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2026 data Public-data reference. official source

Alamo, TN Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →

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

Alamo, Tennessee has an average annual temperature of 60°F and a climate comfort score of 72/100 (Good). Annual precipitation totals 53.6", including 3.7" of snow. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

60°F (15°C)

Avg High

69°F

Avg Low

50°F

Annual Precip

53.6"

Annual Snow

3.7"

Comfort Score

72/100

Good

Climate Comfort Score

72/100

Good

Avg Annual Temperature

60°F

30-year mean (NOAA NCEI)

Annual Precipitation

53.6"

Plus 3.7" of snow

Comfort score vs national 100-point ceiling (Alamo) 72.0%
National median (≈55)

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

Warming context for Alamo

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Alamo 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 51°F (10°C) 33°F (0°C) 42°F (5°C)
March 60°F (15°C) 40°F (5°C) 50°F (10°C)
April 70°F (21°C) 50°F (10°C) 60°F (15°C)
May 78°F (26°C) 59°F (15°C) 69°F (20°C)
June 86°F (30°C) 67°F (20°C) 77°F (25°C)
July 89°F (31°C) 70°F (21°C) 79°F (26°C)
August 88°F (31°C) 68°F (20°C) 78°F (26°C)
September 83°F (28°C) 60°F (16°C) 72°F (22°C)
October 72°F (22°C) 49°F (9°C) 61°F (16°C)
November 60°F (15°C) 39°F (4°C) 50°F (10°C)
December 50°F (10°C) 33°F (0°C) 41°F (5°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 4.2"

Snow: 1.3"

8.1 days with precipitation

February 4.3"

Snow: 1.5"

7.8 days with precipitation

March 5.2"

Snow: 0.7"

9.8 days with precipitation

April 4.7"

9.1 days with precipitation

May 5.4"

9.9 days with precipitation

June 4.5"

7.1 days with precipitation

July 3.5"

6.9 days with precipitation

August 3.8"

6.6 days with precipitation

September 3.8"

5.7 days with precipitation

October 3.8"

7.5 days with precipitation

November 4.9"

7.8 days with precipitation

December 5.4"

Snow: 0.2"

8.9 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 4

50% probability date

Last Spring Freeze

March 28

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

3,652

Higher = more heating needed

Cooling Degree Days

1,680

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Related Data

Climate Guides

Climate Insight: Alamo, TN

The NOAA 1991–2020 climate normals describe Alamo, Tennessee as a location with an annual average temperature of 60°F, ranging from a mean daily high of 69°F to a mean daily low of 50°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00400049, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Alamo receives roughly 53.6 inches of precipitation each year, with 3.7 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near March 28 and the first fall freeze near November 4. For energy use, 3,652 heating degree days and 1,680 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Alamo scores 72/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Alamo, TN?
The average annual temperature in Alamo, Tennessee is 60°F. The warmest month averages 89°F (31°C) and the coldest averages 29°F (-2°C).
How much rain does Alamo get?
Alamo receives 53.6 inches of precipitation annually, including 3.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Alamo?
Alamo has a climate comfort score of 72/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Alamo?
Growing season data is not available for Alamo.
How much energy does heating and cooling require in Alamo?
Alamo has 3,652 heating degree days and 1,680 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Alamo climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00400049. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00400049. For informational purposes only.

Related

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial