WeatherWX.com
Harlingen Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 70°F Lo 56°F | Hi 73°F Lo 59°F | Hi 78°F Lo 64°F | Hi 84°F Lo 69°F | Hi 88°F Lo 74°F | Hi 92°F Lo 77°F | Hi 93°F Lo 78°F | Hi 94°F Lo 80°F | Hi 90°F Lo 78°F | Hi 86°F Lo 72°F | Hi 77°F Lo 64°F | Hi 72°F Lo 59°F |
| 10 mph | 12 mph | 12 mph | 12 mph | 12 mph | 11 mph | 11 mph | 10 mph | 9 mph | 10 mph | 10 mph | 11 mph |
| 0.5 in | 0.4 in | 0.5 in | 0.5 in | 0.8 in | 0.9 in | 0.9 in | 0.6 in | 1.6 in | 0.6 in | 0.6 in | 0.5 in |
| 69% | 71% | 70% | 71% | 74% | 72% | 69% | 66% | 68% | 67% | 70% | 71% |
| 41% | 42% | 39% | 37% | 34% | 29% | 24% | 23% | 35% | 28% | 40% | 43% |
| 30.1 in | 30.0 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.1 in | 30.1 in |
| 29 | 26 | 28 | 27 | 27 | 24 | 25 | 25 | 20 | 28 | 27 | 29 |
| 2 | 2 | 3 | 3 | 4 | 6 | 6 | 6 | 10 | 3 | 3 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 5 | 4 |
| 60 | 53 | 60 | 63 | 69 | 72 | 88 | 91 | 64 | 81 | 59 | 57 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 21°C Lo 14°C | Hi 23°C Lo 15°C | Hi 26°C Lo 18°C | Hi 29°C Lo 21°C | Hi 31°C Lo 23°C | Hi 33°C Lo 25°C | Hi 34°C Lo 26°C | Hi 35°C Lo 27°C | Hi 32°C Lo 26°C | Hi 30°C Lo 22°C | Hi 25°C Lo 18°C | Hi 22°C Lo 15°C |
| 17 km/h | 19 km/h | 19 km/h | 20 km/h | 20 km/h | 17 km/h | 18 km/h | 17 km/h | 14 km/h | 16 km/h | 16 km/h | 17 km/h |
| 12 mm | 9 mm | 14 mm | 14 mm | 21 mm | 23 mm | 23 mm | 16 mm | 40 mm | 16 mm | 15 mm | 12 mm |
| 69% | 71% | 70% | 71% | 74% | 72% | 69% | 66% | 68% | 67% | 70% | 71% |
| 41% | 42% | 39% | 37% | 34% | 29% | 24% | 23% | 35% | 28% | 40% | 43% |
| 1019 mb | 1017 mb | 1015 mb | 1012 mb | 1012 mb | 1012 mb | 1013 mb | 1012 mb | 1013 mb | 1014 mb | 1018 mb | 1018 mb |
| 29 | 26 | 28 | 27 | 27 | 24 | 25 | 25 | 20 | 28 | 27 | 29 |
| 2 | 2 | 3 | 3 | 4 | 6 | 6 | 6 | 10 | 3 | 3 | 2 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 5 | 4 |
| 60 | 53 | 60 | 63 | 69 | 72 | 88 | 91 | 64 | 81 | 59 | 57 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.