Best days to pour concrete, by city
Concrete: 40–85°F, no rain for 24 hours, no freezing for 48. Pick a city for a live 7-day verdict from the National Weather Service forecast and the months that usually work there.
Alabama
Arizona
Arkansas
California
Colorado
Connecticut
District of Columbia
Florida
Georgia
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Nebraska
Nevada
New Mexico
Oklahoma
Oregon
Rhode Island
South Carolina
Virginia
Washington
Wisconsin
The rules Fairsky uses
- Needs 4 hours in a row of daylight.
- Air at least 40°F (32–39°F is borderline).
- No hotter than 85°F (86–90°F is borderline).
- Wind at or under 20 mph. (Fairsky default)
- Rain chance at or below 20%. (Fairsky default)
- No rain for 24 hours after you finish.
- Stays above 32°F for 48 hours after (below 40°F, plan on blankets).
Your product's label wins.
Sources: ACI 306R-16 cold-weather concreting (STRUCTURE magazine) · NIH technical bulletin: cold weather concreting · Euclid Chemical: preventing rapid evaporation · Quikrete 5000 data sheet
The app covers 47 activities in all: see every activity and its rules.
Fairsky is not a substitute for official warnings. For warnings, go to weather.gov.
Live forecasts: National Weather Service / NOAA (public domain), fetched by your browser. Climate averages: NOAA NCEI U.S. Climate Normals, 1991–2020 (public domain). Activity thresholds: product data sheets, ACI and university extension guidance, linked on each page; your product’s label wins.