Climate Comfort Score
89/100
Excellent
NOAA 1991–2020 normals 73°F annual avg Public-domain federal data
Port Mansfield, TX Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 73°F
- Avg annual temp
- 89/100
- Comfort score
- 25.3"
- Annual precip
- -11d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Port Mansfield
Port Mansfield, Texas averages 73°F a year and scores 89/100 on the comfort index - excellent, milder than 93% of U.S. cities.
- 73°F
- yearly average temperature, NOAA normal
- 89/100
- comfort score, milder than 93% of U.S. cities
- 25.3"
- precipitation, annual total
- -11 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
73°F (23°C)
Avg High
81°F
Avg Low
66°F
Annual Precip
25.3"
Annual Snow
0.1"
Comfort Score
89/100
Excellent
Avg Annual Temperature
73°F
30-year mean (NOAA NCEI)
Annual Precipitation
25.3"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Port Mansfield) 89.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Port Mansfield area.
How Port Mansfield compares to every U.S. city
Port Mansfield's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
89 Top 7% higher than 93% of 6,915 US cities
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 Port Mansfield
MethodologyPort Mansfield'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.
- 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 68°F (20°C) | 50°F (10°C) | 59°F (15°C) | 1.1" | 0.0" | 0.7 | 0.1 |
| February | 71°F (22°C) | 55°F (13°C) | 63°F (17°C) | 1.8" | 0.0" | 0.6 | 0.2 |
| March | 76°F (24°C) | 61°F (16°C) | 68°F (20°C) | 1.3" | 0.0" | 0.0 | 0.4 |
| April | 81°F (27°C) | 67°F (19°C) | 74°F (23°C) | 1.4" | 0.0" | 0.0 | 1.3 |
| May | 85°F (30°C) | 73°F (23°C) | 79°F (26°C) | 2.4" | 0.0" | 0.0 | 2.0 |
| June | 90°F (32°C) | 77°F (25°C) | 83°F (28°C) | 2.0" | 0.0" | 0.0 | 11.4 |
| July | 91°F (33°C) | 78°F (25°C) | 84°F (29°C) | 2.4" | 0.0" | 0.0 | 17.4 |
| August | 92°F (33°C) | 78°F (25°C) | 85°F (29°C) | 1.1" | 0.0" | 0.0 | 22.0 |
| September | 89°F (31°C) | 74°F (23°C) | 81°F (27°C) | 5.4" | 0.0" | 0.0 | 10.1 |
| October | 84°F (29°C) | 68°F (20°C) | 76°F (24°C) | 3.1" | 0.0" | 0.0 | 2.7 |
| November | 76°F (25°C) | 60°F (15°C) | 68°F (20°C) | 2.0" | 0.0" | 0.0 | 0.4 |
| December | 70°F (21°C) | 52°F (11°C) | 61°F (16°C) | 1.3" | 0.1" | 0.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.1"
6.3 days with precipitation
February 1.8"
5.1 days with precipitation
March 1.3"
4.4 days with precipitation
April 1.4"
3.6 days with precipitation
May 2.4"
4.2 days with precipitation
June 2.0"
4.1 days with precipitation
July 2.4"
3.6 days with precipitation
August 1.1"
2.8 days with precipitation
September 5.4"
8.7 days with precipitation
October 3.1"
5.5 days with precipitation
November 2.0"
4.8 days with precipitation
December 1.3"
Snow: 0.1"
5.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
January 1
50% probability date
Last Spring Freeze
January 12
50% probability date
Growing Season
-11 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
674
Higher = more heating needed
Cooling Degree Days
3,755
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
What Port Mansfield's climate means for you
Port Mansfield runs 73°F a year - peaking in August, coldest in January.
- Gardeners get about -11 frost-free days, with the last spring freeze near January 12 - plan the planting calendar around it, not the regional average.
- Energy bills track 674 heating and 3,755 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: Port Mansfield, TX
Port Mansfield, Texas runs an annual average of 73°F, ranging from a mean daily high of 81°F to a mean daily low of 66°F, per NOAA's 1991–2020 climate normals. August is typically the warmest month of the year, while January is the coldest. Drawn from station USC00417184, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Port Mansfield receives roughly 25.3 inches of precipitation each year, with negligible snowfall. The frost-free season averages -11 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near January 12 and the first fall freeze near January 1. For energy use, 674 heating degree days and 3,755 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 Mansfield scores 89/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, August-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Port Mansfield, TX? ▼
The average annual temperature in Port Mansfield, Texas is 73°F. The warmest month averages 92°F (33°C) and the coldest averages 50°F (10°C).
How much rain does Port Mansfield get? ▼
Port Mansfield receives 25.3 inches of precipitation annually, including 0.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Port Mansfield? ▼
Port Mansfield has a climate comfort score of 89/100 (Excellent), milder than 93% of U.S. cities in the PlainClimate database.
When is the growing season in Port Mansfield? ▼
Port Mansfield has approximately -11 frost-free days per year, with the last spring freeze around January 12 and the first fall freeze around January 1.
How much energy does heating and cooling require in Port Mansfield? ▼
Port Mansfield has 674 heating degree days and 3,755 cooling degree days annually, a cooling-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 Port Mansfield climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00417184 near Port Mansfield.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00417184. 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
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.