Climate Comfort Score
67/100
Good
2026 data Public-data reference. official source
Port Arthur SE TX, TX Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Port Arthur SE TX, Texas has an average annual temperature of 70°F and a climate comfort score of 67/100 (Good). Annual precipitation totals 62.1". Based on NOAA 30-year normals (1991–2020).
Avg Temperature
70°F (21°C)
Avg High
80°F
Avg Low
60°F
Annual Precip
62.1"
Comfort Score
67/100
Good
Avg Annual Temperature
70°F
30-year mean (NOAA NCEI)
Annual Precipitation
62.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Port Arthur SE TX) 67.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Port Arthur SE TX area.
Warming context for Port Arthur SE TX
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Port Arthur SE TX captures average conditions across the spread shown — the most recent decade is 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 | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 64°F (18°C) | 44°F (7°C) | 54°F (12°C) | 5.3" | 3.6 | 0.0 |
| February | 67°F (20°C) | 48°F (9°C) | 58°F (14°C) | 3.1" | 1.4 | 0.0 |
| March | 73°F (23°C) | 53°F (12°C) | 63°F (17°C) | 3.6" | 0.5 | 0.0 |
| April | 79°F (26°C) | 60°F (15°C) | 69°F (21°C) | 3.9" | 0.0 | 0.1 |
| May | 86°F (30°C) | 67°F (20°C) | 77°F (25°C) | 4.7" | 0.0 | 3.5 |
| June | 91°F (33°C) | 73°F (23°C) | 82°F (28°C) | 6.7" | 0.0 | 20.3 |
| July | 93°F (34°C) | 75°F (24°C) | 84°F (29°C) | 6.8" | 0.0 | 25.4 |
| August | 93°F (34°C) | 74°F (24°C) | 84°F (29°C) | 6.9" | 0.0 | 25.8 |
| September | 90°F (32°C) | 71°F (21°C) | 80°F (27°C) | 6.7" | 0.0 | 15.5 |
| October | 82°F (28°C) | 61°F (16°C) | 72°F (22°C) | 5.5" | 0.0 | 2.4 |
| November | 72°F (22°C) | 52°F (11°C) | 62°F (17°C) | 3.9" | 0.6 | 0.0 |
| December | 66°F (19°C) | 46°F (8°C) | 56°F (13°C) | 5.0" | 2.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 5.3"
9.6 days with precipitation
February 3.1"
8.6 days with precipitation
March 3.6"
7.6 days with precipitation
April 3.9"
7.2 days with precipitation
May 4.7"
7.2 days with precipitation
June 6.7"
10.7 days with precipitation
July 6.8"
11.8 days with precipitation
August 6.9"
11.3 days with precipitation
September 6.7"
8.9 days with precipitation
October 5.5"
7.5 days with precipitation
November 3.9"
7.6 days with precipitation
December 5.0"
9.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
December 7
50% probability date
Last Spring Freeze
February 14
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,262
Higher = more heating needed
Cooling Degree Days
3,076
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 74% | 9.5 | 44% | 40% |
| February | 75% | 10.1 | -796% | -796% |
| March | 75% | 10.2 | 39% | 32% |
| April | 75% | 10.0 | 43% | 23% |
| May | 77% | 8.0 | 41% | 9% |
| June | 78% | 6.7 | 46% | 7% |
| July | 78% | 5.8 | 55% | 5% |
| August | 78% | 6.3 | 55% | 7% |
| September | 74% | 7.4 | 62% | 9% |
| October | 76% | 8.2 | 57% | 19% |
| November | 76% | 8.7 | 49% | 29% |
| December | 75% | 9.3 | 44% | 40% |
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Port Arthur SE TX, TX
The NOAA 1991–2020 climate normals describe Port Arthur SE TX, Texas as a location with an annual average temperature of 70°F, ranging from a mean daily high of 80°F to a mean daily low of 60°F. August is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USW00012917, 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 Arthur SE TX receives roughly 62.1 inches of precipitation each year, predominantly as rainfall. Growing-season length varies with elevation and microclimate, with the last spring freeze near February 14 and the first fall freeze near December 7. For energy use, 1,262 heating degree days and 3,076 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 Arthur SE TX scores 67/100 (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 Arthur SE TX, TX? ▼
The average annual temperature in Port Arthur SE TX, Texas is 70°F. The warmest month averages 93°F (34°C) and the coldest averages 44°F (7°C).
How much rain does Port Arthur SE TX get? ▼
Port Arthur SE TX receives 62.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Port Arthur SE TX? ▼
Port Arthur SE TX has a climate comfort score of 67/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Port Arthur SE TX? ▼
Growing season data is not available for Port Arthur SE TX.
How much energy does heating and cooling require in Port Arthur SE TX? ▼
Port Arthur SE TX has 1,262 heating degree days and 3,076 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 Arthur SE TX 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 USW00012917. 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: USW00012917. 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
