PlainClimate
NOAA 1991–2020 normals 65°F annual avg Public-domain federal data

FT Thomas, AZ Climate

Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →

65°F
Avg annual temp
78/100
Comfort score
10.2"
Annual precip
219d
Growing season

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

The climate verdict for FT Thomas

FT Thomas, Arizona averages 65°F a year and scores 78/100 on the comfort index - good, milder than 74% of U.S. cities.

65°F
yearly average temperature, NOAA normal
78/100
comfort score, milder than 74% of U.S. cities
10.2"
yearly precipitation total
219 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

65°F (18°C)

Avg High

82°F

Avg Low

47°F

Annual Precip

10.2"

Comfort Score

78/100

Good

Climate Comfort Score

78/100

Good

Avg Annual Temperature

65°F

30-year mean (NOAA NCEI)

Annual Precipitation

10.2"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (FT Thomas) 78.0%
National median (63)

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

How FT Thomas compares to every U.S. city

FT Thomas's comfort score vs. all U.S. cities

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

78 Top 26% higher than 74% 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 FT Thomas

Methodology

FT Thomas's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running 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 61°F (16°C) 28°F (-2°C) 45°F (7°C)
February 66°F (19°C) 32°F (0°C) 49°F (9°C)
March 74°F (24°C) 37°F (3°C) 56°F (13°C)
April 82°F (28°C) 44°F (6°C) 63°F (17°C)
May 91°F (33°C) 53°F (11°C) 72°F (22°C)
June 100°F (38°C) 62°F (17°C) 81°F (27°C)
July 100°F (38°C) 71°F (21°C) 85°F (30°C)
August 98°F (36°C) 69°F (20°C) 83°F (28°C)
September 93°F (34°C) 62°F (17°C) 78°F (25°C)
October 84°F (29°C) 48°F (9°C) 66°F (19°C)
November 71°F (22°C) 35°F (2°C) 53°F (12°C)
December 60°F (16°C) 28°F (-2°C) 44°F (7°C)

Monthly Precipitation

Average monthly rainfall

January 1.0"

4.4 days with precipitation

February 1.0"

4.0 days with precipitation

March 0.6"

2.8 days with precipitation

April 0.3"

1.6 days with precipitation

May 0.4"

1.5 days with precipitation

June 0.1"

1.2 days with precipitation

July 1.7"

6.5 days with precipitation

August 1.9"

7.0 days with precipitation

September 1.1"

4.2 days with precipitation

October 0.7"

2.8 days with precipitation

November 0.5"

2.9 days with precipitation

December 0.9"

4.2 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 6

50% probability date

Last Spring Freeze

April 1

50% probability date

Growing Season

219 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

2,592

Higher = more heating needed

Cooling Degree Days

2,431

Higher = more cooling needed

Warmest Month

July

Coldest Month

December

What FT Thomas's climate means for you

FT Thomas runs 65°F a year - peaking in July, coldest in December.

  • Gardeners get about 219 frost-free days, with the last spring freeze near April 1 - plan the planting calendar around it, not the regional average.
  • Energy bills track 2,592 heating and 2,431 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: FT Thomas, AZ

FT Thomas, Arizona runs an annual average of 65°F, ranging from a mean daily high of 82°F to a mean daily low of 47°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while December is the coldest. Drawn from station USC00023150, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Beyond temperature, FT Thomas averages 10.2 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 219 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 1 and the first fall freeze near November 6. Turning to energy use, 2,592 heating degree days and 2,431 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, FT Thomas scores 78/100 (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 December-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 FT Thomas, AZ?
The average annual temperature in FT Thomas, Arizona is 65°F. The warmest month averages 100°F (38°C) and the coldest averages 28°F (-2°C).
How much rain does FT Thomas get?
FT Thomas receives 10.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for FT Thomas?
FT Thomas has a climate comfort score of 78/100 (Good), milder than 74% of U.S. cities in the PlainClimate database.
When is the growing season in FT Thomas?
FT Thomas has approximately 219 frost-free days per year, with the last spring freeze around April 1 and the first fall freeze around November 6.
How much energy does heating and cooling require in FT Thomas?
FT Thomas has 2,592 heating degree days and 2,431 cooling degree days annually, a fairly balanced heating/cooling split. 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 FT Thomas climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00023150 near FT Thomas.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00023150. 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.