Lewisburg, Tennessee climate: Normal weather by month, frost dates and records
Lewisburg's normal year runs from 28°F January nights to 91°F July afternoons, with 56.1 inches of precipitation and less than an inch of snow (0.9 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.0°C, January lows of −2°C, July highs of 33°C, 1,424 mm of precipitation a year.
- NOAA stationLewisburg Experiment Station
- Station IDUSC00405187
- Location35.41°N 86.81°W
- Elevation787 ft (240 m)
- Population13,473
On October 14, the normal high in Lewisburg is 75°F and the normal low 46°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Lewisburg.
- Jan 49° 28°
- Feb 54° 30°
- Mar 63° 36°
- Apr 72° 44°
- May 81° 54°
- Jun 88° 63°
- Jul 91° 67°
- Aug 91° 64°
- Sep 85° 57°
- Oct 75° 45°
- Nov 62° 36°
- Dec 52° 30°
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 Lewisburg each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 28°F. The most precipitation falls in December (5.73 in), the least in October (3.67 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 49°F | 28°F | 38.3°F | 4.47 | 9 | <1 | 22 | 10 h |
| February | 54°F | 30°F | 41.9°F | 4.73 | 9 | <1 | 18 | 10 h 50 min |
| March | 63°F | 36°F | 49.4°F | 5.56 | 11 | <1 | 13 | 11 h 50 min |
| April | 72°F | 44°F | 58.3°F | 5.06 | 10 | <1 | 5 | 13 h |
| May | 81°F | 54°F | 67.4°F | 4.71 | 11 | 2 | <1 | 14 h |
| June | 88°F | 63°F | 75.4°F | 4.87 | 11 | 11 | <1 | 14 h 30 min |
| July | 91°F | 67°F | 78.8°F | 4.44 | 11 | 19 | <1 | 14 h 20 min |
| August | 91°F | 64°F | 77.5°F | 4.29 | 9 | 17 | <1 | 13 h 30 min |
| September | 85°F | 57°F | 71.1°F | 4.52 | 7 | 8 | <1 | 12 h 30 min |
| October | 75°F | 45°F | 59.9°F | 3.67 | 8 | 1 | 4 | 11 h 20 min |
| November | 62°F | 36°F | 49.1°F | 4.02 | 9 | <1 | 14 | 10 h 20 min |
| December | 52°F | 30°F | 41.3°F | 5.73 | 10 | <1 | 20 | 9 h 50 min |
| Year (annual) | 72°F | 46°F | 59.0°F | 56.07 | 115 | 58 | 95 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | −2°C | 3.5°C | 114 mm |
| February | 12°C | −1°C | 5.5°C | 120 mm |
| March | 17°C | 2°C | 9.7°C | 141 mm |
| April | 22°C | 7°C | 14.6°C | 129 mm |
| May | 27°C | 12°C | 19.7°C | 120 mm |
| June | 31°C | 17°C | 24.1°C | 124 mm |
| July | 33°C | 19°C | 26.0°C | 113 mm |
| August | 33°C | 18°C | 25.3°C | 109 mm |
| September | 30°C | 14°C | 21.7°C | 115 mm |
| October | 24°C | 7°C | 15.5°C | 93 mm |
| November | 17°C | 2°C | 9.5°C | 102 mm |
| December | 11°C | −1°C | 5.2°C | 146 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00405187; 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 Lewisburg?
Normal highs sit between 65°F and 85°F in April, May and October. Of those, October has the fewest days with rain (8).
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 USC00405187.
When is the last frost in Lewisburg?
In Lewisburg, the last spring frost (32°F) comes after April 14 in half of years and after April 30 in one year in ten; the first autumn frost comes before October 22 in half of years and before October 9 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 141 year in 10 after April 30; 9 in 10 after March 31
- First autumn frost, half of years before
- October 221 year in 10 before October 9; 9 in 10 before November 5
NOAA puts the median frost-free season at 192 days, and the season without a hard freeze (28°F) at 213 days.
A hard freeze (28°F) comes after April 3 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Lewisburg in zone 7b in ZIP code 37091, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Lewisburg's NOAA station is in zone 7b: the coldest night of a typical year reaches 6°F (28 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 USC00405187; 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 Lewisburg?
In a normal year in Lewisburg, 58 days a year reach 90°F (2 of them 100°F or more), 95 nights fall to 32°F or colder and 115 days bring measurable precipitation.
- Days at 90°F or more
- 58a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 95a normal year
- Days that stay below freezing
- 6high of 32°F or less
- Days with 0.01 inch of precipitation
- 115a normal year
The highest temperature in this station's record (since 1890) is 112°F, on July 2, 2012; the lowest is −20°F, on January 21, 1985.
The wettest calendar year on that record is 1989, with 76.12 in; the snowiest season is 1944–45, with 17.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00405187; records: ACIS (NOAA Regional Climate Centers), station USC00405187. Records use complete months only; a month missing more than three days is left out.
How sunny is Lewisburg?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Lewisburg, 4.3 kWh per square metre a day. June is the sunniest month (80%) and February the cloudiest (63%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 2.3 |
| February | 63% | 2.9 |
| March | 68% | 4.0 |
| April | 75% | 5.3 |
| May | 76% | 5.9 |
| June | 80% | 6.4 |
| July | 79% | 6.1 |
| August | 80% | 5.5 |
| September | 79% | 4.8 |
| October | 76% | 3.7 |
| November | 75% | 2.8 |
| December | 65% | 2.0 |
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 Lewisburg need?
A normal year in Lewisburg brings 3,714 heating degree days, 31% fewer than the median U.S. place (5,373), and 1,568 cooling degree days, 73% 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 4,591 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 828 | 0 |
| February | 646 | 1 |
| March | 489 | 5 |
| April | 234 | 33 |
| May | 65 | 140 |
| June | 3 | 315 |
| July | 0 | 428 |
| August | 1 | 387 |
| September | 27 | 210 |
| October | 204 | 44 |
| November | 483 | 4 |
| December | 734 | 0 |
| Year (annual) | 3,714 | 1,568 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00405187. 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.
Has Lewisburg been warmer than normal lately?
2023 averaged 61.1°F, 2.1°F above the 1991-2020 normal of 59.0°F.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 61.1°F | +2.1°F | 50.36 |
Over 109 complete years from 1890 to 2023, the station's annual mean temperature rose at a fitted 0.7°F per century (+0.04°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00405187; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Lewisburg's climate compare?
Lewisburg is warmer than 76 of the other 115 places with their own NOAA record in Tennessee, and wetter than 57. Across the 7,247 U.S. stations with normals, its annual mean of 59.0°F is warmer than 72%.
In the Köppen classification computed from these normals, Lewisburg is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Lewisburg 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.
- Cornersville, TN1,362 people · 4 mi SW
- Petersburg, TN559 people · 12 mi SE
- Lynnville, TN321 people · 11 mi W
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 Lewisburg's climate
What is the coldest month in Lewisburg?
January, with a normal high of 49°F and a normal low of 28°F. The warmest is July (91°F by day, 67°F at night).
Does it snow in Lewisburg?
Rarely: NOAA's normal is 0.9 inch a year.
What is the rainiest month in Lewisburg?
December, with 5.73 in of precipitation in a normal year; the driest is October with 3.67 in.
What plant hardiness zone is Lewisburg in?
The USDA's 2023 map puts Lewisburg in zone 7b in ZIP code 37091, the nearest ZIP area. By the same method at Lewisburg's NOAA station, the coldest night of a typical year reaches 6°F (28 years, 1991-2020): zone 7b.
How late can frost come in Lewisburg?
In half of years the last 32°F night comes after April 14; in one year in ten it comes after April 30. Waiting until April 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Shelbyville, TN19 miles from this station, 59.6°F a year
- Pulaski, TN21 miles from this station, 57.3°F a year
- Columbia, TN22 miles from this station, 58.0°F a year
- Neapolis Reservoir & Edu Station, TN23 miles from this station, 59.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made