Climate Comfort Score
83/100
Excellent
NOAA 1991–2020 normals 59°F annual avg Public-domain federal data
Old Hickory Dam, TN Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 59°F
- Avg annual temp
- 83/100
- Comfort score
- 47.9"
- Annual precip
- 201d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Old Hickory Dam
Old Hickory Dam, Tennessee averages 59°F a year and scores 83/100 on the comfort index - excellent, milder than 85% of U.S. cities.
- 59°F
- annual average temperature (NOAA normal)
- 83/100
- comfort score, milder than 85% of U.S. cities
- 47.9"
- annual precipitation · 1" snow
- 201 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
59°F (15°C)
Avg High
70°F
Avg Low
47°F
Annual Precip
47.9"
Annual Snow
1.2"
Comfort Score
83/100
Excellent
Avg Annual Temperature
59°F
30-year mean (NOAA NCEI)
Annual Precipitation
47.9"
Plus 1.2" of snow
Comfort score vs national 100-point ceiling (Old Hickory Dam) 83.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Old Hickory Dam area.
How Old Hickory Dam compares to every U.S. city
Old Hickory Dam's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
83 Top 15% higher than 85% 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 Old Hickory Dam
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Old Hickory Dam'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 | 47°F (8°C) | 27°F (-3°C) | 37°F (3°C) | 3.7" | 0.6" | 22.8 | 0.0 |
| February | 51°F (11°C) | 30°F (-1°C) | 41°F (5°C) | 4.3" | 0.3" | 17.0 | 0.0 |
| March | 61°F (16°C) | 37°F (3°C) | 49°F (9°C) | 4.6" | 0.2" | 10.6 | 0.0 |
| April | 71°F (22°C) | 45°F (7°C) | 58°F (15°C) | 4.7" | 0.0" | 2.2 | 0.2 |
| May | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 4.5" | 0.0" | 0.0 | 3.3 |
| June | 86°F (30°C) | 64°F (18°C) | 75°F (24°C) | 3.8" | 0.0" | 0.0 | 11.9 |
| July | 90°F (32°C) | 67°F (19°C) | 79°F (26°C) | 4.0" | 0.0" | 0.0 | 19.2 |
| August | 90°F (32°C) | 67°F (19°C) | 79°F (26°C) | 3.4" | 0.0" | 0.0 | 15.0 |
| September | 83°F (29°C) | 60°F (15°C) | 72°F (22°C) | 3.7" | 0.0" | 0.0 | 8.9 |
| October | 72°F (22°C) | 47°F (8°C) | 60°F (15°C) | 3.3" | 0.0" | 0.9 | 0.9 |
| November | 60°F (16°C) | 36°F (2°C) | 48°F (9°C) | 3.4" | 0.0" | 14.7 | 0.0 |
| December | 50°F (10°C) | 29°F (-2°C) | 40°F (4°C) | 4.4" | 0.1" | 17.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 3.7"
Snow: 0.6"
9.5 days with precipitation
February 4.3"
Snow: 0.3"
8.9 days with precipitation
March 4.6"
Snow: 0.2"
10.5 days with precipitation
April 4.7"
10.0 days with precipitation
May 4.5"
9.8 days with precipitation
June 3.8"
9.3 days with precipitation
July 4.0"
8.8 days with precipitation
August 3.4"
6.9 days with precipitation
September 3.7"
6.9 days with precipitation
October 3.3"
7.1 days with precipitation
November 3.4"
8.2 days with precipitation
December 4.4"
Snow: 0.1"
9.4 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 29
50% probability date
Last Spring Freeze
April 11
50% probability date
Growing Season
201 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,900
Higher = more heating needed
Cooling Degree Days
1,571
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
What Old Hickory Dam's climate means for you
Old Hickory Dam runs 59°F a year - peaking in August, coldest in January.
- Gardeners get about 201 frost-free days, with the last spring freeze near April 11 - plan the planting calendar around it, not the regional average.
- Energy bills track 3,900 heating and 1,571 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: Old Hickory Dam, TN
In Old Hickory Dam, Tennessee, the NOAA 1991–2020 climate normals put the annual average temperature at 59°F, ranging from a mean daily high of 70°F to a mean daily low of 47°F. August is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00406803, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Old Hickory Dam averages 47.9 inches of precipitation annually, with 1.2 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 201 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 11 and the first fall freeze near October 29. Turning to energy use, 3,900 heating degree days and 1,571 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Old Hickory Dam scores 83/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings August-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Old Hickory Dam, TN? ▼
The average annual temperature in Old Hickory Dam, Tennessee is 59°F. The warmest month averages 90°F (32°C) and the coldest averages 27°F (-3°C).
How much rain does Old Hickory Dam get? ▼
Old Hickory Dam receives 47.9 inches of precipitation annually, including 1.2 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Old Hickory Dam? ▼
Old Hickory Dam has a climate comfort score of 83/100 (Excellent), milder than 85% of U.S. cities in the PlainClimate database.
When is the growing season in Old Hickory Dam? ▼
Old Hickory Dam has approximately 201 frost-free days per year, with the last spring freeze around April 11 and the first fall freeze around October 29.
How much energy does heating and cooling require in Old Hickory Dam? ▼
Old Hickory Dam has 3,900 heating degree days and 1,571 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 Old Hickory Dam climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00406803 near Old Hickory Dam.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00406803. 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.