Frost dates in Clarksville, Tennessee
NOAA 1991–2020 normals for a 32 °F freeze. Low spots and the edge of town run colder than downtown.
Short answer
The average last spring frost in Clarksville is April 6, and the average first fall frost is October 28, from NOAA's Clarksville Outlaw Airport station, 6 miles from the middle of Clarksville. 1 year in 10 the last frost comes after April 23, and the first one by October 15. That leaves about 205 frost-free days. Clarksville is in USDA planting zone 7b.
Weather stations around Clarksville
The first row is the date most people in Clarksville go by. The others show how far the dates move across the area.
| Station | Last spring frost | First fall frost | Frost-free |
|---|---|---|---|
| Clarksville Outlaw Airport 6 mi away, 560 ft | April 6 1 in 10 after April 23 | October 28 1 in 10 by October 15 | 205 days |
| Clarksville Wwtp 1 mi away, 402 ft | April 3 1 in 10 after April 20 | November 1 1 in 10 by October 20 | 212 days |
| Clarksville No.2 5 mi away, 496 ft | April 10 1 in 10 after April 26 | October 30 1 in 10 by October 17 | 203 days |
| Cheatham L&D 18 mi away, 392 ft | April 9 1 in 10 after April 27 | November 1 1 in 10 by October 20 | 206 days |
| Elkton 20 mi away, 619 ft | April 3 1 in 10 after April 21 | October 29 1 in 10 by October 17 | 209 days |
Distances are from the middle of Clarksville as the Census Bureau maps it. The average date is NOAA's 50% date: half of years have a later last frost, or an earlier first one. Plan by the 1-in-10 date if a freeze would cost you plants. The planting zone is the USDA 2023 zone for ZIP code 37040, at the middle of the city.
Your exact ZIP code
Clarksville covers a lot of ground. For the station nearest your own street, and its planting zone, type your ZIP code.
How these dates work
Frost dates come from NOAA's 1991 to 2020 Climate Normals, which work out from each weather station's daily lows how likely the last spring freeze and the first fall freeze (32 °F) are by each date. We use the station nearest the middle of your ZIP code and show its height and distance, since a station on a hill or by a lake can differ from your yard.
The average date is the 50% date: half of years have a freeze after the spring date or before the fall one. The 1-in-10 dates are NOAA's 10% dates, the ones to plan by if a late freeze would cost you plants. Within one yard, cold air pools in low spots while walls and paving hold heat, so some corners freeze before others.
More frost dates
All of Tennessee, station by station.
Other Tennessee cities: Nashville · Memphis · Knoxville · Chattanooga · Murfreesboro
Nearby: Huntsville, AL · Louisville, KY
Where the numbers come from
- USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture
- PRISM Climate Group, Oregon State University (zone data)
- NOAA NCEI, U.S. Climate Normals 1991–2020, annual/seasonal
- NOAA, Normals calculation methodology (frost-freeze probability dates)
- US Census Bureau, 2025 ZCTA gazetteer (ZIP code centers)
- US Census Bureau, 2025 city population estimates and place gazetteer