Climate for Port Arthur, Texas
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Average Temperatures for Port Arthur
| Month | Low | High |
|---|---|---|
| Jan | 42.9°F | 61.5°F |
| Feb | 45.9°F | 65.3°F |
| Mar | 52.4°F | 72.0°F |
| Apr | 58.6°F | 77.8°F |
| May | 66.4°F | 84.3°F |
| Jun | 72.3°F | 89.4°F |
| Jul | 73.8°F | 91.6°F |
| Aug | 73.2°F | 91.7°F |
| Sept | 69.4°F | 88.0°F |
| Oct | 59.6°F | 80.5°F |
| Nov | 50.8°F | 70.9°F |
| Dec | 44.5°F | 63.9°F |
Port Arthur's coldest month is January when the average temperature overnight is 42.9°F. In August, the warmest month, the average day time temperature rises to 91.7°F.
Average Rainfall for Port Arthur
| Month | Precipitation |
|---|---|
| Jan | 5.69in. |
| Feb | 3.35in. |
| Mar | 3.75in. |
| Apr | 3.84in. |
| May | 5.83in. |
| Jun | 6.58in. |
| Jul | 5.23in. |
| Aug | 4.85in. |
| Sept | 6.10in. |
| Oct | 4.67in. |
| Nov | 4.75in. |
| Dec | 5.25in. |
The driest month in Port Arthur is February with 3.35 inches of precipitation, and with 6.58 inches June is the wettest month.