Concrete Pouring Weather in Louisiana: Best Months by City
Concrete Pouring season in Louisiana, city by city: peak months, season boundaries, and annual workable-day counts from NOAA 1991–2020 normals. Slidell leads with 249 workable days a year; Monroe runs the shortest at 145.
Louisiana is not one climate: Slidell banks 249 workable concrete pouring days a year while Monroe gets 145 — a spread the table below itemizes month by month. Season boundaries mark the first and last month averaging 8+ workable days against the label rules (40–90°F, nights 40°F+).
Statewide, October is the strongest month — it tops or ties the table in most listed cities. The live strips on each city page decide the week; this table decides the month. Scoring rules: methodology; the national playbook: the concrete pouring guide.
Cities in Louisiana
| City | Peak months | Season | Workable days/yr |
|---|---|---|---|
| New Orleans | Oct, May, Apr | September–June | 215 |
| Baton Rouge | Oct, Apr, May | September–June | 207 |
| Shreveport | Oct, May, Nov | February–May | 146 |
| Lafayette | Oct, Mar, Apr | September–May | 207 |
| Lake Charles | Oct, Mar, Apr | September–May | 196 |
| Metairie | Oct, Apr, Mar | September–June | 206 |
| Houma | Apr, May, Mar | September–June | 207 |
| Mandeville | Oct, May, Nov | August–June | 233 |
| Monroe | Oct, Nov, May | February–May | 145 |
| Slidell | Oct, May, Apr | year-round | 249 |
The rules behind these numbers
| Check | Threshold | Why it matters |
|---|---|---|
| Air temperature | 40–90°F — ideal 50–85°F | DIY pours work from 40–90°F; 50–85°F is the sweet spot. |
| Overnight low | ≥40°F during the first 48 h | A low under 40°F inside the first 48 hours puts you in cold-weather concreting — not a DIY window. |
| Dry before | no soaking (≥1.0") in the prior 24 h | Rain before the pour only matters if the ground is soaked or standing in water. |
| Dry after | <0.1" rain for 6 h after (12 h light rain after finishing still risks surface marks) | A downpour in the first 6 hours can wash the surface; after final set, rain actually helps curing. |
| Wind | ≤20 mph (rapid surface drying up to 28 mph) | Hot wind pulls bleed water out faster than the slab can handle. |
Always follow your product label — formulas vary. The table above is the typical range across major manufacturers, not a promise about your can.
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