Ames Plantation, Tennessee climate: Climate normals at a NOAA weather station
Ames Plantation's normal year runs from 31°F January nights to 91°F July afternoons, with 57.8 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.2°C, January lows of −1°C, July highs of 33°C, 1,468 mm of precipitation a year.
- NOAA stationAmes Plantation
- Station IDUSC00400137
- Location35.11°N 89.21°W
- Elevation460 ft (140 m)
On October 23, the normal high in Ames Plantation is 72°F and the normal low 47°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 Ames Plantation.
- Jan 50° 31°
- Feb 55° 34°
- Mar 63° 41°
- Apr 73° 49°
- May 81° 59°
- Jun 88° 66°
- Jul 91° 70°
- Aug 91° 68°
- Sep 86° 61°
- Oct 75° 50°
- Nov 63° 40°
- 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 at Ames Plantation each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 31°F. The most precipitation falls in March (5.74 in), the least in August (3.36 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 50°F | 31°F | 40.3°F | 4.63 | 10 | <1 | 20 | 10 h |
| February | 55°F | 34°F | 44.1°F | 4.98 | 10 | <1 | 15 | 10 h 50 min |
| March | 63°F | 41°F | 52.0°F | 5.74 | 12 | <1 | 9 | 11 h 50 min |
| April | 73°F | 49°F | 60.9°F | 5.65 | 10 | <1 | 2 | 13 h |
| May | 81°F | 59°F | 69.6°F | 5.69 | 11 | 2 | <1 | 14 h |
| June | 88°F | 66°F | 77.2°F | 4.87 | 9 | 13 | <1 | 14 h 30 min |
| July | 91°F | 70°F | 80.5°F | 4.92 | 10 | 21 | <1 | 14 h 20 min |
| August | 91°F | 68°F | 79.5°F | 3.36 | 8 | 20 | <1 | 13 h 30 min |
| September | 86°F | 61°F | 73.5°F | 4.06 | 7 | 10 | <1 | 12 h 30 min |
| October | 75°F | 50°F | 62.3°F | 4.14 | 8 | 1 | 2 | 11 h 20 min |
| November | 63°F | 40°F | 51.1°F | 4.23 | 9 | <1 | 10 | 10 h 20 min |
| December | 53°F | 34°F | 43.3°F | 5.52 | 11 | <1 | 17 | 9 h 50 min |
| Year (annual) | 72°F | 50°F | 61.2°F | 57.79 | 114 | 67 | 74 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | −1°C | 4.6°C | 118 mm |
| February | 13°C | 1°C | 6.7°C | 126 mm |
| March | 17°C | 5°C | 11.1°C | 146 mm |
| April | 23°C | 10°C | 16.1°C | 144 mm |
| May | 27°C | 15°C | 20.9°C | 145 mm |
| June | 31°C | 19°C | 25.1°C | 124 mm |
| July | 33°C | 21°C | 26.9°C | 125 mm |
| August | 33°C | 20°C | 26.4°C | 85 mm |
| September | 30°C | 16°C | 23.1°C | 103 mm |
| October | 24°C | 10°C | 16.8°C | 105 mm |
| November | 17°C | 4°C | 10.6°C | 107 mm |
| December | 12°C | 1°C | 6.3°C | 140 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Moscow (12 miles away), gets 2 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00400137; 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.
Which months are mildest at Ames Plantation?
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 USC00400137.
When is the last frost at Ames Plantation?
In Ames Plantation, the last spring frost (32°F) comes after April 1 in half of years and after April 17 in one year in ten; the first autumn frost comes before November 3 in half of years and before October 21 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 11 year in 10 after April 17; 9 in 10 after March 12
- First autumn frost, half of years before
- November 31 year in 10 before October 21; 9 in 10 before November 19
NOAA puts the median frost-free season at 217 days, and the season without a hard freeze (28°F) at 243 days.
A hard freeze (28°F) comes after March 17 in half of springs and before November 14 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Ames Plantation in zone 7b in ZIP code 38039, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 7b: the coldest night of a typical year reaches 9°F (26 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 USC00400137; 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 at Ames Plantation?
In a normal year in Ames Plantation, 67 days a year reach 90°F (2 of them 100°F or more), 74 nights fall to 32°F or colder and 114 days bring measurable precipitation.
- Days at 90°F or more
- 67a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 74a normal year
- Days that stay below freezing
- 4high of 32°F or less
- Days with 0.01 inch of precipitation
- 114a normal year
The highest temperature in this station's record (since 1976) is 106°F, on August 16, 2007; the lowest is −12°F, on January 21, 1985.
The wettest calendar year on that record is 2002, with 68.32 in; the snowiest season is 2003–04, with 10.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00400137; records: ACIS (NOAA Regional Climate Centers), station USC00400137. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Ames Plantation?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds at Ames Plantation, 4.4 kWh per square metre a day. August is the sunniest month (83%) and February the cloudiest (65%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.4 |
| February | 65% | 3.0 |
| March | 69% | 4.1 |
| April | 75% | 5.3 |
| May | 77% | 6.0 |
| June | 83% | 6.6 |
| July | 83% | 6.3 |
| August | 83% | 5.8 |
| September | 81% | 4.9 |
| October | 78% | 3.8 |
| November | 74% | 2.8 |
| December | 67% | 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 many heating and cooling degree days does Ames Plantation record?
A normal year at Ames Plantation brings 3,268 heating degree days, 39% fewer than the median U.S. place (5,373), and 1,913 cooling degree days, 2.1 times 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 5,176 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 766 | 1 |
| February | 586 | 2 |
| March | 416 | 13 |
| April | 181 | 58 |
| May | 42 | 185 |
| June | 1 | 367 |
| July | 0 | 482 |
| August | 0 | 450 |
| September | 16 | 269 |
| October | 160 | 76 |
| November | 426 | 9 |
| December | 675 | 2 |
| Year (annual) | 3,268 | 1,913 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00400137. 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.
Have recent years at Ames Plantation been warmer than normal?
2022 averaged 60.7°F, 0.5°F below the 1991-2020 normal of 61.2°F. 0 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 61.1°F | −0.1°F | 57.15 |
| 2022 | 60.7°F | −0.5°F | 58.98 |
Over 36 complete years from 1977 to 2025, the station's annual mean temperature rose at a fitted 4.7°F per century (+0.26°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00400137; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Ames Plantation's climate compare?
Ames Plantation is warmer than 110 of the 116 places with their own NOAA record in Tennessee, and wetter than 79. Across the 7,247 U.S. stations with normals, its annual mean of 61.2°F is warmer than 78%.
In the Köppen classification computed from these normals, Ames Plantation 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 Ames Plantation share this climate record?
4 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.
- Walnut, MS687 people · 20 mi SE
- Grand Junction, TN330 people · 5 mi S
- La Grange, TN120 people · 5 mi S
- Hickory Valley, TN79 people · 6 mi NE
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 Ames Plantation's climate
What is the coldest month at Ames Plantation?
January, with a normal high of 50°F and a normal low of 31°F. The warmest is July (91°F by day, 70°F at night).
Does it snow at Ames Plantation?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Moscow (12 miles away), records 2 inches of snow in a normal year.
What is the rainiest month at Ames Plantation?
March, with 5.74 in of precipitation in a normal year; the driest is August with 3.36 in.
What plant hardiness zone is Ames Plantation in?
The USDA's 2023 map puts Ames Plantation in zone 7b in ZIP code 38039, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 9°F (26 years, 1991-2020): zone 7b.
How late can frost come at Ames Plantation?
In half of years the last 32°F night comes after April 1; in one year in ten it comes after April 17. Waiting until April 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Moscow, TN12 miles from this station, 61.2°F a year
- Bolivar, TN16 miles from this station, 59.6°F a year
- Ashland, MS19 miles from this station, 60.0°F a year
- Holly Springs, MS24 miles from this station, 59.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made