| March | 74°F (23°C) | 52°F (11°C) | 63°F (17°C) | N/A | 0.9 | 0.1 |
| April | 79°F (26°C) | 58°F (14°C) | 69°F (20°C) | N/A | 0.0 | 0.6 |
| May | 86°F (30°C) | 66°F (19°C) | 76°F (24°C) | N/A | 0.0 | 7.2 |
| June | 92°F (34°C) | 72°F (22°C) | 82°F (28°C) | N/A | 0.0 | 20.4 |
| July | 95°F (35°C) | 74°F (23°C) | 84°F (29°C) | N/A | 0.0 | 28.7 |
| August | 95°F (35°C) | 73°F (23°C) | 84°F (29°C) | N/A | 0.0 | 26.5 |
| September | 90°F (32°C) | 69°F (21°C) | 80°F (26°C) | N/A | 0.0 | 17.0 |
| October | 82°F (28°C) | 59°F (15°C) | 71°F (22°C) | N/A | 0.1 | 4.3 |
| November | 73°F (23°C) | 50°F (10°C) | 61°F (16°C) | N/A | 1.5 | 0.2 |
| December | 66°F (19°C) | 44°F (6°C) | 55°F (13°C) | N/A | 3.9 | 0.0 |
The year, day by day
The year in Sealy runs from a mild 42°F around January 5 to 96°F at the peak near July 29, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 31 through September 18, covering 111 dates. The broader mild season, normal highs of 70°F or more, runs February 27 to November 26.
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 5.
The widest day
October 14 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Sealy.
Where Sealy Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 111 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Sealy 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
Frost Dates & Growing Season
First Fall Freeze
November 30
50% probability date
Last Spring Freeze
February 28
50% probability date
Growing Season
275 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,379
Higher = more heating needed
Cooling Degree Days
3,026
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Sealy 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).
- Galliano, LA 69°F · 0.0°F off
- Panama City, FL 69°F · 0.0°F off
- Gainesville, FL 70°F · 0.1°F off
- Hackberry, LA 70°F · 0.1°F off
Data-derived climate profile
How Sealy's climate pattern fits together
cooling led · mid swing
Air-conditioning demand is the clearest thermal signal here. Sealy accumulates 3,026 cooling degree days, more than twice its 1,379 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
A moisture-range label is withheld because Sealy's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
July and January mark the typical warm and cold ends of the calendar in Sealy's middle-range seasonal profile. The measured spread is 31.4°F. The annual average is 69°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
The frost-free window extends for about 275 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 Sealy'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 Sealy that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Sealy's climate
How many days above 90°F does Sealy get? ▼
How much energy does heating and cooling require in Sealy? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Sealy's primary station: SEALY (USC00418160). 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 4866464). Match rule for Sealy: 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 Sealy 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.