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Aransas Pass, TX Weather
Aransas Pass, Texas sits at 27.9150, -97.1032. Its warmest month is August, when the day usually reaches 90F, and its coldest is January, when the night usually falls to 51F. January is the wettest, with rain on about 9 days. The hottest day in the station record is 101F on September 5, 2000, and the coldest night 12F on December 23, 1989. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Aransas Pass weather
Aransas Pass sits at 27.9150, -97.1032 and covers about 13.19 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Aransas Pass
Aransas Pass is warmest in August, when the day usually reaches 90F, and coldest in January, when the night usually falls to 51F. January is the wettest month, with rain on about 9 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
January
64F
51F
9
February
66F
54F
8
March
71F
60F
7
April
78F
67F
5
May
83F
74F
5
June
88F
79F
5
July
89F
80F
4
August
90F
80F
5
September
88F
77F
9
October
83F
71F
6
November
74F
61F
7
December
66F
54F
8
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Port Aransas station 7.2 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Aransas Pass weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Aransas Pass: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Aransas Pass weather records
In 47,288 days of observations Aransas Pass has been as hot as 101F and as cold as 12F. Not averages: the actual days.
Hottest day
101F
September 5, 2000
Coldest night
12F
December 23, 1989
Wettest day
13.89 in
August 22, 1999
Biggest snow
1.0 in
December 8, 2017
NOAA GHCN daily station records, observed 1986 to 2024: temperature at the Port Aransas station, 7.2 miles away; snowfall at the Welder Wildlife Foundation station, 23.6 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Aransas Pass weather
Common questions
What is the weather usually like in Aransas Pass, TX?
Aransas Pass is warmest in August, when the day usually reaches 90F, and coldest in January, when the night usually falls to 51F. Rain falls on roughly 78 days a year, most often in January. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Aransas Pass, TX?
About 78 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. January is the wettest month with rain on about 9 of its days, and July the driest with about 4.
What is the hottest it has ever been in Aransas Pass, TX?
The hottest day measured for Aransas Pass reached 101F on September 5, 2000, and the coldest night 12F on December 23, 1989. Both are real NOAA station measurements from the GHCN daily archive, observed 1986 to 2024, at the Port Aransas station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Aransas Pass, TX?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Aransas Pass forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.