Armstrong, TX Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Armstrong's primary NOAA station, ARMSTRONG 4SE.
The climate verdict for Armstrong
Warm-season cooling demand defines Armstrong, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 73°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.
- 73°F
- yearly average temperature, NOAA normal
- 96/100
- comfort score, above 96% of station-mapped location scores
- 28.1"
- yearly precipitation total
- 286 days
- frost-free growing season
Armstrong: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00410345 · Armstrong, TX 73°F mean · 28.1" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 73°F
- RANK-WARM #6,655
- PHOTO-FINISH ≈ Kingsville
- PRCP-MID 28.1"
- SWING-NARROW 28°F
- COMF-TOP 96/100
- LOAD-COOL 3,861 CDD
- STN-1 USC00410345
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Kingsville, 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.
- Armstrong (this station) 73°F
- Hot La Joya, TX 73°F
- Near Kingsville, TX 73°F
- Near Kingsville Naas, TX 73°F
- Near Mccook, TX 73°F
Armstrong 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 · Armstrong
Armstrong: 71/100 · grade B
Armstrong publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Armstrong, not an official NOAA rating. Rankings still use Comfort Score 96/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 286 days/year | 99/100 · A |
| Annual temperature balance | 73.2°F · 5.7° from 67.5°F | 82/100 · B |
| Precipitation balance | 28.1 in · 6.9 from 35 in | 75/100 · B |
| Normal heat + freeze calendar | 150 calendar days | 46/100 · D |
Armstrong · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Armstrong is a temperate Köppen climate: Cfa
Coldest-month mean 57.3°F and warmest-month mean 85.3°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
- 85.3°F
- Coldest month
- 57.3°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 Armstrong sits across the climate record
Three NOAA fields for Armstrong's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 3% warmest
- Among 6,861 stations, Armstrong sits in the warmer third of annual means.
- Annual precipitation
- 38th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 93%
- Warmest-to-coldest month gap for Armstrong is compact versus 6,861 complete station-years.
How Armstrong compares across U.S. station-mapped locations
Armstrong'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 | 70°F (21°C) | 45°F (7°C) | 57°F (14°C) | 1.1" | 3.5 | 0.2 |
| February | 75°F (24°C) | 50°F (10°C) | 62°F (17°C) | 1.3" | 2.5 | 1.6 |
| March | 80°F (26°C) | 55°F (13°C) | 67°F (20°C) | 1.3" | 0.5 | 3.9 |
| April | 86°F (30°C) | 61°F (16°C) | 74°F (23°C) | 1.5" | 0.0 | 10.9 |
| May | 91°F (33°C) | 69°F (20°C) | 80°F (27°C) | 2.9" | 0.0 | 21.0 |
| June | 96°F (35°C) | 72°F (22°C) | 84°F (29°C) | 3.2" | 0.0 | 28.4 |
| July | 96°F (36°C) | 73°F (23°C) | 85°F (29°C) | 2.5" | 0.0 | 28.9 |
| August | 98°F (36°C) | 73°F (23°C) | 85°F (30°C) | 2.5" | 0.0 | 30.0 |
| September | 94°F (34°C) | 70°F (21°C) | 82°F (28°C) | 5.2" | 0.0 | 24.2 |
| October | 88°F (31°C) | 62°F (17°C) | 75°F (24°C) | 3.3" | 0.0 | 17.0 |
| November | 79°F (26°C) | 54°F (12°C) | 66°F (19°C) | 2.0" | 0.7 | 2.9 |
| December | 73°F (23°C) | 48°F (9°C) | 60°F (16°C) | 1.3" | 3.3 | 0.3 |
The year, day by day
The year in Armstrong runs from a mild 44°F around January 9 to 98°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 13 through October 9, covering 150 dates. The broader mild season, normal highs of 70°F or more, runs January 22 to December 29.
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 44°F around January 9.
The widest day
October 19 carries the biggest normal gap between afternoon and dawn, 26°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Armstrong.
Where Armstrong Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 150 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Armstrong 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
Armstrong spreads its precipitation across the year
Neither half of the year dominates here: June through August take 30% of the annual total and December through February 13%, with neither reaching the 35% that would mark a distinct wet season. Armstrong has no dry season to plan around, though it does carry an unusually narrow 28°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 5.2" and January 1.1". The three wettest months together take 42% 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.
Frost Dates & Growing Season
First Fall Freeze
December 5
50% probability date
Last Spring Freeze
February 22
50% probability date
Growing Season
286 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
853
Higher = more heating needed
Cooling Degree Days
3,861
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Armstrong 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 (73°F here).
- Yuma, AZ 73°F · 0.0°F off
- Litchfield Park, AZ 73°F · 0.1°F off
- Bartow, FL 73°F · 0.1°F off
- Melbourne, FL 73°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (28.1" here), excluding temperature-peer places.
- Russell, KS 28.1" · 0.0" off
- Seiling, OK 28.1" · 0.0" off
- Vermillion, SD 28.0" · 0.1" off
- Benson, MN 28.1" · 0.1" off
Data-derived climate profile
How Armstrong's climate pattern fits together
cooling led · moderate · low swing
Warm-season load persists through a relatively even calendar in Armstrong. Cooling totals 3,861 degree days, more than double the 853 heating measure, and the 28.0°F seasonal range is compact rather than sharply divided.
Armstrong's 28.1 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.
Temperature varies within a narrow 28.0°F band across the normal year. August and January mark the typical warm and cold ends of the calendar. The annual average is 73°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
The frost-free window extends for about 286 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 Armstrong'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 Armstrong that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Armstrong's climate
How much rain does Armstrong get? ▼
How many days above 90°F does Armstrong get? ▼
How much energy does heating and cooling require in Armstrong? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Armstrong's primary station: ARMSTRONG 4SE (USC00410345). 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 Armstrong; 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 Armstrong 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.