Milan, Tennessee climate: Normal weather by month, frost dates and records
Milan's normal year runs from 28°F January nights to 90°F July afternoons, with 56.2 inches of precipitation and 3 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 15.4°C, January lows of −2°C, July highs of 32°C, 1,427 mm of precipitation a year.
- NOAA stationMilan Experiment Station
- Station IDUSC00406012
- Location35.93°N 88.73°W
- Elevation415 ft (127 m)
- From the center2 miles
- Population8,306
On October 14, the normal high in Milan is 75°F and the normal low 48°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Milan.
- Jan 48° 28°
- Feb 53° 31°
- Mar 62° 39°
- Apr 72° 47°
- May 80° 58°
- Jun 87° 66°
- Jul 90° 70°
- Aug 90° 67°
- Sep 84° 59°
- Oct 74° 47°
- Nov 61° 37°
- Dec 51° 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 Milan each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 28°F. The most precipitation falls in May (6.24 in), the least in October (3.68 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 48°F | 28°F | 37.9°F | 4.16 | 1.5 | 11 | <1 | 22 | 10 h |
| February | 53°F | 31°F | 41.8°F | 4.70 | 0.9 | 11 | <1 | 18 | 10 h 50 min |
| March | 62°F | 39°F | 50.2°F | 5.32 | 0.3 | 12 | <1 | 11 | 11 h 50 min |
| April | 72°F | 47°F | 59.8°F | 5.27 | 0.0 | 11 | <1 | 3 | 13 h |
| May | 80°F | 58°F | 68.9°F | 6.24 | 0.0 | 12 | 2 | <1 | 14 h |
| June | 87°F | 66°F | 76.7°F | 4.39 | 0.0 | 10 | 12 | <1 | 14 h 30 min |
| July | 90°F | 70°F | 79.9°F | 4.30 | 0.0 | 10 | 19 | <1 | 14 h 20 min |
| August | 90°F | 67°F | 78.4°F | 3.70 | 0.0 | 8 | 17 | <1 | 13 h 30 min |
| September | 84°F | 59°F | 71.7°F | 4.20 | 0.0 | 7 | 8 | <1 | 12 h 30 min |
| October | 74°F | 47°F | 60.4°F | 3.68 | 0.0 | 8 | 1 | 4 | 11 h 20 min |
| November | 61°F | 37°F | 49.1°F | 4.79 | 0.1 | 10 | <1 | 13 | 10 h 20 min |
| December | 51°F | 31°F | 41.1°F | 5.43 | 0.2 | 12 | <1 | 20 | 9 h 40 min |
| Year (annual) | 71°F | 48°F | 59.7°F | 56.18 | 3.0 | 120 | 59 | 90 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | −2°C | 3.3°C | 106 mm | 4 cm |
| February | 11°C | 0°C | 5.4°C | 119 mm | 2 cm |
| March | 17°C | 4°C | 10.1°C | 135 mm | 1 cm |
| April | 22°C | 9°C | 15.4°C | 134 mm | 0 cm |
| May | 27°C | 14°C | 20.5°C | 158 mm | 0 cm |
| June | 31°C | 19°C | 24.8°C | 112 mm | 0 cm |
| July | 32°C | 21°C | 26.6°C | 109 mm | 0 cm |
| August | 32°C | 19°C | 25.8°C | 94 mm | 0 cm |
| September | 29°C | 15°C | 22.1°C | 107 mm | 0 cm |
| October | 23°C | 8°C | 15.8°C | 93 mm | 0 cm |
| November | 16°C | 3°C | 9.5°C | 122 mm | 0 cm |
| December | 11°C | −1°C | 5.1°C | 138 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406012; 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 Milan?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (7).
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 USC00406012.
When is the last frost in Milan?
In Milan, the last spring frost (32°F) comes after April 4 in half of years and after April 21 in one year in ten; the first autumn frost comes before October 28 in half of years and before October 15 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 41 year in 10 after April 21; 9 in 10 after March 17
- First autumn frost, half of years before
- October 281 year in 10 before October 15; 9 in 10 before November 10
NOAA puts the median frost-free season at 206 days, and the season without a hard freeze (28°F) at 226 days.
A hard freeze (28°F) comes after March 25 in half of springs and before November 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Milan in zone 7b in ZIP code 38358. By the map's own method, the average of each year's coldest night over 1991-2020, Milan's NOAA station is in zone 7b: the coldest night of a typical year reaches 6°F (24 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 USC00406012; 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 Milan?
In a normal year in Milan, 59 days a year reach 90°F (2 of them 100°F or more), 90 nights fall to 32°F or colder and 120 days bring measurable precipitation.
- Days at 90°F or more
- 59a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 90a normal year
- Days that stay below freezing
- 7high of 32°F or less
- Days with 0.01 inch of precipitation
- 120a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1883) is 110°F, on August 9, 1930; the lowest is −23°F, on February 2, 1951.
The wettest calendar year on that record is 2018, with 76.74 in; the snowiest season is 1967–68, with 32.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00406012; records: ACIS (NOAA Regional Climate Centers), station USC00406012. Records use complete months only; a month missing more than three days is left out.
How sunny is Milan?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Milan, 4.4 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 68% | 2.4 |
| February | 64% | 2.9 |
| March | 68% | 4.0 |
| April | 74% | 5.3 |
| May | 76% | 5.9 |
| June | 82% | 6.5 |
| July | 82% | 6.3 |
| August | 82% | 5.7 |
| September | 81% | 4.9 |
| October | 77% | 3.8 |
| November | 74% | 2.8 |
| December | 66% | 2.1 |
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 Milan need?
A normal year in Milan brings 3,676 heating degree days, 32% fewer than the median U.S. place (5,373), and 1,766 cooling degree days, 95% 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 4,864 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 841 | 1 |
| February | 649 | 1 |
| March | 470 | 12 |
| April | 211 | 54 |
| May | 52 | 174 |
| June | 2 | 353 |
| July | 0 | 462 |
| August | 0 | 417 |
| September | 25 | 228 |
| October | 199 | 58 |
| November | 484 | 6 |
| December | 743 | 1 |
| Year (annual) | 3,676 | 1,766 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406012. 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 Milan been warmer than normal lately?
2025 averaged 60.3°F, 0.6°F above the 1991-2020 normal of 59.7°F. 1 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 57.1°F | −2.6°F | 53.39 | 8.1 |
| 2025 | 60.3°F | +0.6°F | – | 5.7 |
Over 52 complete years from 1949 to 2025, the station's annual mean temperature rose at a fitted 1.9°F per century (+0.11°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00406012; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Milan's climate compare?
Milan is warmer than 94 of the other 115 places with their own NOAA record in Tennessee, and wetter than 60. Across the 7,247 U.S. stations with normals, its annual mean of 59.7°F is warmer than 74%.
In the Köppen classification computed from these normals, Milan 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 Milan share this climate record?
8 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.
- Medina, TN5,681 people · 9 mi SW
- Trenton, TN4,111 people · 13 mi W
- Dyer, TN2,328 people · 18 mi NW
- Bradford, TN1,002 people · 11 mi NW
- Atwood, TN967 people · 4 mi NE
- Trezevant, TN813 people · 8 mi NE
- Gibson, TN372 people · 8 mi SW
- Lavinia, TN77 people · 7 mi SE
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 Milan's climate
What is the coldest month in Milan?
January, with a normal high of 48°F and a normal low of 28°F. The warmest is July (90°F by day, 70°F at night).
Does it snow in Milan?
Yes: 3 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in January (1.5 inches).
What is the rainiest month in Milan?
May, with 6.24 in of precipitation in a normal year; the driest is October with 3.68 in.
What plant hardiness zone is Milan in?
The USDA's 2023 map puts Milan in zone 7b in ZIP code 38358. By the same method at Milan's NOAA station, the coldest night of a typical year reaches 6°F (24 years, 1991-2020): zone 7b.
How late can frost come in Milan?
In half of years the last 32°F night comes after April 4; 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
- Huntingdon, TN17 miles from this station, 59.1°F a year
- Alamo, TN24 miles from this station, 59.5°F a year
- Dresden, TN24 miles from this station, 58.6°F a year
- Jackson, TN25 miles from this station, 60.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made