The year at a glance
| Season | Weather (Beaumont–Port Arthur normals) | Pool jobs |
|---|---|---|
| December–February | Highs 64–67°F; about 3–5 in of rain a month | Service the heater and pump; clean the filter; keep a freeze plan; don't lower the water while groundwater is high |
| March–May | Highs 73–86°F | Skim spring leaf drop; balance the water before the first swim; check the cover and fence gates |
| June–September | Highs 91–93°F; nearly 7 in of rain a month | Test after every storm; shock after heavy rain; keep a hurricane plan |
| October–November | Highs 82°F falling to 72°F; November is one of the drier months | Clear fall leaves; book repairs before winter; storm season ends November 30 |
Temperatures and rain from NOAA 1991–2020 normals at the Beaumont–Port Arthur airport (NCEI).
Summer: heat, sun and storms
Long, hot days use up chlorine fastest, and summer is also the wettest stretch of the year here. After a heavy storm, skim the debris, check that the overflow line kept the level where it should be, and test before anyone swims. Hayward's manual advises super-chlorinating after a large amount of rain (Hayward), and a salt pool will need salt added back (see salt vs chlorine). When a hurricane is forecast, follow the storm checklist on our hurricanes page: the pool stays full.
The rare hard freeze
Freezes are short here, but they happen. The National Weather Service recorded 14°F at Beaumont–Port Arthur on February 16, 2021, during seven straight days at or below freezing from February 14 to 20, with lows averaging 25.1°F. On January 22, 2025, the low reached 11°F, tied for the second coldest on record behind 10°F in 1906 (NWS, NWS).
Moving water freezes more slowly, so Leslie's advises running the pump continuously through a freeze. If the power fails, it says to turn off the breakers and drain the pump, filter and heater so they don't crack (Leslie's). Ask your builder whether the automation has a freeze sensor, and where the drain plugs are, before the first cold front.
A green pool is a mosquito problem
Jefferson County Mosquito Control District warns that anything able to hold water for five days or more can breed mosquitoes. The district is at 8905 First Street in Beaumont, (409) 719-5940, and takes spray requests by phone or online (JCMCD). A neglected pool after a move or a storm evacuation is exactly that kind of water.
If the house will sit empty, keep the pump on a timer and ask a service to check it. Don't drain the pool to solve the problem: on wet clay, an empty shell can crack or lift.
Winter: the service window
Mild winters make December to February a good time for repairs, filter cleaning and equipment upgrades, since nobody misses the pool for a week. The catch is groundwater: USDA notes perched water close to the surface in League clay from January to March (USDA), so any job that lowers the water belongs with the builder. If you are weighing new equipment, our running-cost guide shows why the pump comes first.
Common questions
Do I need to close my pool for winter in Beaumont?
No. Winter highs here average in the mid-60s (NOAA), so pools run all year. Keep the pump on a daily schedule, clear leaves, and have a plan for the occasional hard freeze.
What should I do with my pool in a freeze?
Keep the pump running nonstop, because moving water freezes more slowly. If power goes out, switch off the breakers and drain the pump, filter and heater (Leslie's). Beaumont fell to 14°F in February 2021 (NWS).
Who do I call about a neighbor's green pool?
Jefferson County Mosquito Control District, (409) 719-5940, takes spray requests by phone or online and warns that standing water held five days or more can breed mosquitoes (JCMCD). Inside a city, code enforcement can also help.
Sources & further reading
- NOAA 1991–2020 normals, Beaumont–Port Arthur. Monthly highs and rain
- NWS Lake Charles: Beaumont–Port Arthur coldest days. Feb 2021, Jan 2025
- NWS Lake Charles: consecutive freezing days, Beaumont–Port Arthur. Feb 14–20, 2021
- Leslie's: responding to freezing weather. Freeze steps
- Jefferson County Mosquito Control District. Standing water
- Hayward: salt chlorination owner's manual. Rain and super-chlorinating
- USDA soil series: League. Winter perched water
Editorial note: General planning information, not engineering or legal advice. Prices are estimates; confirm current rules with your local officials and a qualified pro.