Monterey, Tennessee climate: Normal weather by month, frost dates and records
Monterey's normal year runs from 27°F January nights to 84°F July afternoons, with 64.3 inches of precipitation and 16 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.6°C, January lows of −3°C, July highs of 29°C, 1,634 mm of precipitation a year.
- NOAA stationMonterey
- Station IDUSC00406170
- Location36.15°N 85.27°W
- Elevation1,860 ft (567 m)
- Population2,796
On October 22, the normal high in Monterey is 65°F and the normal low 45°F, and the chance of measurable rain or snow is 34%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Monterey.
- Jan 43° 27°
- Feb 47° 30°
- Mar 56° 37°
- Apr 67° 46°
- May 75° 56°
- Jun 81° 63°
- Jul 84° 67°
- Aug 83° 66°
- Sep 78° 59°
- Oct 68° 48°
- Nov 56° 38°
- Dec 47° 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 Monterey each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 27°F. The most precipitation falls in December (6.69 in), the least in October (3.80 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 43°F | 27°F | 35.2°F | 5.72 | 4.8 | 15 | <1 | 21 | 10 h |
| February | 47°F | 30°F | 38.8°F | 5.75 | 5.0 | 14 | <1 | 17 | 10 h 50 min |
| March | 56°F | 37°F | 46.7°F | 6.00 | 2.8 | 14 | <1 | 12 | 11 h 50 min |
| April | 67°F | 46°F | 56.4°F | 5.82 | 0.3 | 13 | <1 | 3 | 13 h |
| May | 75°F | 56°F | 65.0°F | 5.42 | 0.0 | 13 | <1 | <1 | 14 h |
| June | 81°F | 63°F | 72.1°F | 5.48 | 0.0 | 13 | 1 | <1 | 14 h 40 min |
| July | 84°F | 67°F | 75.4°F | 5.63 | 0.0 | 12 | 3 | <1 | 14 h 20 min |
| August | 83°F | 66°F | 74.4°F | 4.51 | 0.0 | 11 | 3 | <1 | 13 h 30 min |
| September | 78°F | 59°F | 68.7°F | 4.79 | 0.0 | 10 | 1 | <1 | 12 h 30 min |
| October | 68°F | 48°F | 57.7°F | 3.80 | 0.0 | 10 | <1 | 2 | 11 h 20 min |
| November | 56°F | 38°F | 46.9°F | 4.73 | 0.2 | 11 | <1 | 10 | 10 h 20 min |
| December | 47°F | 31°F | 39.0°F | 6.69 | 2.9 | 14 | <1 | 18 | 9 h 40 min |
| Year (annual) | 65°F | 47°F | 56.4°F | 64.34 | 16.0 | 149 | 8 | 83 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 6°C | −3°C | 1.8°C | 145 mm | 12 cm |
| February | 9°C | −1°C | 3.8°C | 146 mm | 13 cm |
| March | 13°C | 3°C | 8.2°C | 152 mm | 7 cm |
| April | 19°C | 8°C | 13.6°C | 148 mm | 1 cm |
| May | 24°C | 13°C | 18.3°C | 138 mm | 0 cm |
| June | 27°C | 17°C | 22.3°C | 139 mm | 0 cm |
| July | 29°C | 19°C | 24.1°C | 143 mm | 0 cm |
| August | 29°C | 19°C | 23.6°C | 115 mm | 0 cm |
| September | 26°C | 15°C | 20.4°C | 122 mm | 0 cm |
| October | 20°C | 9°C | 14.3°C | 97 mm | 0 cm |
| November | 13°C | 3°C | 8.3°C | 120 mm | 1 cm |
| December | 8°C | 0°C | 3.9°C | 170 mm | 7 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406170; 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 Monterey?
Normal highs sit between 65°F and 85°F in April, May, June, July, August, September and October. Of those, September has the fewest days with rain (10).
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 USC00406170.
When is the last frost in Monterey?
In Monterey, the last spring frost (32°F) comes after April 10 in half of years and after April 28 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 101 year in 10 after April 28; 9 in 10 after March 23
- First autumn frost, half of years before
- October 301 year in 10 before October 16; 9 in 10 before November 13
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 30 in half of springs and before November 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Monterey in zone 7a in ZIP code 38574, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Monterey's NOAA station is in zone 7a: the coldest night of a typical year reaches 4°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 USC00406170; 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 Monterey?
In a normal year in Monterey, 8 days a year reach 90°F, 83 nights fall to 32°F or colder and 149 days bring measurable precipitation.
- Days at 90°F or more
- 8a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 83a normal year
- Days that stay below freezing
- 17high of 32°F or less
- Days with 0.01 inch of precipitation
- 149a normal year
- Days with 1 inch of snow or more
- 6a normal year
The highest temperature in this station's record (since 1904) is 103°F, on June 30, 2012; the lowest is −11°F, on February 2, 1951.
The wettest calendar year on that record is 2018, with 85.24 in; the snowiest season is 1978–79, with 59.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00406170; records: ACIS (NOAA Regional Climate Centers), station USC00406170. Records use complete months only; a month missing more than three days is left out.
How sunny is Monterey?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Monterey, 4.2 kWh per square metre a day. August is the sunniest month (80%) and February the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 64% | 2.2 |
| February | 62% | 2.7 |
| March | 66% | 3.9 |
| April | 73% | 5.2 |
| May | 74% | 5.7 |
| June | 80% | 6.3 |
| July | 79% | 6.0 |
| August | 80% | 5.6 |
| September | 78% | 4.7 |
| October | 75% | 3.6 |
| November | 73% | 2.6 |
| December | 63% | 1.9 |
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 Monterey need?
A normal year in Monterey brings 4,269 heating degree days, 21% fewer than the median U.S. place (5,373), and 1,154 cooling degree days, 27% 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 4,010 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 925 | 0 |
| February | 735 | 0 |
| March | 570 | 4 |
| April | 285 | 27 |
| May | 97 | 99 |
| June | 9 | 224 |
| July | 1 | 323 |
| August | 2 | 295 |
| September | 43 | 154 |
| October | 254 | 28 |
| November | 543 | 2 |
| December | 806 | 0 |
| Year (annual) | 4,269 | 1,154 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00406170. 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 Monterey been warmer than normal lately?
2024 averaged 58.6°F, 2.2°F above the 1991-2020 normal of 56.4°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 57.2°F | +0.8°F | 72.44 | – |
| 2022 | 56.9°F | +0.5°F | 63.82 | – |
| 2024 | 58.6°F | +2.2°F | 58.71 | 13.4 |
Source: observed years: ACIS, station USC00406170. A year counts only with all twelve months complete.
How does Monterey's climate compare?
Monterey is warmer than 16 of the other 115 places with their own NOAA record in Tennessee, and wetter than 108. Across the 7,247 U.S. stations with normals, its annual mean of 56.4°F is warmer than 65%.
In the Köppen classification computed from these normals, Monterey 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 Monterey share this climate record?
2 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.
- Clarkrange, TN636 people · 14 mi E
- Mayland, TN420 people · 8 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 Monterey's climate
What is the coldest month in Monterey?
January, with a normal high of 43°F and a normal low of 27°F. The warmest is July (84°F by day, 67°F at night).
Does it snow in Monterey?
Yes: 16 inches in a normal year, falling on 10 days with 0.1 inch or more, the most in February (5.0 inches).
What is the rainiest month in Monterey?
December, with 6.69 in of precipitation in a normal year; the driest is October with 3.80 in.
What plant hardiness zone is Monterey in?
The USDA's 2023 map puts Monterey in zone 7a in ZIP code 38574, the nearest ZIP area. By the same method at Monterey's NOAA station, the coldest night of a typical year reaches 4°F (24 years, 1991-2020): zone 7a.
How late can frost come in Monterey?
In half of years the last 32°F night comes after April 10; in one year in ten it comes after April 28. Waiting until April 28 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Tennessee climateThe statewide normals and every place in the state
- Cookeville, TN14 miles from this station, 57.4°F a year
- Livingston, TN16 miles from this station, 57.4°F a year
- Crossville, TN17 miles from this station, 55.3°F a year
- Sparta, TN21 miles from this station, 58.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made