Houston Hobby Airport, Texas climate: Climate normals at a NOAA weather station
Houston Hobby Airport's normal year runs from 46°F January nights to 94°F August afternoons, with 55.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.7°C, January lows of 8°C, August highs of 34°C, 1,413 mm of precipitation a year.
- NOAA stationHouston Hobby Airport
- Station IDUSW00012918
- Location29.64°N 95.28°W
- Elevation44 ft (13 m)
On October 23, the normal high in Houston Hobby Airport is 80°F and the normal low 61°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Houston Hobby Airport.
- Jan 64° 46°
- Feb 68° 50°
- Mar 73° 56°
- Apr 79° 62°
- May 86° 69°
- Jun 91° 75°
- Jul 93° 77°
- Aug 94° 77°
- Sep 89° 73°
- Oct 82° 64°
- Nov 73° 54°
- Dec 66° 48°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Houston Hobby Airport each month?
August is the warmest month, with normal highs of 94°F; January the coldest, with normal lows of 46°F. The most precipitation falls in June (6.09 in), the least in February (2.85 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 64°F | 46°F | 55.0°F | 4.09 | 10 | <1 | 2 | 10 h 30 min |
| February | 68°F | 50°F | 58.8°F | 2.85 | 9 | <1 | 1 | 11 h 10 min |
| March | 73°F | 56°F | 64.7°F | 3.28 | 8 | <1 | <1 | 12 h |
| April | 79°F | 62°F | 70.5°F | 4.08 | 8 | <1 | <1 | 12 h 50 min |
| May | 86°F | 69°F | 77.6°F | 5.42 | 8 | 7 | <1 | 13 h 40 min |
| June | 91°F | 75°F | 82.9°F | 6.09 | 10 | 21 | <1 | 14 h |
| July | 93°F | 77°F | 84.8°F | 4.59 | 9 | 26 | <1 | 13 h 50 min |
| August | 94°F | 77°F | 85.1°F | 5.44 | 10 | 26 | <1 | 13 h 10 min |
| September | 89°F | 73°F | 81.1°F | 5.76 | 10 | 16 | <1 | 12 h 20 min |
| October | 82°F | 64°F | 73.0°F | 5.78 | 7 | 3 | <1 | 11 h 30 min |
| November | 73°F | 54°F | 63.3°F | 3.90 | 8 | <1 | <1 | 10 h 40 min |
| December | 66°F | 48°F | 56.9°F | 4.34 | 10 | <1 | 1 | 10 h 20 min |
| Year (annual) | 80°F | 63°F | 71.1°F | 55.62 | 107 | 101 | 4 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 8°C | 12.8°C | 104 mm |
| February | 20°C | 10°C | 14.9°C | 72 mm |
| March | 23°C | 13°C | 18.2°C | 83 mm |
| April | 26°C | 17°C | 21.4°C | 104 mm |
| May | 30°C | 21°C | 25.3°C | 138 mm |
| June | 33°C | 24°C | 28.3°C | 155 mm |
| July | 34°C | 25°C | 29.3°C | 117 mm |
| August | 34°C | 25°C | 29.5°C | 138 mm |
| September | 32°C | 23°C | 27.3°C | 146 mm |
| October | 28°C | 18°C | 22.8°C | 147 mm |
| November | 23°C | 12°C | 17.4°C | 99 mm |
| December | 19°C | 9°C | 13.8°C | 110 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00012918; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Houston Hobby Airport?
Normal highs sit between 65°F and 85°F in February, March, April, October, November and December. Of those, October has the fewest days with rain (7).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00012918.
When is the last frost at Houston Hobby Airport?
In Houston Hobby Airport, the last spring frost (32°F) comes after January 30 in half of years and after March 1 in one year in ten; the first autumn frost comes before December 28 in half of years and before November 27 in one year in ten. A night at 32°F or colder comes at all in 86% of years here (NOAA).
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- January 301 year in 10 after March 1; 9 in 10 after December 29
- First autumn frost, half of years before
- December 281 year in 10 before November 27; 9 in 10 before January 27
NOAA puts the median frost-free season at 330 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after January 17 in half of springs and before January 8 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Houston Hobby Airport in zone 9b in ZIP code 77061, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 9b: the coldest night of a typical year reaches 28°F (30 complete years).
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00012918; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Houston Hobby Airport?
In a normal year in Houston Hobby Airport, 101 days a year reach 90°F (3 of them 100°F or more), 4 nights fall to 32°F or colder and 107 days bring measurable precipitation.
- Days at 90°F or more
- 101a normal year
- Days at 100°F or more
- 3a normal year
- Nights at 32°F or colder
- 4a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 107a normal year
The highest temperature in this station's record (since 1930) is 109°F, on August 27, 2023; the lowest is 5°F, on January 23, 1940.
The wettest calendar year on that record is 1979, with 83.02 in; the snowiest season is 1959–60, with 4.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00012918; records: ACIS (NOAA Regional Climate Centers), station USW00012918. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Houston Hobby Airport?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds at Houston Hobby Airport, 4.7 kWh per square metre a day. October is the sunniest month (83%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 2.9 |
| February | 66% | 3.3 |
| March | 72% | 4.5 |
| April | 74% | 5.3 |
| May | 79% | 6.0 |
| June | 81% | 6.3 |
| July | 81% | 6.1 |
| August | 82% | 5.8 |
| September | 80% | 5.0 |
| October | 83% | 4.4 |
| November | 77% | 3.3 |
| December | 70% | 2.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Houston Hobby Airport record?
A normal year at Houston Hobby Airport brings 1,098 heating degree days, 80% fewer than the median U.S. place (5,373), and 3,362 cooling degree days, 3.7 times the median (908). One month needs 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,861 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 330 | 19 |
| February | 206 | 33 |
| March | 101 | 90 |
| April | 22 | 189 |
| May | 1 | 391 |
| June | 0 | 538 |
| July | 0 | 612 |
| August | 0 | 623 |
| September | 0 | 483 |
| October | 19 | 267 |
| November | 134 | 83 |
| December | 286 | 33 |
| Year (annual) | 1,098 | 3,362 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00012918. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Houston Hobby Airport been warmer than normal?
2025 averaged 73.3°F, 2.2°F above the 1991-2020 normal of 71.1°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.0°F | +1.9°F | 49.43 |
| 2022 | 72.0°F | +0.9°F | 32.29 |
| 2023 | 74.2°F | +3.1°F | 39.37 |
| 2024 | 74.2°F | +3.1°F | 51.55 |
| 2025 | 73.3°F | +2.2°F | 42.82 |
Over 83 complete years from 1931 to 2025, the station's annual mean temperature rose at a fitted 3.4°F per century (+0.19°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00012918; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Houston Hobby Airport's climate compare?
Houston Hobby Airport is warmer than 277 of the 321 places with their own NOAA record in Texas, and wetter than 296. Across the 7,247 U.S. stations with normals, its annual mean of 71.1°F is warmer than 96%.
In the Köppen classification computed from these normals, Houston Hobby Airport is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Houston Hobby Airport share this climate record?
10 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Pasadena, TXalso near: Houston Clover Field (11 mi, 71.3°F a year); League City (13 mi, 70.6°F a year)149,617 people · 8 mi E
- Deer Park, TX34,495 people · 11 mi E
- Cloverleaf, TX24,630 people · 12 mi NE
- Bellaire, TX17,439 people · 12 mi NW
- South Houston, TX16,146 people · 4 mi NE
- West University Place, TX15,149 people · 10 mi NW
- Galena Park, TX10,438 people · 8 mi N
- Jacinto City, TX9,431 people · 9 mi N
- Southside Place, TX1,908 people · 10 mi NW
- Brookside Village, TX1,613 people · 4 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Houston Hobby Airport's climate
What is the coldest month at Houston Hobby Airport?
January, with a normal high of 64°F and a normal low of 46°F. The warmest is August (94°F by day, 77°F at night).
What is the rainiest month at Houston Hobby Airport?
June, with 6.09 in of precipitation in a normal year; the driest is February with 2.85 in.
What plant hardiness zone is Houston Hobby Airport in?
The USDA's 2023 map puts Houston Hobby Airport in zone 9b in ZIP code 77061, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 28°F (30 years, 1991-2020): zone 9b.
How late can frost come at Houston Hobby Airport?
In half of years the last 32°F night comes after January 30; in one year in ten it comes after March 1. Waiting until March 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Houston Clover Field, TX9 miles from this station, 71.3°F a year
- League City, TX17 miles from this station, 70.6°F a year
- Alvin, TX19 miles from this station, 69.3°F a year
- Sugar Land, TX22 miles from this station, 70.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made