Lafayette, Tennessee climate: Normal weather by month, frost dates and records
Lafayette's normal year runs from 27°F January nights to 88°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 14.7°C, January lows of −3°C, July highs of 31°C.
- NOAA stationLafayette
- Station IDUSC00404987
- Location36.52°N 86.03°W
- Elevation975 ft (297 m)
- Population5,919
On October 23, the normal high in Lafayette is 69°F and the normal low 46°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Lafayette.
- Jan 45° 27°
- Feb 50° 31°
- Mar 59° 39°
- Apr 70° 48°
- May 78° 56°
- Jun 85° 65°
- Jul 88° 69°
- Aug 88° 67°
- Sep 82° 60°
- Oct 71° 48°
- Nov 59° 38°
- Dec 49° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Lafayette each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 27°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 45°F | 27°F | 35.7°F | – | <1 | 20 | 10 h |
| February | 50°F | 31°F | 40.1°F | – | <1 | 16 | 10 h 50 min |
| March | 59°F | 39°F | 48.8°F | – | <1 | 10 | 11 h 50 min |
| April | 70°F | 48°F | 58.6°F | – | <1 | 2 | 13 h 10 min |
| May | 78°F | 56°F | 67.1°F | – | 2 | <1 | 14 h 10 min |
| June | 85°F | 65°F | 75.0°F | – | 10 | <1 | 14 h 40 min |
| July | 88°F | 69°F | 78.6°F | – | 17 | <1 | 14 h 30 min |
| August | 88°F | 67°F | 77.6°F | – | 15 | <1 | 13 h 40 min |
| September | 82°F | 60°F | 70.9°F | – | 5 | <1 | 12 h 30 min |
| October | 71°F | 48°F | 59.7°F | – | <1 | 1 | 11 h 20 min |
| November | 59°F | 38°F | 48.7°F | – | <1 | 9 | 10 h 20 min |
| December | 49°F | 31°F | 39.6°F | – | <1 | 18 | 9 h 40 min |
| Year (annual) | 69°F | 48°F | 58.4°F | – | 48 | 75 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 7°C | −3°C | 2.1°C |
| February | 10°C | −1°C | 4.5°C |
| March | 15°C | 4°C | 9.3°C |
| April | 21°C | 9°C | 14.8°C |
| May | 25°C | 14°C | 19.5°C |
| June | 30°C | 18°C | 23.9°C |
| July | 31°C | 20°C | 25.9°C |
| August | 31°C | 20°C | 25.3°C |
| September | 28°C | 16°C | 21.6°C |
| October | 22°C | 9°C | 15.4°C |
| November | 15°C | 3°C | 9.3°C |
| December | 9°C | −1°C | 4.2°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Bethpage (17 miles away), gets 5 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00404987; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Lafayette?
Normal highs sit between 65°F and 85°F in April, May, September and October.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00404987.
When is the last frost in Lafayette?
In Lafayette, the last spring frost (32°F) comes after April 3 in half of years and after April 21 in one year in ten; the first autumn frost comes before November 1 in half of years and before October 20 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 31 year in 10 after April 21; 9 in 10 after March 18
- First autumn frost, half of years before
- November 11 year in 10 before October 20; 9 in 10 before November 16
NOAA puts the median frost-free season at 213 days, and the season without a hard freeze (28°F) at 234 days.
A hard freeze (28°F) comes after March 23 in half of springs and before November 11 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Lafayette in zone 7b in ZIP code 37083, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Lafayette's NOAA station is in zone 7b: the coldest night of a typical year reaches 6°F (19 complete years).
Frost dates for every NOAA station in Tennessee · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00404987; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Lafayette?
In a normal year in Lafayette, 48 days a year reach 90°F (1 of them 100°F or more) and 75 nights fall to 32°F or colder.
- Days at 90°F or more
- 48a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 75a normal year
- Days that stay below freezing
- 9high of 32°F or less
The highest temperature in this station's record (since 1958) is 108°F, on June 30, 2012; the lowest is −20°F, on January 24, 1963.
The wettest calendar year on that record is 1989, with 77.63 in; the snowiest season is 1978–79, with 38.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00404987; records: ACIS (NOAA Regional Climate Centers), station USC00404987. Records use complete months only; a month missing more than three days is left out.
How sunny is Lafayette?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Lafayette, 4.2 kWh per square metre a day. August is the sunniest month (81%) and February the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 65% | 2.2 |
| February | 62% | 2.8 |
| March | 67% | 3.9 |
| April | 74% | 5.2 |
| May | 75% | 5.7 |
| June | 80% | 6.3 |
| July | 80% | 6.1 |
| August | 81% | 5.6 |
| September | 79% | 4.7 |
| October | 75% | 3.6 |
| November | 73% | 2.6 |
| December | 64% | 1.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Lafayette need?
A normal year in Lafayette brings 3,918 heating degree days, 27% fewer than the median U.S. place (5,373), and 1,527 cooling degree days, 68% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,542 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 910 | 0 |
| February | 697 | 0 |
| March | 510 | 6 |
| April | 228 | 35 |
| May | 64 | 129 |
| June | 4 | 306 |
| July | 0 | 420 |
| August | 0 | 389 |
| September | 22 | 200 |
| October | 201 | 37 |
| November | 494 | 4 |
| December | 788 | 1 |
| Year (annual) | 3,918 | 1,527 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00404987. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Lafayette's climate compare?
Lafayette is warmer than 56 of the other 115 places with their own NOAA record in Tennessee. Across the 7,247 U.S. stations with normals, its annual mean of 58.4°F is warmer than 70%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Lafayette share this climate record?
3 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Red Boiling Springs, TN1,214 people · 10 mi E
- Gamaliel, KY467 people · 16 mi NE
- Fountain Run, KY219 people · 15 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Lafayette's climate
What is the coldest month in Lafayette?
January, with a normal high of 45°F and a normal low of 27°F. The warmest is July (88°F by day, 69°F at night).
Does it snow in Lafayette?
Yes. NOAA publishes no 1991-2020 snowfall normal for Lafayette's NOAA station; the nearest record that keeps one, Bethpage (17 miles away), records 5 inches of snow in a normal year.
What plant hardiness zone is Lafayette in?
The USDA's 2023 map puts Lafayette in zone 7b in ZIP code 37083, the nearest ZIP area. By the same method at Lafayette's NOAA station, the coldest night of a typical year reaches 6°F (19 years, 1991-2020): zone 7b.
How late can frost come in Lafayette?
In half of years the last 32°F night comes after April 3; in one year in ten it comes after April 21. Waiting until April 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Hartsville/Trousdale County, TN13 miles from this station, 57.9°F a year
- Bethpage, TN17 miles from this station, 56.7°F a year
- Scottsville, KY19 miles from this station, 57.0°F a year
- Carthage, TN19 miles from this station, 58.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made