Seymour, TX Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Seymour's primary NOAA station, SEYMOUR 3NW.
The climate verdict for Seymour
Seymour, Texas has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 63°F. It scores 93/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 93% of them.
- 63°F
- average temperature, NOAA 1991-2020 normal
- 93/100
- comfort score, above 93% of station-mapped location scores
- 29.0"
- annual precipitation · 2" snow
- 221 days
- growing season, frost-free days
Seymour: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00418221 · Seymour, TX 63°F mean · 29.0" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 63°F
- RANK-UPPER #5,695
- PHOTO-FINISH ≈ Alamogordo
- PRCP-MID 29.0"
- SWING-MID 43°F
- COMF-TOP 93/100
- LOAD-MIX H/C balanced
- STN-1 USC00418221
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Alamogordo, NM (+ 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.
- Seymour (this station) 63°F
- Hot Brantley Dam, NM 63°F
- Near Alamogordo, NM 63°F
- Near Anniston Metro, AL 63°F
- Near Appling, GA 63°F
Seymour 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 · Seymour
Seymour: 66/100 · grade C
Seymour publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Seymour, not an official NOAA rating. Rankings still use Comfort Score 93/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 63.1°F · 4.4° from 67.5°F | 87/100 · A |
| Precipitation balance | 29.0 in · 6.0 from 35 in | 79/100 · B |
| Frost-free season | 221 days/year | 77/100 · B |
| Snowfall burden | 1.8 inches/year | 77/100 · B |
| Normal heat + freeze calendar | 174 calendar days | 29/100 · F |
Seymour · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Seymour is a temperate Köppen climate: Cfa
Coldest-month mean 41.7°F and warmest-month mean 84.7°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
- 84.7°F
- Coldest month
- 41.7°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 · balanced station
Where Seymour sits across the climate record
Three NOAA fields for Seymour's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 17% warmest
- Among 6,861 stations, Seymour sits in the warmer third of annual means.
- Annual precipitation
- 39th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 49th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Seymour compares across U.S. station-mapped locations
Seymour's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
93 Top 7% score exceeds 93% 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 | 55°F (13°C) | 28°F (-2°C) | 42°F (5°C) | 1.2" | 0.8" | 20.4 | 0.0 |
| February | 59°F (15°C) | 32°F (0°C) | 46°F (8°C) | 1.5" | 0.2" | 13.6 | 0.1 |
| March | 68°F (20°C) | 40°F (4°C) | 54°F (12°C) | 1.9" | 0.0" | 6.3 | 0.6 |
| April | 77°F (25°C) | 48°F (9°C) | 62°F (17°C) | 1.8" | 0.0" | 0.7 | 2.3 |
| May | 84°F (29°C) | 59°F (15°C) | 71°F (22°C) | 3.8" | 0.0" | 0.0 | 8.4 |
| June | 93°F (34°C) | 68°F (20°C) | 80°F (27°C) | 3.8" | 0.0" | 0.0 | 19.1 |
| July | 97°F (36°C) | 72°F (22°C) | 85°F (29°C) | 2.9" | 0.0" | 0.0 | 27.8 |
| August | 97°F (36°C) | 71°F (22°C) | 84°F (29°C) | 2.9" | 0.0" | 0.0 | 25.7 |
| September | 88°F (31°C) | 63°F (17°C) | 75°F (24°C) | 3.2" | 0.0" | 0.0 | 13.3 |
| October | 78°F (26°C) | 51°F (11°C) | 64°F (18°C) | 2.8" | 0.0" | 0.5 | 3.7 |
| November | 65°F (18°C) | 38°F (3°C) | 52°F (11°C) | 1.9" | 0.8" | 7.6 | 0.1 |
| December | 56°F (13°C) | 29°F (-2°C) | 43°F (6°C) | 1.2" | 0.0" | 20.0 | 0.0 |
The year, day by day
Seymour works both ends of the calendar. Normal highs climb to 99°F by July 29 and hold at or above 90°F on 96 dates, then normal lows drop to freezing or below on 78 dates, bottoming at 28°F around January 1.
When the heat sits
Normal highs reach 90°F from June 5 through September 8, covering 96 dates. The broader mild season, normal highs of 70°F or more, runs March 23 to November 2.
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.
The freezing stretch
The normal low stays at or below 32°F into February 17, then returns to freezing around December 2, covering 78 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 26, when 25% of years recorded at least a hundredth of an inch. The driest is January 7 at 13%. Summed across the calendar, that is about 60 wet dates a year.
The widest day
April 6 carries the biggest normal gap between afternoon and dawn, 29°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Seymour.
Where Seymour Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 96 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Seymour 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
Snow: 0.8"
3.9 days with precipitation
Snow: 0.2"
4.2 days with precipitation
4.8 days with precipitation
4.7 days with precipitation
7.2 days with precipitation
6.0 days with precipitation
4.0 days with precipitation
4.9 days with precipitation
5.6 days with precipitation
5.4 days with precipitation
Snow: 0.8"
4.9 days with precipitation
4.1 days with precipitation
Seymour spreads its precipitation across the year
Neither half of the year dominates here: June through August take 33% of the annual total and December through February 13%, with neither reaching the 35% that would mark a distinct wet season. Seymour has no dry season to plan around, though it does carry a 43°F seasonal spread.
The gap between the wettest and driest month still matters: June averages 3.8" and January 1.2". The three wettest months together take 38% 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 Seymour, it arrives in quantity
29.0" of precipitation falls across only about 60 wet days here, averaging 0.49 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 60 a year, 16% of all days
- Average depth per wet day
- 0.49 inches
- Most wet days
- May, about 7
- Fewest wet days
- January, 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.
Snow reaches Seymour, but rarely amounts to much
The normals record 1.8 inches of snow a year here, most likely in January. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 1 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
November 6
50% probability date
Last Spring Freeze
March 30
50% probability date
Growing Season
221 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,040
Higher = more heating needed
Cooling Degree Days
2,384
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Seymour 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 (63°F here).
- Alamogordo, NM 63°F · 0.0°F off
- Appling, GA 63°F · 0.0°F off
- Burneyville, OK 63°F · 0.0°F off
- Grandfield, OK 63°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (29.0" here), excluding temperature-peer places.
- Sterling, KS 29.0" · 0.0" off
- Anacortes, WA 29.0" · 0.0" off
- Friend, NE 29.0" · 0.0" off
- Spirit Lake, IA 29.1" · 0.1" off
Data-derived climate profile
How Seymour's climate pattern fits together
mixed demand · moderate · mid swing
July and January mark the typical warm and cold ends of the calendar in Seymour's middle-range seasonal profile. The measured spread is 43.0°F. The annual average is 63°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Seymour's normal, at 3,040 and 2,384 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
A roughly 221-day frost-free season sits inside this mixed heating-and-cooling profile. Start and end dates matter because both sides of the thermostat register during a normal year.
Seymour's 29.0 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Annual snowfall totals 1.8 inches. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Seymour's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Seymour, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Seymour's climate
How much rain does Seymour get? ▼
How many days above 90°F does Seymour get? ▼
How much energy does heating and cooling require in Seymour? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Seymour's primary station: SEYMOUR 3NW (USC00418221). 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 4866968). Match rule for Seymour: 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 Seymour 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.