Lafayette, Tennessee Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Lafayette weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear——84°56°—
- FridayJun 5Overcast——85°62°+1°
- SaturdayJun 6Overcast——81°65°-4°
- SundayJun 7Light Showers27%0.12″77°65°-4°
- MondayJun 8Light Showers51%0.11″77°64°0°
- TuesdayJun 9Light Showers37%0.02″74°66°-3°
- WednesdayJun 10Drizzle28%—76°63°+2°
Ozone at AQI 65 — peak already passed at 1 PM under clear skies. AQI up 22 in the last 6 hours — air quality is degrading. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 65 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 65
- UV peak
- 3.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 65
PM × Wind × Precip
PM2.5 at 4.5 µg/m³ (AQI 25) with a 0.85 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:01 AM
- Moonset
- 1:56 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Lafayette at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: March 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Lafayette
SPC has placed Lafayette in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Lafayette's warmest month is July (~77°F mean) and its coldest is January (~35°F). Rainfall peaks in May (5.7 inches) and bottoms out in September (3.7 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 35° | 4.4″ | 7 |
| February | 39° | 4.7″ | 7 |
| March | 47° | 4.9″ | 8 |
| April | 56° | 5.2″ | 8 |
| May | 65° | 5.7″ | 8 |
| June | 73° | 4.6″ | 7 |
| July | 77° | 5.2″ | 7 |
| August | 76° | 3.8″ | 5 |
| September | 70° | 3.7″ | 5 |
| October | 57° | 3.8″ | 6 |
| November | 46° | 3.9″ | 6 |
| December | 39° | 5.0″ | 8 |
Regional context
Lafayette's baseline climate, derived from NOAA NCEI 1991-2020 normals at the nearest reporting station, swings from a January mean of 35°F to a July mean of 77°F — a 42°F seasonal arc typical of the mid-latitude bands. Annual precipitation runs about 55 inches spread across roughly 82 days with measurable rain or snow each year.
Rainfall stays relatively even across the calendar: May tops out at 5.7 inches across 8.0 days with measurable rain, and September settles around 3.7 inches across 5.4 rainy days — a comparatively narrow seasonal range. The balanced distribution lines Lafayette up with places like Red Boiling Springs, TN, Hartsville, TN and Westmoreland, TN, all of which run on overlapping storm tracks rather than a single seasonal moisture source.
The frost-sensitive growing window opens around mid-April, when overnight lows reliably clear freezing for cool-season crops like peas, lettuce, spinach, and radishes. Warm-soil crops — tomatoes, peppers, eggplant — wait until soil temperatures reach the mid-50s°F, usually two weeks past the last-frost date. The window closes around mid-November, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. These dates represent 30-year central tendencies; actual year-to-year variation can shift either bookend by 7-14 days, and local microclimate features within Lafayette — cold-air drainage on calm clear nights, slope aspect, distance from any nearby lake or river — can push the practical frost window earlier or later than the regional average.
Similar climates: Red Boiling Springs, TN, Hartsville, TN, Westmoreland, TN, Bransford, TN, Bethpage, TN.
Frequently asked
- When does it freeze in Lafayette?
- Lafayette's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Lafayette?
- May is the wettest month with about 5.7 inches of rain on average; the city receives roughly 55 inches annually.
- What is the warmest month in Lafayette?
- July is typically warmest, averaging about 77°F.
- What is the coldest month in Lafayette?
- January is typically coldest, averaging about 35°F.
- When can I start a vegetable garden in Lafayette?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Lafayette get?
- Lafayette averages about 82 rainy days per year.
- What hardiness zone is Lafayette?
- Lafayette's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Lafayette, Tennessee sits in a humid subtropical climate zone. January means hover near 35°F while July averages 77°F — a 42°F seasonal swing.
Across the year, Lafayette receives about 55 inches of precipitation spread over roughly 82 rainy days.
The rhythm of the year is set by latitude (36.5°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.