Rio Hondo, TX
Climate overview — based on NOAA 1991-2020 normals from HARLINGEN RIO GRANDE AP, TX US.
Year-round temperatures (°F)
Climate summary
Rio Hondo has an annual average temperature of 75°F with about 24 inches of precipitation per year. The warmest month is August (average high 97.2°F), and the coldest is January (average low 49.8°F). September is typically the wettest month (5.31 in) and February the driest (0.73 in).
Best time to visit Rio Hondo
Full guide →Climate change signal
All-time records →153 of 366 (41.8%) of Rio Hondo's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1950s | 22 | |
| 1960s | 5 | |
| 1990s | 20 | |
| 2000s | 96 | |
| 2010s | 138 | |
| 2020s | 85 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 71.7°F | 49.8°F | 60.8°F | 1.05 in | — | 8 |
| February | 75.9°F | 53.9°F | 64.9°F | 0.73 in | — | 6 |
| March | 81.0°F | 59.4°F | 70.2°F | 1.31 in | — | 6 |
| April | 86.5°F | 65.2°F | 75.8°F | 1.46 in | — | 5 |
| May | 91.4°F | 71.0°F | 81.2°F | 2.50 in | — | 6 |
| June | 95.0°F | 74.6°F | 84.8°F | 2.26 in | — | 6 |
| July | 96.2°F | 75.3°F | 85.8°F | 1.76 in | — | 6 |
| August | 97.2°F | 75.3°F | 86.2°F | 1.92 in | — | 5 |
| September | 92.2°F | 72.5°F | 82.3°F | 5.31 in | — | 11 |
| October | 87.6°F | 65.6°F | 76.6°F | 2.71 in | — | 9 |
| November | 79.3°F | 57.4°F | 68.4°F | 1.81 in | — | 8 |
| December | 73.2°F | 51.6°F | 62.4°F | 1.22 in | — | 8 |
Climate twins of Rio Hondo
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).