Port Isabel Cameron, TX Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Port Isabel Cameron's primary NOAA station, PORT ISABEL CAMERON AP.
The climate verdict for Port Isabel Cameron
Warm-season cooling demand defines Port Isabel Cameron, Texas, running at more than twice its heating total. The NOAA normal records an annual average of 75°F. August is the warmest month at 85°F and January the coldest at 61°F.
- 75°F
- annual average temperature (NOAA normal)
- 23.3"
- yearly precipitation total
Port Isabel Cameron: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00012957 · Port Isabel Cameron, TX 75°F mean · 23.3" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-DRY · SWING-NARROW · COMF-UNK · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 75°F
- RANK-WARM #6,792
- PHOTO-FINISH ≈ Santa Rosa
- PRCP-DRY 23.3"
- SWING-NARROW 24°F
- COMF-UNK Comfort n/a
- LOAD-COOL 4,140 CDD
- STN-1 USW00012957
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Santa Rosa, TX ( -0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every TX station list.
- Port Isabel Cam… (this station) 75°F
- Hot Weslaco, TX 75°F
- Near Santa Rosa, TX 75°F
- Near Harlingen Rio G…, TX 75°F
- Cold Raymondville, TX 74°F
Port Isabel Cameron sits in Texas, the #4 hottest U.S. state at 66.2°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Port Isabel Cameron
Port Isabel Cameron: 69/100 · grade C
Port Isabel Cameron publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Port Isabel Cameron, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 74.8°F · 7.3° from 67.5°F | 77/100 · B |
| Normal heat + freeze calendar | 116 calendar days | 67/100 · C |
| Precipitation balance | 23.3 in · 11.8 from 35 in | 59/100 · C |
Port Isabel Cameron · 2026-08-04 · NOAA NCEI Climate Normals · method .
Port Isabel Cameron's normals sit in a dry climate class: BSh
Precipitation is low relative to temperature but above true desert thresholds: hot semi-arid steppe (BSh). Class BSh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot semi-arid steppe.
- Köppen code
- BSh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 85.4°F
- Coldest month
- 61.1°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · cooling-led station
Where Port Isabel Cameron sits across the climate record
Three NOAA fields for Port Isabel Cameron's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 1% warmest
- Among 6,861 stations, Port Isabel Cameron sits in the warmer third of annual means.
- Annual precipitation
- 32nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 95%
- Warmest-to-coldest month gap for Port Isabel Cameron is compact versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 70°F (21°C) | 52°F (11°C) | 61°F (16°C) | 1.0" | 0.5 | 0.0 |
| February | 74°F (23°C) | 56°F (13°C) | 65°F (18°C) | 1.2" | 0.2 | 0.4 |
| March | 78°F (26°C) | 62°F (16°C) | 70°F (21°C) | 1.1" | 0.0 | 1.0 |
| April | 83°F (28°C) | 68°F (20°C) | 75°F (24°C) | 1.3" | 0.0 | 3.8 |
| May | 88°F (31°C) | 73°F (23°C) | 81°F (27°C) | 2.1" | 0.0 | 11.7 |
| June | 92°F (33°C) | 77°F (25°C) | 84°F (29°C) | 2.7" | 0.0 | 23.4 |
| July | 92°F (34°C) | 78°F (25°C) | 85°F (30°C) | 1.4" | 0.0 | 26.6 |
| August | 93°F (34°C) | 77°F (25°C) | 85°F (30°C) | 1.3" | 0.0 | 29.1 |
| September | 90°F (32°C) | 75°F (24°C) | 83°F (28°C) | 5.3" | 0.0 | 17.9 |
| October | 85°F (30°C) | 69°F (20°C) | 77°F (25°C) | 2.7" | 0.0 | 7.1 |
| November | 78°F (26°C) | 61°F (16°C) | 69°F (21°C) | 1.9" | 0.0 | 0.3 |
| December | 72°F (22°C) | 54°F (12°C) | 63°F (17°C) | 1.3" | 0.2 | 0.0 |
The year, day by day
The year in Port Isabel Cameron runs from a mild 51°F around January 4 to 94°F at the peak near August 8, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 27 through September 19, covering 116 dates. The broader mild season, normal highs of 70°F or more, runs January 1 to December 31.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 51°F around January 4.
Where the wet dates fall
The likeliest wet date is September 15, when 31% of years recorded at least a hundredth of an inch. The driest is August 3 at 11%. Summed across the calendar, that is about 74 wet dates a year.
The widest day
January 2 carries the biggest normal gap between afternoon and dawn, 19°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Port Isabel Cameron.
Where Port Isabel Cameron Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 116 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 19°F.
Port Isabel Cameron earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
7.8 days with precipitation
6.1 days with precipitation
4.8 days with precipitation
4.4 days with precipitation
3.9 days with precipitation
5.4 days with precipitation
4.7 days with precipitation
4.0 days with precipitation
9.8 days with precipitation
7.4 days with precipitation
7.7 days with precipitation
7.4 days with precipitation
Port Isabel Cameron spreads its precipitation across the year
Neither half of the year dominates here: June through August take 23% of the annual total and December through February 15%, with neither reaching the 35% that would mark a distinct wet season. Port Isabel Cameron has no dry season to plan around, though it does carry an unusually narrow 24.3°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 5.3" and January 1.0". The three wettest months together take 46% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Port Isabel Cameron's precipitation splits across the calendar
About 73 days a year record measurable precipitation here, carrying 23.3" between them, or roughly 0.32 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Frost Dates & Growing Season
First Fall Freeze
January 4
50% probability date
Last Spring Freeze
January 8
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
527
Higher = more heating needed
Cooling Degree Days
4,140
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Port Isabel Cameron on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (75°F here).
- Yuma Proving Ground, AZ 75°F · 0.0°F off
- Gila Bend, AZ 75°F · 0.1°F off
- Immokalee, FL 75°F · 0.1°F off
- Okeechobee, FL 75°F · 0.2°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (23.3" here), excluding temperature-peer places.
- Big Sky, MT 23.3" · 0.1" off
- Baudette, MN 23.2" · 0.1" off
- Forman, ND 23.2" · 0.1" off
- Winner, SD 23.2" · 0.1" off
Data-derived climate profile
How Port Isabel Cameron's climate pattern fits together
cooling led · moderate · low swing
Warm-season load persists through a relatively even calendar in Port Isabel Cameron. Cooling totals 4,140 degree days, more than double the 527 heating measure, and the 24.3°F seasonal range is compact rather than sharply divided.
Port Isabel Cameron's 23.3 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
Temperature varies within a narrow 24.3°F band across the normal year. August and January mark the typical warm and cold ends of the calendar. The annual average is 75°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
A frost-free growing-season length is not available for Port Isabel Cameron. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
These labels group NOAA 1991-2020 normals from Port Isabel Cameron's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. For Port Isabel Cameron that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Port Isabel Cameron's climate
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Port Isabel Cameron's primary station: PORT ISABEL CAMERON AP (USW00012957). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Port Isabel Cameron; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Port Isabel Cameron comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.