PlainClimate
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data

Roan Mtn, TN Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

52°F
Avg annual temp
54/100
Comfort score
52.5"
Annual precip
165d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Roan Mtn

Roan Mtn, Tennessee averages 52°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.

52°F
annual average temperature (NOAA normal)
54/100
comfort score, milder than 27% of U.S. cities
52.5"
precipitation, annual total
165 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

52°F (11°C)

Avg High

64°F

Avg Low

40°F

Annual Precip

52.5"

Comfort Score

54/100

Moderate

Climate Comfort Score

54/100

Moderate

Avg Annual Temperature

52°F

30-year mean (NOAA NCEI)

Annual Precipitation

52.5"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Roan Mtn) 54.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Roan Mtn area.

How Roan Mtn compares to every U.S. city

Roan Mtn's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

54 Top 73% higher than 27% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). This entry sits in this band. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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 Roan Mtn

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Roan Mtn, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • 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
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 44°F (7°C) 22°F (-5°C) 33°F (1°C)
February 48°F (9°C) 25°F (-4°C) 37°F (3°C)
March 55°F (13°C) 31°F (-1°C) 43°F (6°C)
April 65°F (18°C) 38°F (3°C) 51°F (11°C)
May 71°F (22°C) 47°F (8°C) 59°F (15°C)
June 77°F (25°C) 55°F (13°C) 66°F (19°C)
July 80°F (26°C) 59°F (15°C) 69°F (21°C)
August 78°F (26°C) 58°F (14°C) 68°F (20°C)
September 74°F (23°C) 51°F (10°C) 62°F (17°C)
October 67°F (19°C) 40°F (5°C) 54°F (12°C)
November 56°F (13°C) 30°F (-1°C) 43°F (6°C)
December 48°F (9°C) 26°F (-4°C) 37°F (3°C)

Monthly Precipitation

Average monthly rainfall

January 4.3"
February 3.8"
March 4.7"
April 4.7"
May 4.8"
June 4.8"
July 5.3"
August 5.0"
September 4.0"
October 3.3"
November 3.6"
December 4.3"

Frost Dates & Growing Season

First Fall Freeze

October 12

50% probability date

Last Spring Freeze

April 30

50% probability date

Growing Season

165 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

5,145

Higher = more heating needed

Cooling Degree Days

367

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Roan Mtn's climate means for you

Roan Mtn runs 52°F a year - peaking in July, coldest in January.

  • Gardeners get about 165 frost-free days, with the last spring freeze near April 30 - plan the planting calendar around it, not the regional average.
  • Energy bills track 5,145 heating and 367 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: Roan Mtn, TN

An annual average temperature of 52°F, ranging from a mean daily high of 64°F to a mean daily low of 40°F is what the NOAA 1991–2020 climate normals report for Roan Mtn, Tennessee. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00407770 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Roan Mtn receives roughly 52.5 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 165 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 30 and the first fall freeze near October 12. For energy use, 5,145 heating degree days and 367 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Roan Mtn scores 54/100 (Moderate), 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 Roan Mtn, TN?
The average annual temperature in Roan Mtn, Tennessee is 52°F. The warmest month averages 80°F (26°C) and the coldest averages 22°F (-5°C).
How much rain does Roan Mtn get?
Roan Mtn receives 52.5 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Roan Mtn?
Roan Mtn has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Roan Mtn?
Roan Mtn has approximately 165 frost-free days per year, with the last spring freeze around April 30 and the first fall freeze around October 12.
How much energy does heating and cooling require in Roan Mtn?
Roan Mtn has 5,145 heating degree days and 367 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 Roan Mtn climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00407770 near Roan Mtn.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00407770. For informational purposes only.

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.