Climate Comfort Score
64/100
Good
NOAA 1991–2020 normals 53°F annual avg Public-domain federal data
Mtn City, TN Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 53°F
- Avg annual temp
- 64/100
- Comfort score
- 47.2"
- Annual precip
- 170d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Mtn City
Mtn City, Tennessee averages 53°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
- 53°F
- average temperature, NOAA 1991-2020 normal
- 64/100
- comfort score, milder than 51% of U.S. cities
- 47.2"
- annual precipitation · 12" snow
- 170 days
- growing season, frost-free days
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
53°F (12°C)
Avg High
66°F
Avg Low
41°F
Annual Precip
47.2"
Annual Snow
12.0"
Comfort Score
64/100
Good
Avg Annual Temperature
53°F
30-year mean (NOAA NCEI)
Annual Precipitation
47.2"
Plus 12.0" of snow
Comfort score vs national 100-point ceiling (Mtn City) 64.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Mtn City area.
How Mtn City compares to every U.S. city
Mtn City's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 Top 49% higher than 51% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Mtn City
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Mtn City's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 46°F (8°C) | 23°F (-5°C) | 34°F (1°C) | 3.7" | 3.4" | 24.9 | 0.0 |
| February | 49°F (9°C) | 25°F (-4°C) | 37°F (3°C) | 3.4" | 5.0" | 22.1 | 0.0 |
| March | 57°F (14°C) | 31°F (0°C) | 44°F (7°C) | 4.1" | 1.1" | 18.5 | 0.0 |
| April | 67°F (19°C) | 39°F (4°C) | 53°F (12°C) | 4.3" | 0.1" | 8.4 | 0.0 |
| May | 74°F (23°C) | 49°F (9°C) | 61°F (16°C) | 5.2" | 0.0" | 1.3 | 0.0 |
| June | 80°F (27°C) | 56°F (14°C) | 68°F (20°C) | 4.5" | 0.0" | 0.0 | 0.4 |
| July | 82°F (28°C) | 60°F (16°C) | 71°F (22°C) | 5.0" | 0.0" | 0.0 | 1.4 |
| August | 81°F (27°C) | 59°F (15°C) | 70°F (21°C) | 4.2" | 0.0" | 0.0 | 0.9 |
| September | 77°F (25°C) | 53°F (11°C) | 65°F (18°C) | 3.3" | 0.0" | 0.3 | 0.2 |
| October | 68°F (20°C) | 41°F (5°C) | 55°F (13°C) | 2.8" | 0.0" | 7.5 | 0.1 |
| November | 58°F (14°C) | 31°F (0°C) | 45°F (7°C) | 2.9" | 0.4" | 19.6 | 0.0 |
| December | 49°F (9°C) | 26°F (-3°C) | 38°F (3°C) | 3.9" | 2.0" | 23.7 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 3.7"
Snow: 3.4"
9.0 days with precipitation
February 3.4"
Snow: 5.0"
9.4 days with precipitation
March 4.1"
Snow: 1.1"
10.0 days with precipitation
April 4.3"
Snow: 0.1"
9.5 days with precipitation
May 5.2"
11.8 days with precipitation
June 4.5"
11.7 days with precipitation
July 5.0"
11.5 days with precipitation
August 4.2"
10.0 days with precipitation
September 3.3"
8.2 days with precipitation
October 2.8"
6.8 days with precipitation
November 2.9"
Snow: 0.4"
7.3 days with precipitation
December 3.9"
Snow: 2.0"
9.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 14
50% probability date
Last Spring Freeze
April 27
50% probability date
Growing Season
170 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,837
Higher = more heating needed
Cooling Degree Days
632
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Mtn City's climate means for you
Mtn City runs 53°F a year - peaking in July, coldest in January.
- Gardeners get about 170 frost-free days, with the last spring freeze near April 27 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,837 heating and 632 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Mtn City, TN
Mtn City, Tennessee runs an annual average of 53°F, ranging from a mean daily high of 66°F to a mean daily low of 41°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USC00406292, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Mtn City receives roughly 47.2 inches of precipitation each year, with 12.0 inches typically falling as snow. The frost-free season averages 170 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 27 and the first fall freeze near October 14. For energy use, 4,837 heating degree days and 632 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Mtn City scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Mtn City, TN? ▼
The average annual temperature in Mtn City, Tennessee is 53°F. The warmest month averages 82°F (28°C) and the coldest averages 23°F (-5°C).
How much rain does Mtn City get? ▼
Mtn City receives 47.2 inches of precipitation annually, including 12.0 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Mtn City? ▼
Mtn City has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Mtn City? ▼
Mtn City has approximately 170 frost-free days per year, with the last spring freeze around April 27 and the first fall freeze around October 14.
How much energy does heating and cooling require in Mtn City? ▼
Mtn City has 4,837 heating degree days and 632 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Mtn City climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00406292 near Mtn City.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00406292. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.