Houston Nwso, 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 Houston Nwso's primary NOAA station, HOUSTON NWSO.
The climate verdict for Houston Nwso
Warm-season cooling demand defines Houston Nwso, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 71°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 71°F
- yearly average temperature, NOAA normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 60.2"
- yearly precipitation total
- 317 days
- frost-free growing season
Houston Nwso: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00414333 · Houston Nwso, TX 71°F mean · 60.2" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 71°F
- RANK-WARM #6,587
- PHOTO-FINISH ≈ New Orleans
- PRCP-WET 60.2"
- SWING-NARROW 29°F
- COMF-TOP 80/100
- LOAD-COOL 3,198 CDD
- STN-1 USC00414333
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: New Orleans, LA ( -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.
- Houston Nwso (this station) 71°F
- Cold New Orleans, LA 71°F
- Hot Austwell, TX 71°F
- Near Welder Wildlife…, TX 71°F
- Near Angleton Brazor…, TX 71°F
Houston Nwso 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 · Houston Nwso
Houston Nwso: 75/100 · grade B
Houston Nwso publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Houston Nwso, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 317 days/year | 100/100 · A |
| Annual temperature balance | 70.6°F · 3.1° from 67.5°F | 91/100 · A |
| Snowfall burden | 0.2 inches/year | 89/100 · A |
| Normal heat + freeze calendar | 85 calendar days | 81/100 · B |
| Precipitation balance | 60.2 in · 25.2 from 35 in | 12/100 · F |
Houston Nwso · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Houston Nwso is a temperate Köppen climate: Cfa
Coldest-month mean 54.8°F and warmest-month mean 84.1°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
- 84.1°F
- Coldest month
- 54.8°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 Houston Nwso sits across the climate record
Three NOAA fields for Houston Nwso'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, Houston Nwso sits in the warmer third of annual means.
- Annual precipitation
- Top 5% wettest
- Houston Nwso'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 Houston Nwso is compact versus 6,861 complete station-years.
How Houston Nwso compares across U.S. station-mapped locations
Houston Nwso's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% 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 | 64°F (18°C) | 46°F (8°C) | 55°F (13°C) | 4.8" | 0.0" | 3.6 | 0.0 |
| February | 67°F (20°C) | 50°F (10°C) | 59°F (15°C) | 3.0" | 0.0" | 1.2 | 0.0 |
| March | 73°F (23°C) | 56°F (13°C) | 64°F (18°C) | 3.3" | 0.0" | 0.6 | 0.1 |
| April | 78°F (26°C) | 61°F (16°C) | 70°F (21°C) | 4.2" | 0.0" | 0.0 | 0.2 |
| May | 85°F (29°C) | 69°F (21°C) | 77°F (25°C) | 5.1" | 0.0" | 0.0 | 2.5 |
| June | 90°F (32°C) | 75°F (24°C) | 82°F (28°C) | 6.5" | 0.0" | 0.0 | 14.3 |
| July | 92°F (33°C) | 76°F (24°C) | 84°F (29°C) | 4.4" | 0.0" | 0.0 | 23.0 |
| August | 92°F (34°C) | 76°F (24°C) | 84°F (29°C) | 6.6" | 0.0" | 0.0 | 22.9 |
| September | 88°F (31°C) | 72°F (22°C) | 80°F (27°C) | 7.3" | 0.0" | 0.0 | 11.3 |
| October | 82°F (28°C) | 63°F (17°C) | 72°F (22°C) | 5.8" | 0.0" | 0.0 | 1.5 |
| November | 73°F (23°C) | 53°F (12°C) | 63°F (17°C) | 4.5" | 0.0" | 1.0 | 0.0 |
| December | 66°F (19°C) | 47°F (9°C) | 57°F (14°C) | 4.5" | 0.2" | 2.9 | 0.0 |
The year, day by day
The year in Houston Nwso runs from a mild 45°F around January 6 to 93°F at the peak near August 2, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 13 through September 5, covering 85 dates. The broader mild season, normal highs of 70°F or more, runs February 29 to November 24.
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 45°F around January 6.
Where the wet dates fall
The likeliest wet date is August 31, when 38% of years recorded at least a hundredth of an inch. The driest is May 2 at 23%. Summed across the calendar, that is about 111 wet dates a year.
The widest day
October 24 carries the biggest normal gap between afternoon and dawn, 20°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Houston Nwso.
Where Houston Nwso Stands Nationally
This is one of the wettest normals climates ranked: about 60 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 20°F.
Houston Nwso 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
10.3 days with precipitation
9.1 days with precipitation
8.7 days with precipitation
7.8 days with precipitation
7.4 days with precipitation
10.1 days with precipitation
9.8 days with precipitation
10.4 days with precipitation
10.7 days with precipitation
7.9 days with precipitation
7.9 days with precipitation
Snow: 0.2"
10.5 days with precipitation
Houston Nwso 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 21%, with neither reaching the 35% that would mark a distinct wet season. Houston Nwso has no dry season to plan around, though it does carry an unusually narrow 29.3°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 7.3" and February 3.0". The three wettest months together take 34% 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 Houston Nwso, it arrives in quantity
60.2" of precipitation falls across only about 111 wet days here, averaging 0.54 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 111 a year, 30% of all days
- Average depth per wet day
- 0.54 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.
Snow reaches Houston Nwso, but rarely amounts to much
The normals record 0.2 inches of snow a year here, most likely in December. 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 0 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
December 14
50% probability date
Last Spring Freeze
January 31
50% probability date
Growing Season
317 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,147
Higher = more heating needed
Cooling Degree Days
3,198
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Houston Nwso 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).
- Carefree, AZ 71°F · 0.0°F off
- Tucson, AZ 71°F · 0.0°F off
- New Orleans, LA 71°F · 0.1°F off
- Paauilo, HI 71°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (60.2" here), excluding temperature-peer places.
- Jackson, AL 60.2" · 0.0" off
- Moulton, AL 60.2" · 0.0" off
- Rockford, AL 60.2" · 0.0" off
- Bridgeport, AL 60.2" · 0.0" off
Data-derived climate profile
How Houston Nwso's climate pattern fits together
cooling led · wet · low swing
Warm-season load persists through a relatively even calendar in Houston Nwso. Cooling totals 3,198 degree days, more than double the 1,147 heating measure, and the 29.3°F seasonal range is compact rather than sharply divided.
Warm-season demand is paired with a wet annual normal: 60.2 inches of precipitation at Houston Nwso. Recorded annual snowfall is negligible. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
Houston Nwso's 29.3°F seasonal spread is compact even though precipitation is abundant. August and January mark the typical warm and cold ends of the calendar. The annual average is 71°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 317 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 Houston Nwso'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 Houston Nwso that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Houston Nwso's climate
How much rain does Houston Nwso get? ▼
How many days above 90°F does Houston Nwso 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 Houston Nwso's primary station: HOUSTON NWSO (USC00414333). 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 Houston Nwso; 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 Houston Nwso 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.