McMinnville, Tennessee climate: Normal weather by month, frost dates and records
McMinnville's normal year runs from 31°F January nights to 89°F July afternoons, with 54.4 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.7°C, January lows of 0°C, July highs of 31°C, 1,382 mm of precipitation a year.
- NOAA stationMcMinnville
- Station IDUSC00405882
- Location35.67°N 85.78°W
- Elevation940 ft (287 m)
- Population14,032
On October 22, the normal high in McMinnville is 71°F and the normal low 46°F, and the chance of measurable rain or snow is 31%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for McMinnville.
- Jan 51° 31°
- Feb 55° 34°
- Mar 63° 40°
- Apr 73° 48°
- May 79° 57°
- Jun 86° 64°
- Jul 89° 68°
- Aug 88° 67°
- Sep 83° 60°
- Oct 73° 49°
- Nov 62° 39°
- Dec 53° 34°
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 McMinnville each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 31°F. The most precipitation falls in December (5.49 in), the least in October (3.21 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 51°F | 31°F | 40.9°F | 4.57 | 1.4 | 12 | <1 | 18 | 10 h |
| February | 55°F | 34°F | 44.3°F | 5.00 | 0.9 | 13 | <1 | 14 | 10 h 50 min |
| March | 63°F | 40°F | 51.7°F | 5.24 | 0.6 | 13 | <1 | 9 | 11 h 50 min |
| April | 73°F | 48°F | 60.5°F | 5.04 | 0.0 | 11 | <1 | 2 | 13 h |
| May | 79°F | 57°F | 68.0°F | 4.69 | 0.0 | 12 | 1 | <1 | 14 h |
| June | 86°F | 64°F | 75.0°F | 4.53 | 0.0 | 12 | 7 | <1 | 14 h 30 min |
| July | 89°F | 68°F | 78.2°F | 4.80 | 0.0 | 13 | 12 | <1 | 14 h 20 min |
| August | 88°F | 67°F | 77.2°F | 3.70 | 0.0 | 10 | 10 | <1 | 13 h 30 min |
| September | 83°F | 60°F | 71.5°F | 3.90 | 0.0 | 9 | 4 | <1 | 12 h 30 min |
| October | 73°F | 49°F | 61.0°F | 3.21 | 0.0 | 9 | <1 | 2 | 11 h 20 min |
| November | 62°F | 39°F | 50.4°F | 4.24 | 0.1 | 10 | <1 | 10 | 10 h 20 min |
| December | 53°F | 34°F | 43.6°F | 5.49 | 1.1 | 13 | <1 | 16 | 9 h 50 min |
| Year (annual) | 71°F | 49°F | 60.2°F | 54.41 | 4.1 | 136 | 34 | 69 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | 0°C | 4.9°C | 116 mm | 4 cm |
| February | 13°C | 1°C | 6.8°C | 127 mm | 2 cm |
| March | 17°C | 5°C | 10.9°C | 133 mm | 2 cm |
| April | 23°C | 9°C | 15.8°C | 128 mm | 0 cm |
| May | 26°C | 14°C | 20.0°C | 119 mm | 0 cm |
| June | 30°C | 18°C | 23.9°C | 115 mm | 0 cm |
| July | 31°C | 20°C | 25.7°C | 122 mm | 0 cm |
| August | 31°C | 19°C | 25.1°C | 94 mm | 0 cm |
| September | 28°C | 16°C | 21.9°C | 99 mm | 0 cm |
| October | 23°C | 9°C | 16.1°C | 82 mm | 0 cm |
| November | 17°C | 4°C | 10.2°C | 108 mm | 0 cm |
| December | 12°C | 1°C | 6.4°C | 139 mm | 3 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00405882; 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 McMinnville?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (9).
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 USC00405882.
When is the last frost in McMinnville?
In McMinnville, the last spring frost (32°F) comes after April 7 in half of years and after April 23 in one year in ten; the first autumn frost comes before October 30 in half of years and before October 16 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 71 year in 10 after April 23; 9 in 10 after March 20
- First autumn frost, half of years before
- October 301 year in 10 before October 16; 9 in 10 before November 10
NOAA puts the median frost-free season at 203 days, and the season without a hard freeze (28°F) at 227 days.
A hard freeze (28°F) comes after March 27 in half of springs and before November 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts McMinnville in zone 7b in ZIP code 37110, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, McMinnville'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 USC00405882; 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 McMinnville?
In a normal year in McMinnville, 34 days a year reach 90°F (1 of them 100°F or more), 69 nights fall to 32°F or colder and 136 days bring measurable precipitation.
- Days at 90°F or more
- 34a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 69a normal year
- Days that stay below freezing
- 5high of 32°F or less
- Days with 0.01 inch of precipitation
- 136a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1894) is 106°F, on June 30, 2012; the lowest is −26°F, on February 13, 1899.
The wettest calendar year on that record is 2020, with 72.20 in; the snowiest season is 1995–96, with 20.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00405882; records: ACIS (NOAA Regional Climate Centers), station USC00405882. Records use complete months only; a month missing more than three days is left out.
How sunny is McMinnville?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around McMinnville, 4.3 kWh per square metre a day. August is the sunniest month (79%) and February the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 66% | 2.3 |
| February | 62% | 2.9 |
| March | 68% | 4.0 |
| April | 74% | 5.3 |
| May | 75% | 5.8 |
| June | 79% | 6.3 |
| July | 78% | 6.0 |
| August | 79% | 5.5 |
| September | 78% | 4.8 |
| October | 76% | 3.7 |
| November | 74% | 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 McMinnville need?
A normal year in McMinnville brings 3,286 heating degree days, 39% fewer than the median U.S. place (5,373), and 1,565 cooling degree days, 72% 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 4,782 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 748 | 1 |
| February | 580 | 1 |
| March | 421 | 11 |
| April | 182 | 47 |
| May | 52 | 143 |
| June | 3 | 303 |
| July | 0 | 409 |
| August | 0 | 378 |
| September | 19 | 215 |
| October | 174 | 50 |
| November | 444 | 6 |
| December | 664 | 1 |
| Year (annual) | 3,286 | 1,565 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00405882. 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 McMinnville been warmer than normal lately?
2025 averaged 61.2°F, 1.0°F above the 1991-2020 normal of 60.2°F. 4 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 60.5°F | +0.3°F | 61.99 | – |
| 2023 | 61.2°F | +1.0°F | 47.91 | 0.0 |
| 2024 | 62.1°F | +1.9°F | 57.71 | – |
| 2025 | 61.2°F | +1.0°F | 62.99 | – |
Over 110 complete years from 1873 to 2025, the station's annual mean temperature rose at a fitted 1.1°F per century (+0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00405882; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does McMinnville's climate compare?
McMinnville is warmer than 102 of the other 115 places with their own NOAA record in Tennessee, and wetter than 34. Across the 7,247 U.S. stations with normals, its annual mean of 60.2°F is warmer than 75%.
In the Köppen classification computed from these normals, McMinnville 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 McMinnville 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.
- Morrison, TN790 people · 8 mi SW
- Centertown, TN323 people · 9 mi NW
- Viola, TN112 people · 10 mi SW
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 McMinnville's climate
What is the coldest month in McMinnville?
January, with a normal high of 51°F and a normal low of 31°F. The warmest is July (89°F by day, 68°F at night).
Does it snow in McMinnville?
Yes: 4 inches in a normal year, falling on 4 days with 0.1 inch or more, the most in January (1.4 inches).
What is the rainiest month in McMinnville?
December, with 5.49 in of precipitation in a normal year; the driest is October with 3.21 in.
What plant hardiness zone is McMinnville in?
The USDA's 2023 map puts McMinnville in zone 7b in ZIP code 37110, the nearest ZIP area. By the same method at McMinnville'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 McMinnville?
In half of years the last 32°F night comes after April 7; in one year in ten it comes after April 23. Waiting until April 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Rock Island State Park, TN12 miles from this station, 58.8°F a year
- Smithville, TN19 miles from this station, 56.9°F a year
- Manchester, TN21 miles from this station, 56.7°F a year
- Woodbury, TN21 miles from this station, 58.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made