Aransas Wildlife Refuge, Texas climate: Climate normals at a NOAA weather station
Aransas Wildlife Refuge's normal year runs from 44°F January nights to 90°F August afternoons, with 40.9 inches of precipitation and less than an inch of snow (0.3 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.2°C, January lows of 7°C, August highs of 32°C, 1,040 mm of precipitation a year.
- NOAA stationAransas Wildlife Refuge
- Station IDUSC00410305
- Location28.31°N 96.80°W
- Elevation15 ft (5 m)
On October 14, the normal high in Aransas Wildlife Refuge is 82°F and the normal low 66°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Aransas Wildlife Refuge.
- Jan 64° 44°
- Feb 66° 49°
- Mar 72° 55°
- Apr 77° 63°
- May 82° 71°
- Jun 88° 76°
- Jul 90° 76°
- Aug 90° 77°
- Sep 87° 72°
- Oct 81° 65°
- Nov 73° 56°
- Dec 66° 47°
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 Aransas Wildlife Refuge each month?
August is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 44°F. The most precipitation falls in September (5.41 in), the least in April (1.91 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 64°F | 44°F | 53.9°F | 3.09 | 8 | <1 | 2 | 10 h 30 min |
| February | 66°F | 49°F | 57.7°F | 2.25 | 8 | <1 | 1 | 11 h 10 min |
| March | 72°F | 55°F | 63.5°F | 3.25 | 6 | <1 | <1 | 12 h |
| April | 77°F | 63°F | 69.9°F | 1.91 | 5 | <1 | <1 | 12 h 50 min |
| May | 82°F | 71°F | 76.6°F | 4.16 | 5 | <1 | <1 | 13 h 30 min |
| June | 88°F | 76°F | 81.8°F | 3.38 | 6 | 9 | <1 | 14 h |
| July | 90°F | 76°F | 83.0°F | 3.22 | 6 | 18 | <1 | 13 h 50 min |
| August | 90°F | 77°F | 83.4°F | 3.44 | 6 | 22 | <1 | 13 h 10 min |
| September | 87°F | 72°F | 79.6°F | 5.41 | 9 | 10 | <1 | 12 h 20 min |
| October | 81°F | 65°F | 73.1°F | 4.81 | 6 | 1 | <1 | 11 h 30 min |
| November | 73°F | 56°F | 64.2°F | 3.41 | 6 | <1 | <1 | 10 h 50 min |
| December | 66°F | 47°F | 56.2°F | 2.60 | 8 | <1 | 2 | 10 h 20 min |
| Year (annual) | 78°F | 63°F | 70.2°F | 40.93 | 78 | 60 | 7 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 7°C | 12.2°C | 78 mm |
| February | 19°C | 10°C | 14.3°C | 57 mm |
| March | 22°C | 13°C | 17.5°C | 83 mm |
| April | 25°C | 17°C | 21.1°C | 49 mm |
| May | 28°C | 22°C | 24.8°C | 106 mm |
| June | 31°C | 24°C | 27.7°C | 86 mm |
| July | 32°C | 25°C | 28.3°C | 82 mm |
| August | 32°C | 25°C | 28.6°C | 87 mm |
| September | 31°C | 22°C | 26.4°C | 137 mm |
| October | 27°C | 18°C | 22.8°C | 122 mm |
| November | 23°C | 13°C | 17.9°C | 87 mm |
| December | 19°C | 8°C | 13.4°C | 66 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00410305; 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 Aransas Wildlife Refuge?
Normal highs sit between 65°F and 85°F in February, March, April, May, October, November and December. Of those, April has the fewest days with rain (5).
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 USC00410305.
When is the last frost at Aransas Wildlife Refuge?
In Aransas Wildlife Refuge, the last spring frost (32°F) comes after February 7 in half of years and after March 11 in one year in ten; the first autumn frost comes before December 13 in half of years and before November 22 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- February 71 year in 10 after March 11; 9 in 10 after January 2
- First autumn frost, half of years before
- December 131 year in 10 before November 22; 9 in 10 before January 13
NOAA puts the median frost-free season at 306 days, and the season without a hard freeze (28°F) at 340 days.
A hard freeze (28°F) comes after January 27 in half of springs and before December 29 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Aransas Wildlife Refuge in zone 9b in ZIP code 77950, the nearest ZIP area.
Frost dates for every NOAA station in Texas · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00410305; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Aransas Wildlife Refuge?
In a normal year in Aransas Wildlife Refuge, 60 days a year reach 90°F, 7 nights fall to 32°F or colder and 78 days bring measurable precipitation.
- Days at 90°F or more
- 60a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 7a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 78a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00410305.
How sunny is it at Aransas Wildlife Refuge?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds at Aransas Wildlife Refuge, 4.9 kWh per square metre a day. August is the sunniest month (87%) and February the cloudiest (68%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 70% | 3.0 |
| February | 68% | 3.5 |
| March | 73% | 4.6 |
| April | 76% | 5.5 |
| May | 82% | 6.2 |
| June | 86% | 6.7 |
| July | 86% | 6.5 |
| August | 87% | 6.3 |
| September | 82% | 5.2 |
| October | 84% | 4.6 |
| November | 79% | 3.5 |
| December | 71% | 2.7 |
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 Aransas Wildlife Refuge record?
A normal year at Aransas Wildlife Refuge brings 1,123 heating degree days, 79% fewer than the median U.S. place (5,373), and 3,059 cooling degree days, 3.4 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 7,545 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 350 | 6 |
| February | 222 | 17 |
| March | 107 | 62 |
| April | 24 | 171 |
| May | 2 | 361 |
| June | 0 | 502 |
| July | 0 | 557 |
| August | 0 | 570 |
| September | 0 | 438 |
| October | 17 | 268 |
| November | 109 | 87 |
| December | 293 | 20 |
| Year (annual) | 1,123 | 3,059 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00410305. 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.
How does Aransas Wildlife Refuge's climate compare?
Aransas Wildlife Refuge is warmer than 258 of the 321 places with their own NOAA record in Texas, and wetter than 236. Across the 7,247 U.S. stations with normals, its annual mean of 70.2°F is warmer than 95%.
In the Köppen classification computed from these normals, Aransas Wildlife Refuge 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.
Questions about Aransas Wildlife Refuge's climate
What is the coldest month at Aransas Wildlife Refuge?
January, with a normal high of 64°F and a normal low of 44°F. The warmest is August (90°F by day, 77°F at night).
Does it snow at Aransas Wildlife Refuge?
Rarely: NOAA's normal is 0.3 inch a year.
What is the rainiest month at Aransas Wildlife Refuge?
September, with 5.41 in of precipitation in a normal year; the driest is April with 1.91 in.
What plant hardiness zone is Aransas Wildlife Refuge in?
The USDA's 2023 map puts Aransas Wildlife Refuge in zone 9b in ZIP code 77950, the nearest ZIP area.
How late can frost come at Aransas Wildlife Refuge?
In half of years the last 32°F night comes after February 7; in one year in ten it comes after March 11. Waiting until March 11 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Texas climateThe statewide normals and every place in the state
- Port Aransas (32 mi NNE), TX1 miles from this station, 70.2°F a year
- Austwell, TX6 miles from this station, 70.8°F a year
- Rockport, TX21 miles from this station, 73.0°F a year
- Port O'Connor, TX24 miles from this station, 71.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made