Port Arthur, TX Weather & Climate Normals
Port Arthur's real weather, in one number
Port Arthur, TX scores 58/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 6 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Port Arthur's hottest and coldest months
Port Arthur's hottest month is Aug, averaging 84°F; its coldest is Jan, averaging 54°F, a 30.1°F swing across the year, a middling gap by national standards.
Port Arthur's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 64°F | 44°F | 5.32in |
| Feb | 67°F | 48°F | 3.09in |
| Mar | 73°F | 53°F | 3.63in |
| Apr | 79°F | 60°F | 3.92in |
| May | 86°F | 67°F | 4.7in |
| Jun | 91°F | 73°F | 6.7in |
| Jul | 93°F | 75°F | 6.85in |
| Aug | 93°F | 74°F | 6.89in |
| Sep | 90°F | 71°F | 6.69in |
| Oct | 82°F | 61°F | 5.47in |
| Nov | 72°F | 52°F | 3.89in |
| Dec | 66°F | 46°F | 4.98in |
Feb, Mar, Apr, Oct, Nov, and Dec are the best time to see Port Arthur at its mildest; the rest of the year, plan around Aug's heat and Jan's cold.
Rain and snow in Port Arthur
Over a typical year, Port Arthur sees about 62.13in of precipitation a year across roughly 108 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Port Arthur ranks
Port Arthur ranks 603 of 4876 US cities in this dataset for comfort score, and 55 of 384 within TX. About 55,799 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Port Arthur Se Tx Ap, TX US, 8.3 miles from Port Arthur, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is