Aransas Pass’ winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 91°, a January night drops to 49°, and snow is almost unheard of.
A year in Aransas Pass at a glance
Each month’s typical high and low, and what it brings.
What stands out about Aransas Pass’ climate
Compared with towns across the U.S., with Aransas Pass’ place in Texas beside it.
What a year in Aransas Pass feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from NOAA’s station at Port Aransas, TX, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Aransas Pass’ center in zone 10a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 32°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 34 inches of rain a year
September is the wettest month and February the driest. Rain falls on about 76 days a year. Snow is rare: about 0.3" in a normal year at Rockport, TX, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Aransas Pass
20% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Port Aransas, TX.
Living with Aransas Pass’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10a. Frost comes about 1 winter in 3, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, October, November and December. 1.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Aransas Pass from natural hazards, hurricanes are the largest share (44%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Aransas Pass and its neighbors
Every town next door is within a degree of Aransas Pass in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Aransas Pass’, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Aransas Pass, TX | 49° | 91° | 34" | 0.3" |
| Sierra Madre, CA | 43° | 90° | 28" | 0.0" |
| St. Simons, GA | 43° | 91° | 49" | 0.0" |
| Leesburg, FL | 47° | 91° | 50" | 0.0" |
| Grants Pass, OR | 34° | 90° | 33" | 0.9" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Aransas Pass averaged 1.6° warmer than the 1900s. The biggest change is in February (+2.6°).
A bigger shift than in 66% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Aransas Pass compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Aransas Pass’ place among Texas’.
Aransas Pass weather by month
Highs, lows and precipitation from NOAA’s grid at Aransas Pass’ center; snow, wet days and snow on the ground from Rockport, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 65° | 49° | 2.0" | 0.0" | 8 | 0 | 52° – 62° |
| February | 68° | 53° | 1.7" | 0.0" | 7 | 0 | 53° – 69° |
| March | 73° | 59° | 2.4" | 0.0" | 6 | 0 | 60° – 72° |
| April | 79° | 65° | 1.9" | 0.0" | 6 | 0 | 67° – 76° |
| May | 85° | 72° | 3.7" | 0.0" | 5 | 0 | 75° – 81° |
| June | 89° | 77° | 3.8" | 0.0" | 6 | 0 | 81° – 86° |
| July | 91° | 79° | 2.6" | 0.0" | 5 | 0 | 82° – 87° |
| August | 92° | 79° | 2.4" | 0.0" | 5 | 0 | 83° – 87° |
| September | 89° | 75° | 5.6" | 0.0" | 10 | 0 | 79° – 85° |
| October | 83° | 68° | 3.6" | 0.0" | 7 | 0 | 73° – 80° |
| November | 74° | 59° | 2.6" | 0.0" | 6 | 0 | 61° – 72° |
| December | 67° | 51° | 1.9" | 0.3" | 6 | 0 | 53° – 63° |
| Year | 80° | 65° | 34.1" | 0.3" | 76 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 53° to 69°. August is the most reliable, staying within 4°.
Where Aransas Pass’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Aransas Pass’ center.
- Snow: Rockport, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Port Aransas, TX, 6 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Aransas Pass’ climate
What is the weather like in Aransas Pass?
A typical July afternoon reaches 91°, a January night drops to 49°, and snow is almost unheard of. Milder January nights than 96% of U.S. towns; hotter July afternoons than 81% of U.S. towns.
How cold does it get in Aransas Pass in winter?
January nights average 49°. A night at 32° or below comes in only some winters (0.8 a year on average). In the coldest January of the last 30 years the month averaged 52°.
How much snow does Aransas Pass get?
About 0.3 inches in a normal winter at Rockport, TX, so most winters see none.
How hot does it get in Aransas Pass?
July, with a typical high of 91° and a low of 79°. About 57 days a year reach 90° (Port Aransas, TX).
When is the first and last frost in Aransas Pass?
Most years have no frost at all: a 32° night comes in about 37% of winters at Port Aransas, TX, usually in December or January.
What growing zone is Aransas Pass in?
Zone 10a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 32°.
What is the best time of year to visit Aransas Pass?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Aransas Pass getting warmer?
Yes: 1991–2020 averaged 1.6° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 66% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Aransas Pass.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.