Pool closing · Texas
When to Close Your Pool in Texarkana, TX: Deadline, Window & Checklist
Last updated: July 15, 2026 · Model window year: 2026 · dates · checklist · FAQ
Target November 4 as the practical closing deadline in Texarkana. Our model of NOAA 1991–2020 normals keeps the 7-day mean above 61°F until October 25; after that, cooling water winds algae down while you work the checklist below. The hard stop is equipment freeze damage — normals put Texarkana's first 32°F night near November 17.
Texarkana closing dates at a glance
| Closing window | October 25 – November 4 |
|---|---|
| Close by (deadline) | November 4 |
| First freeze, 50% probability | November 17 |
| Open by (recommended) | March 25 |
| Opening window | March 18 – April 8 |
| 61°F crossing (7-day mean) | April 8 |
| Swim-season length (80°F+ days) | 152 days |
| NOAA normals station | Texarkana · 1.0 mi · 390 ft |
A classic four-season pool calendar: open early into cold water, close late into cold water, and Texarkana's 152 days of prime swimming sit safely in between.
The same model in water terms: Texarkana's estimated pool temperature runs about 62°F in mid-April, 78°F in mid-June, 83°F in mid-August, and 68°F in mid-October, peaking near 84°F. Those four checkpoints — not any calendar holiday — are what the windows above are protecting.
The 12-step Texarkana winterizing checklist
The order matters more than the date: balanced water first, verified-dry lines before anything else freezes-proofs, and the cover only after everything below it is done. Work the list inside the window above.
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Balance the water a few days ahead
Three or four days before closing, adjust alkalinity and pH into label ranges. Balanced water is gentler on the liner, plaster, and equipment through the long covered months ahead.
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Deep-clean the pool
Leave nothing organic behind: skim the surface, brush every wall and step, vacuum the floor slowly. What goes under the cover dirty comes out worse — winter only ever compounds what it's given.
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Service the filter one last time
Clean media goes into storage, dirty media comes out worse: backwash the sand or DE, rinse the cartridges, all per the manual, before anything drains.
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Apply winter chemicals per label
Dose the winter kit while the pump still runs — every product exactly per its label for your volume — so the chemistry is fully mixed before the system goes quiet.
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Lower the water level
Check the cover manufacturer's spec before touching the hose: solid covers typically want water below the skimmer mouth, mesh often barely lower than normal. Full draining is off the table entirely.
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Blow out the lines and plug returns
The blowout is the whole ballgame: drive air through each line until it runs dry, seat the plug against the airflow, move to the next. A dry line cannot burst, full stop.
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Protect the skimmer
Install a skimmer guard bottle (or a plug rated for your skimmer) so ice that forms there crushes the sacrificial piece instead of cracking the skimmer body.
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Add pool antifreeze where blowouts fall short
Antifreeze is the insurance policy for doubtful lines, not a replacement for the blowout: pool-grade product, label dosing, and only where air couldn't finish the job.
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Drain the equipment
Every vessel on the pad — pump, filter, heater, chlorinator — gets its drain plugs pulled. Drop all the plugs in the pump basket; that's the one place everyone looks first in spring.
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Set the air pillow and cover
Inflate the pillow to about two-thirds, center it, then bring the cover over and secure it per its design. Under ice, that soft dome is the difference between inward compression and outward wall pressure.
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Calendar the off-season checks
Set a monthly reminder from November 4 to spring: check cover tension, pump off standing water, and glance at the water level. Fifteen minutes a month protects the whole closing job.
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Remove and store ladders and rails
Pull ladders, rails, and the diving-board hardware; rinse, dry, and store them out of the weather. Anchor sockets get a dab of protectant so spring bolts turn freely.
What to buy before the rush
The October crowd empties shelves in a predictable order. This is the short list worth owning before Texarkana's window opens — nothing exotic, just the stuff everyone needs the same weekend.
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Cover pump
Solid covers collect rain all winter; this is the drainage plan.
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Expansion plugs + skimmer guard
Cheap rubber that stands between ice and your fittings.
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Pool antifreeze
Backup for unverifiable lines; label rate per foot of pipe.
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Winter closing kit
Closing chemistry in one box, dosed by pool volume.
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Air pillow
Gives ice somewhere to push besides your pool walls.
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Winter cover
Sized to overlap; the cheapest insurance the pool wears all winter.
How Texarkana compares locally
Two nearby data points to triangulate with: Shreveport, 70 miles from Texarkana, models its close at November 11 (about a week later); Longview, 75 miles out, at November 13. Texarkana's own window ends November 4. For the other half of the calendar see when to open in Texarkana, or scan the full year on the season page.
Every number on this page traces to one instrument cluster: Texarkana, 1.0 miles southeast of Texarkana's center at an elevation near 390 feet. NOAA computed its 1991–2020 normals from roughly three decades of daily readings — long enough that one strange spring in Bowie County barely moves the dates.
Field notes for Texarkana owners
The skimmer is the most breakable part you own
Skimmer bodies crack because water freezes inside the throat with nowhere to push. A sacrificial bottle or spring-loaded guard absorbs that expansion for a few dollars. It's the highest-return item in the entire closing kit relative to what it protects.
Cover pumps die in the cold — plan for it
A cover pump left running into a hard freeze can lock in ice and burn out. On freezing forecasts, pull it, let the storm pass, and put it back for the melt. Automatic models with freeze protection earn their price in exactly one forgotten weekend.
Match the drainage plan to the cover
Solid covers shed nothing — they need a cover pump staged before the first storm and checked after each one. Mesh covers drain themselves but pass silt that settles all winter. Either way, the plan is decided in October, not improvised in January when the cover is an ice sheet.
Texarkana pool closing FAQ
What temperature should water be to close a pool?
Close once water holds below about 65°F — the point where algae go mostly dormant — and before hard freezes. In Texarkana, the 7-day mean drops through the threshold around October 25, so the window between then and November 4 is the sweet spot for a clean, stable close.
Can you close a pool too early?
Absolutely. A pool closed warm is an algae incubator: no circulation, fading sanitizer, and weeks of growth-friendly temperatures. Texarkana's water doesn't settle below the risk zone until around October 25 — closing much before that trades a few weekends of maintenance for a rough spring.
Do I need antifreeze in pool lines?
It depends entirely on your confidence in the blowout. Lines that blew fully dry need nothing; anything uncertain — low runs, water features, a stubborn cleaner line — gets pool-grade antifreeze at the label's rate per foot. With Texarkana's freeze clock starting near November 17, uncertainty is the thing to eliminate.
How far should I drain my pool for winter?
Only to the line your cover manufacturer prints — a few inches below the skimmer for most solid covers, close to operating level for many mesh designs with the skimmer plugged. The water you leave in is structural: it holds the shell against groundwater all winter.
What happens if you don't winterize a pool?
In a freeze climate, physics wins: water expands about 9% when it freezes, cracking pump housings, filter tanks, heat exchangers, and pipes. With Texarkana's first 32°F night arriving near November 17 in the normals, an unwinterized pad is a spring repair bill waiting to be discovered.
When is the last safe date to close in Texarkana?
The model draws the line at November 4 for Texarkana. It isn't arbitrary: the cool-down plus ten days (the freeze normal, November 17, leaves room to spare), and the whole closing sequence needs a working weekend of margin. The one exception that overrides any date — a hard freeze inside the 10-day forecast, which the widget above flags as urgent.
Email me when Texarkana hits the closing window
Data: NOAA 1991–2020 climate normals via Texarkana (1.0 mi); live outlook by Open-Meteo. Full attribution on the sources page. Model assumptions and error bars on methodology.