PlainClimate
NOAA 1991–2020 normals 59°F annual avg Public-domain federal data

Big Sandy, TN Climate

Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →

59°F
Avg annual temp
73/100
Comfort score
51.8"
Annual precip
204d
Growing season

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

The climate verdict for Big Sandy

Big Sandy, Tennessee averages 59°F a year and scores 73/100 on the comfort index - good, milder than 68% of U.S. cities.

59°F
annual average temperature (NOAA normal)
73/100
comfort score, milder than 68% of U.S. cities
51.8"
annual precipitation · 4" snow
204 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

49°F

Annual Precip

51.8"

Annual Snow

4.1"

Comfort Score

73/100

Good

Climate Comfort Score

73/100

Good

Avg Annual Temperature

59°F

30-year mean (NOAA NCEI)

Annual Precipitation

51.8"

Plus 4.1" of snow

Comfort score vs national 100-point ceiling (Big Sandy) 73.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Big Sandy area.

How Big Sandy compares to every U.S. city

Big Sandy's comfort score vs. all U.S. cities

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

73 Top 32% higher than 68% 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%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). This entry sits in this band. 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 Big Sandy

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Big Sandy captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.

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 47°F (8°C) 29°F (-2°C) 38°F (3°C)
February 52°F (11°C) 33°F (0°C) 42°F (6°C)
March 62°F (17°C) 39°F (4°C) 50°F (10°C)
April 72°F (22°C) 47°F (8°C) 59°F (15°C)
May 79°F (26°C) 57°F (14°C) 68°F (20°C)
June 86°F (30°C) 66°F (19°C) 76°F (24°C)
July 88°F (31°C) 69°F (21°C) 79°F (26°C)
August 88°F (31°C) 68°F (20°C) 78°F (25°C)
September 82°F (28°C) 60°F (16°C) 71°F (22°C)
October 72°F (22°C) 48°F (9°C) 60°F (16°C)
November 60°F (16°C) 38°F (4°C) 49°F (10°C)
December 50°F (10°C) 32°F (0°C) 41°F (5°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 4.0"

Snow: 1.8"

10.6 days with precipitation

February 4.7"

Snow: 1.0"

11.1 days with precipitation

March 4.6"

Snow: 0.4"

12.2 days with precipitation

April 5.1"

Snow: 0.3"

11.6 days with precipitation

May 5.3"

11.1 days with precipitation

June 3.8"

9.1 days with precipitation

July 4.1"

9.0 days with precipitation

August 3.1"

9.1 days with precipitation

September 3.3"

6.9 days with precipitation

October 3.9"

8.5 days with precipitation

November 4.8"

9.8 days with precipitation

December 5.2"

Snow: 0.6"

11.7 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 29

50% probability date

Last Spring Freeze

April 8

50% probability date

Growing Season

204 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

3,658

Higher = more heating needed

Cooling Degree Days

1,618

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Big Sandy's climate means for you

Big Sandy runs 59°F a year - peaking in July, coldest in January.

  • Gardeners get about 204 frost-free days, with the last spring freeze near April 8 - plan the planting calendar around it, not the regional average.
  • Energy bills track 3,658 heating and 1,618 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: Big Sandy, TN

Big Sandy, Tennessee runs an annual average of 59°F, ranging from a mean daily high of 70°F to a mean daily low of 49°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 USC00400705, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Big Sandy sees about 51.8 inches of precipitation a year, with 4.1 inches typically falling as snow. The frost-free season averages 204 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 8 and the first fall freeze near October 29. On the energy side, 3,658 heating degree days and 1,618 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Big Sandy scores 73/100 (Good), 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 July-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 Big Sandy, TN?
The average annual temperature in Big Sandy, Tennessee is 59°F. The warmest month averages 88°F (31°C) and the coldest averages 29°F (-2°C).
How much rain does Big Sandy get?
Big Sandy receives 51.8 inches of precipitation annually, including 4.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Big Sandy?
Big Sandy has a climate comfort score of 73/100 (Good), milder than 68% of U.S. cities in the PlainClimate database.
When is the growing season in Big Sandy?
Big Sandy has approximately 204 frost-free days per year, with the last spring freeze around April 8 and the first fall freeze around October 29.
How much energy does heating and cooling require in Big Sandy?
Big Sandy has 3,658 heating degree days and 1,618 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 Big Sandy climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00400705 near Big Sandy.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00400705. 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.