Tennessee weather and outdoor projects
Tennessee has hot, humid summers and mild to cool winters, with plenty of rain, especially in winter and spring. Memphis in the west is the hottest and most humid, Nashville in the middle has frequent storms in spring, and East Tennessee is milder in summer and cooler at higher elevations.
Fall is often the best season for outdoor projects. Spring works between storms. Humid summer nights can bring dew on fresh finishes, so start early. Ice and freeze-thaw cycles occur most winters, so protect new concrete on cold nights.
Frost dates in Tennessee
In Nashville, the median last spring freeze (32°F) is around March 31 and the median first fall freeze is around November 3, a frost-free season of about 217 days.
In Memphis, the median last spring freeze (32°F) is around March 16 and the median first fall freeze is around November 16, a frost-free season of about 244 days.
How Tennessee compares with other states
Nashville is tied for the 7th-most rainy days of the 50 state main stations (81 a year with 0.1 in or more). Nashville is tied for the 14th-shortest deck staining season of the 50 state main stations (4 good months). Nashville has the 15th-most days at 90°F or hotter of the 50 state main stations (54 a year).
| Measure (Nashville) | Value | Rank, highest first |
|---|---|---|
| Deck staining season | 4 good months | 20th of 50 |
| Frost-free season | 217 days | 21st of 50 |
| Freezing nights | 66 a year | 35th of 50 |
| Rainy days | 81 a year with 0.1 in or more | 7th of 50 |
| Days at 90°F or hotter | 54 a year | 15th of 50 |
| Summer afternoons | 50% humidity at 3 PM, June–August | 20th of 47 |
Best time to stain a deck in Tennessee
In Nashville, the most reliable months are April–May and September–October. March, June–August and November can also work on the right days. December–February is too cold, with average highs around 52°F. In March, nights average about 40°F, so finish early on mild days and check the overnight low. June–August is hot, with highs near 90°F, so start early and keep out of full afternoon sun. November is cool, with highs around 61°F, so choose the warmest afternoons.
In Memphis, the most reliable months are April–May and September–October. March, June–August and November can also work on the right days. December–January is too cold, with average highs around 52°F. In February, nights average about 37°F, too cold for the coating to dry and cure overnight. In March and November, nights average about 44°F, so finish early on mild days and check the overnight low. June–August is hot, with highs near 91°F, so start early and keep out of full afternoon sun.
Best time to paint outside in Tennessee
In Nashville, the most reliable months are April–May and September–October. February–March, June–August and November–December can also work on the right days. January is too cold, with average highs around 49°F. February and December are cool, with highs around 53°F, so choose the warmest afternoons. In March and November, nights average about 40°F, so finish early on mild days and check the overnight low. June–August is hot, with highs near 90°F, so start early and keep out of full afternoon sun.
In Memphis, the most reliable months are April–May and September–October. June–August and November–March can also work on the right days. December–February is cool, with highs around 53°F, so choose the warmest afternoons. In March and November, nights average about 44°F, so finish early on mild days and check the overnight low. June–August is hot, with highs near 91°F, so start early and keep out of full afternoon sun.
Best time to pour concrete in Tennessee
In Nashville, the most reliable months are April–October. March can also work on the right days (average highs Mar 63°F). November–February averages about 14 nights a month at or below 32°F, so fresh concrete needs blankets or heated enclosures. March brings about 7 freezing nights a month, so pick a mild spell and keep curing blankets on hand.
In Memphis, the most reliable months are April–October. March and November can also work on the right days (average highs Mar 64°F, Nov 63°F). December–February averages about 12 nights a month at or below 32°F, so fresh concrete needs blankets or heated enclosures. March and November bring about 4 freezing nights a month, so pick a mild spell and keep curing blankets on hand.
Best time to seal a driveway in Tennessee
In Nashville, the most reliable months are May–September. April and October can also work on the right days (average highs Apr 73°F, Oct 74°F). December–February is too cold, with average highs around 52°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 49°F, so finish early on mild days and check the overnight low.
In Memphis, the most reliable months are April–October. March and November can also work on the right days (average highs Mar 64°F, Nov 63°F). December–February is too cold, with average highs around 53°F. March and November are cool, with highs around 63°F, so choose the warmest afternoons.
Best time to fertilize or treat a lawn in Tennessee
In Nashville, the most reliable months are March–May and September–November. February, June–August and December can also work on the right days. January is too cold, with average highs around 49°F. February and December are cool, with highs around 53°F, so choose the warmest afternoons. June–August is hot, with highs near 90°F, so start early and keep out of full afternoon sun.
In Memphis, the most reliable months are March–May and September–November. June–August and December–February can also work on the right days. December–February is cool, with highs around 53°F, so choose the warmest afternoons. June–August is hot, with highs near 91°F, so start early and keep out of full afternoon sun.
How the weather differs across Tennessee
| Place | Hottest month avg high | Coldest month avg low | Rain per year | Last spring freeze | First fall freeze |
|---|---|---|---|---|---|
| Nashville | 91°F | 30°F | 51 in | March 31 | November 3 |
| Memphis | 92°F | 33°F | 55 in | March 16 | November 16 |
Monthly weather in Nashville
| Month | Avg high | Avg low | Wet days* | Rain | 3 PM humidity | Freezing nights |
|---|---|---|---|---|---|---|
| January | 49°F | 30°F | 7 | 4.0 in | 52% | 19 |
| February | 54°F | 33°F | 7 | 4.5 in | 47% | 14 |
| March | 63°F | 40°F | 8 | 4.5 in | 43% | 7 |
| April | 73°F | 49°F | 8 | 4.7 in | 43% | 1 |
| May | 80°F | 58°F | 8 | 5.0 in | 48% | 0 |
| June | 88°F | 66°F | 7 | 4.4 in | 50% | 0 |
| July | 91°F | 71°F | 7 | 4.2 in | 51% | 0 |
| August | 90°F | 69°F | 6 | 3.8 in | 49% | 0 |
| September | 84°F | 62°F | 5 | 3.8 in | 47% | 0 |
| October | 74°F | 50°F | 6 | 3.4 in | 45% | 1 |
| November | 61°F | 39°F | 6 | 3.9 in | 47% | 8 |
| December | 52°F | 33°F | 8 | 4.4 in | 54% | 16 |
*Days with 0.1 inch of rain or more; column notes.
Monthly weather in Memphis
| Month | Avg high | Avg low | Wet days* | Rain | 3 PM humidity | Freezing nights |
|---|---|---|---|---|---|---|
| January | 51°F | 33°F | 6 | 4.1 in | 53% | 15 |
| February | 56°F | 37°F | 7 | 4.5 in | 49% | 10 |
| March | 64°F | 44°F | 8 | 5.7 in | 46% | 4 |
| April | 73°F | 53°F | 7 | 5.9 in | 47% | 0 |
| May | 82°F | 62°F | 7 | 5.3 in | 50% | 0 |
| June | 89°F | 70°F | 6 | 4.0 in | 51% | 0 |
| July | 92°F | 74°F | 6 | 4.8 in | 53% | 0 |
| August | 92°F | 73°F | 5 | 3.4 in | 50% | 0 |
| September | 86°F | 66°F | 4 | 3.0 in | 47% | 0 |
| October | 75°F | 54°F | 5 | 4.0 in | 46% | 0 |
| November | 63°F | 43°F | 6 | 4.7 in | 49% | 4 |
| December | 53°F | 36°F | 7 | 5.5 in | 55% | 12 |
Source: NOAA NCEI U.S. Climate Normals 1991–2020 for NASHVILLE INTL AP, MEMPHIS INTL AP. See how the ratings work and how late in fall you can stain, paint or seal.
Frequently asked questions
When is the best time to stain a deck in Tennessee?
In Nashville, April–May and September–October. In Memphis, April–May and September–October.
When is the last frost in Tennessee?
Nashville: around March 31; Memphis: around March 16.
Can you pour concrete in winter in Tennessee?
Yes, with cold-weather practices: Nashville averages about 49 freezing nights from December to February, so fresh concrete needs insulated blankets, a heated enclosure or an accelerated mix, and must not freeze in the first 48 hours. Many homeowners wait for spring.
What months are best for sealing a driveway in Tennessee?
In Nashville, May–September. In Memphis, April–October.