Texas City, Texas climate: NOAA's gridded normals for the city, beside the nearest station records
NOAA's gridded 1991-2020 normals put Texas City's center at January lows of 47°F and July highs of 90°F, a yearly mean of 70.4°F and 53.9 inches of precipitation. No NOAA station keeps a record under the city's name. The nearest station record, Galveston (11 miles S, 5 ft), has January lows of 49°F and July highs of 91°F.
57,875 people (Census Bureau 2024). Distances and directions are from the city's center.
- Jan 62° 47°
- Feb 65° 51°
- Mar 70° 57°
- Apr 76° 63°
- May 82° 71°
- Jun 88° 76°
- Jul 90° 78°
- Aug 90° 78°
- Sep 87° 74°
- Oct 80° 66°
- Nov 71° 56°
- Dec 64° 49°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
The months above are NOAA's gridded normals at Texas City's center.
What is each month like in Texas City?
NOAA's grid estimates the normals every 5 km or so from the stations around each point, terrain included. It smooths between stations, so night lows at the heart of a large city can run warmer than the grid shows: at five big-city airports we compared, the grid's highs were within about 1°F of the station and its lows 1-6°F cooler. The nearest record's high and low are beside each month.
| Month | High | Low | Mean | Precip. | Galveston high | Galveston low |
|---|---|---|---|---|---|---|
| January | 62°F | 47°F | 54.3°F | 4.44 | 63°F | 49°F |
| February | 65°F | 51°F | 57.7°F | 2.89 | 66°F | 52°F |
| March | 70°F | 57°F | 63.3°F | 3.24 | 72°F | 58°F |
| April | 76°F | 63°F | 69.4°F | 3.56 | 78°F | 65°F |
| May | 82°F | 71°F | 76.4°F | 4.47 | 84°F | 72°F |
| June | 88°F | 76°F | 82.0°F | 5.47 | 90°F | 78°F |
| July | 90°F | 78°F | 83.9°F | 4.38 | 91°F | 80°F |
| August | 90°F | 78°F | 84.2°F | 5.35 | 92°F | 80°F |
| September | 87°F | 74°F | 80.6°F | 6.32 | 89°F | 76°F |
| October | 80°F | 66°F | 73.0°F | 5.24 | 82°F | 69°F |
| November | 71°F | 56°F | 63.5°F | 4.14 | 72°F | 59°F |
| December | 64°F | 49°F | 56.7°F | 4.41 | 66°F | 52°F |
In metric: a yearly mean of 21.3°C, January lows of 8°C, July highs of 32°C and 1,370 mm of precipitation a year.
Source: NOAA NCEI U.S. Monthly Gridded Climate Normals 1991-2020 (nClimGrid, accession 0245564); NOAA NCEI 1991-2020 station normals. The grid cell holding the city's Census center point.
What do the station records around Texas City say?
Each row is a NOAA station's own 1991-2020 normals, with the snow and frost dates the grid does not give. A record downhill or nearer the coast than the city can run warmer, one uphill cooler: compare the elevations.
| Record | Where | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| GalvestonGalveston Scholes Field | 11 mi S | 5 ft | 72.3°F | 49°F | 91°F | 47.2 | 0 | January 18 |
| League CityHouston Nwso | 12 mi W | 19 ft | 70.6°F | 46°F | 92°F | 60.2 | 0 | January 31 |
| Alvin | 21 mi W | 28 ft | 69.3°F | 44°F | 91°F | 55.1 | 0 | February 14 |
Source: NOAA NCEI 1991-2020 U.S. Climate Normals; place center and population: Census Bureau 2024. Last frost: the median last spring date of 32°F.
How much snow, how late a frost, what zone and how much sun in Texas City?
NOAA's grid gives no snow, frost dates or records, so these come from the nearest station record, Galveston (11 miles S, 5 ft). It gets 0 inches of snow in a normal year. The last spring frost (32°F) comes after January 18 in half of years and the first autumn frost before January 7. Its record high is 104°F (2000) and its record low 8°F (1899), on the National Weather Service's long record for the area (kept since 1874).
The USDA's 2023 Plant Hardiness Zone Map puts Texas City in zones 9b to 10a across its 5 ZIP code areas.
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area (4.7 kWh per square metre a day, NASA POWER 2001-2020); June is the sunniest month (84%) and February the cloudiest (67%).
Galveston's page has its months, frost probabilities, records by month and recent years. NOAA's grid has monthly figures only, so there are no day-by-day month pages for Texas City; the nearest record's month pages have them.
Source: NOAA NCEI 1991-2020 normals, station USW00012923; records: ACIS; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; sunshine: NASA POWER.
How does the climate vary across Texas City, ZIP code by ZIP code?
5 ZIP code areas lie wholly or partly in Texas City. On NOAA's grid 77590 is the warmest (70.5°F a year) and 77539 the coolest (70.2°F), so the city is nearly uniform. Each row also names the nearest station record and its frost dates.
| ZIP code | Zone | Year | Jan low | Jul high | Precip. | Nearest record | Last frost | First frost |
|---|---|---|---|---|---|---|---|---|
| 77518 | 9b | 70.2°F | 46°F | 90°F | 54.7 | League City (6 mi) | January 31 | December 14 |
| 77539 | 9b | 70.2°F | 46°F | 91°F | 53.9 | League City (4 mi) | January 31 | December 14 |
| 77568 | 9b | 70.3°F | 46°F | 90°F | 53.3 | League City (9 mi) | January 31 | December 14 |
| 77590 | 10a | 70.5°F | 47°F | 90°F | 53.6 | Galveston (8 mi) | January 18 | January 7 |
| 77591 | 9b | 70.3°F | 46°F | 90°F | 53.6 | League City (7 mi) | January 31 | December 14 |
Source: Census Bureau 2020 ZCTA-to-place relationship file and ZCTA centers; NOAA NCEI gridded and station normals, 1991-2020. A ZIP area counts when at least a tenth of its land (and 0.5 km²) is in the city; its figures are the grid cell at its center; frost dates are the nearest record's medians of 32°F.