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2026 data Public-data reference. official source

Port O'connor, TX Climate

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

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

Port O'connor, Texas has an average annual temperature of 72°F and a climate comfort score of 72/100 (Good). Annual precipitation totals N/A. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

72°F (22°C)

Avg High

79°F

Avg Low

64°F

Annual Precip

N/A

Comfort Score

72/100

Good

Climate Comfort Score

72/100

Good

Avg Annual Temperature

72°F

30-year mean (NOAA NCEI)

Annual Precipitation

N/A

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Port O'connor) 72.0%
National median (≈55)

PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Port O'connor area.

Warming context for Port O'connor

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Port O'connor 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 65°F (18°C) 47°F (8°C) 56°F (13°C)
February 67°F (19°C) 50°F (10°C) 59°F (15°C)
March 72°F (22°C) 57°F (14°C) 65°F (18°C)
April 77°F (25°C) 64°F (18°C) 71°F (21°C)
May 82°F (28°C) 72°F (22°C) 77°F (25°C)
June 87°F (31°C) 77°F (25°C) 82°F (28°C)
July 89°F (32°C) 79°F (26°C) 84°F (29°C)
August 90°F (32°C) 79°F (26°C) 85°F (29°C)
September 88°F (31°C) 76°F (24°C) 82°F (28°C)
October 84°F (29°C) 68°F (20°C) 76°F (24°C)
November 75°F (24°C) 55°F (13°C) 65°F (18°C)
December 68°F (20°C) 49°F (9°C) 59°F (15°C)

Monthly Precipitation

Average monthly rainfall

January N/A
February N/A
March N/A
April N/A
May N/A
June N/A
July N/A
August N/A
September N/A
October N/A
November N/A
December N/A

Frost Dates & Growing Season

First Fall Freeze

December 27

50% probability date

Last Spring Freeze

February 4

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

908

Higher = more heating needed

Cooling Degree Days

3,301

Higher = more cooling needed

Warmest Month

August

Coldest Month

January

Related Data

Climate Guides

Climate Insight: Port O'connor, TX

The NOAA 1991–2020 climate normals describe Port O'connor, Texas as a location with an annual average temperature of 72°F, ranging from a mean daily high of 79°F to a mean daily low of 64°F. August is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00417186, 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. Port O'connor receives roughly an uncharted amount of precipitation each year, predominantly as rainfall. Growing-season length varies with elevation and microclimate, with the last spring freeze near February 4 and the first fall freeze near December 27. For energy use, 908 heating degree days and 3,301 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Port O'connor 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 August-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 Port O'connor, TX?
The average annual temperature in Port O'connor, Texas is 72°F. The warmest month averages 90°F (32°C) and the coldest averages 47°F (8°C).
How much rain does Port O'connor get?
Port O'connor receives an unknown amount of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Port O'connor?
Port O'connor 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 Port O'connor?
Growing season data is not available for Port O'connor.
How much energy does heating and cooling require in Port O'connor?
Port O'connor has 908 heating degree days and 3,301 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 Port O'connor 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 USC00417186. 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: USC00417186. For informational purposes only.

Related

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