Best Time for Outdoor Projects in Oklahoma

Oklahoma weather and outdoor projects

Oklahoma has hot summers, mild to cold winters and very active spring weather, with frequent thunderstorms in April through June. Oklahoma City and Tulsa often see summer highs in the upper 90s or above, and wind is common across the state.

Fall is usually the most reliable season for exterior projects. In summer, work early to avoid heat that flash-dries stain and paint and cracks concrete. Ice storms are a winter hazard. Strong winds make spraying paint or weed killer difficult on many days, so check the hourly wind forecast.

Frost dates in Oklahoma

In Oklahoma City, the median last spring freeze (32°F) is around April 4 and the median first fall freeze is around November 2, a frost-free season of about 213 days.

In Tulsa, the median last spring freeze (32°F) is around March 31 and the median first fall freeze is around November 4, a frost-free season of about 220 days.

Frost dates matter for concrete, which must not freeze in its first 48 hours, for paint and caulk that need nights above their minimum, and for lawn care, since crabgrass preventer goes down as the soil warms in spring. See how late in fall you can stain, paint or seal.

Best time to stain a deck in Oklahoma

In Oklahoma City, the most reliable months are May and September–October. March–April and June can also work on the right days. December–February is too cold, with average highs around 51°F. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. In November, nights average about 38°F, too cold for the coating to dry and cure overnight. In March–April, nights average about 44°F, so finish early on mild days and check the overnight low. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun.

In Tulsa, the most reliable months are April–May and September–October. March, June and November can also work on the right days. December–February is too cold, with average highs around 51°F. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. In March, nights average about 41°F, so finish early on mild days and check the overnight low. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun. November is cool, with highs around 61°F, so choose the warmest afternoons.

Check this week’s hour-by-hour verdict with the deck staining forecast.

Best time to paint outside in Oklahoma

In Oklahoma City, the most reliable months are April–May and September–October. March, June and November can also work on the right days. January is too cold, with average highs around 49°F. In February and December, nights average about 30°F, too cold for the coating to dry and cure overnight. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. In March and November, nights average about 39°F, so finish early on mild days and check the overnight low. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun.

In Tulsa, the most reliable months are April–May and September–October. March, June and November can also work on the right days. January is too cold, with average highs around 49°F. In February and December, nights average about 31°F, too cold for the coating to dry and cure overnight. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. In March and November, nights average about 40°F, so finish early on mild days and check the overnight low. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun.

Check this week’s hour-by-hour verdict with the exterior painting forecast.

Best time to pour concrete in Oklahoma

In Oklahoma City, the most reliable months are April–October. March and November can also work on the right days. December–February averages about 19 nights a month at or below 32°F, so fresh concrete needs blankets or heated enclosures. March and November bring about 7 freezing nights a month, so pick a mild spell and keep curing blankets on hand.

In Tulsa, the most reliable months are April–October. March and November can also work on the right days. December–February averages about 18 nights a month at or below 32°F, so fresh concrete needs blankets or heated enclosures. March and November bring about 7 freezing nights a month, so pick a mild spell and keep curing blankets on hand.

Check this week’s hour-by-hour verdict with the concrete pouring forecast.

Best time to seal a driveway in Oklahoma

In Oklahoma City, the most reliable months are May–September. April and October can also work on the right days. December–February is too cold, with average highs around 51°F. In March and November, nights average about 39°F, too cold for the coating to dry and cure overnight. In April and October, nights average about 48°F, so finish early on mild days and check the overnight low.

In Tulsa, the most reliable months are May–September. April and October can also work on the right days. December–February is too cold, with average highs around 51°F. In March and November, nights average about 40°F, too cold for the coating to dry and cure overnight. In April and October, nights average about 50°F, so finish early on mild days and check the overnight low.

Check this week’s hour-by-hour verdict with the driveway sealing forecast.

Best time to fertilize or treat a lawn in Oklahoma

In Oklahoma City, the most reliable months are March–May and September–November. February, June and December can also work on the right days. January is too cold, with average highs around 49°F. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. February and December are cool, with highs around 52°F, so choose the warmest afternoons. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun.

In Tulsa, the most reliable months are March–May and September–November. February, June and December can also work on the right days. January is too cold, with average highs around 49°F. July–August is hot, with average highs near 93°F and about 23 days a month at 90°F or more, so work early in the day. February and December are cool, with highs around 52°F, so choose the warmest afternoons. June is hot, with highs near 88°F, so start early and keep out of full afternoon sun.

Check this week’s hour-by-hour verdict with the lawn fertilizer forecast.

How the weather differs across Oklahoma

Of the places above, Tulsa has the most good months for staining, painting and concrete combined (15 job-months), and Oklahoma City has the fewest (14). If you live between them, expect something in between, and higher ground to be cooler with a shorter season.

Monthly weather in Oklahoma City

*Days with at least 0.1 inch of rain or melted snow. Freezing nights: average nights a month at or below 32°F. Humidity is calculated from NOAA hourly normal temperature and dew point at 3 PM.

Monthly weather in Tulsa

Use the averages, then check the forecast

These ratings describe a typical month, not a particular week. A warm spell in a “poor” month can give you a good day, and a wet week can spoil a “good” one. Use this page to plan the season, then check the 7-day forecast for your ZIP code before you buy materials or book help. Each project forecast checks the hours after you finish too: overnight lows, dew and rain that would ruin fresh stain, paint, sealer or concrete.

About this data

Monthly temperatures, rain days, snowfall and freeze dates are NOAA National Centers for Environmental Information (NCEI) U.S. Climate Normals for 1991–2020 at OKLAHOMA CITY WILL ROGERS AP, TULSA INTL AP. Ratings apply the same temperature limits as our forecasts (for example, 50°F or warmer for deck stain and driveway sealer, and no freezing nights for new concrete) to the average month. Your product label always takes priority.