Harlingen, Sunday, 9 August, 00:25
Clear. Feels like 90°. High 95°, low 78°.
In March, Harlingen, TX averages a high of 78.7° and a low of 62.7°. About 1.5 inches of precipitation fall over the month (5 wet days). The record high is 102.9° (1984) and the record low 33.3° (1980). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 76.8° | 60.4° | 17% | 90.7° (1975) | 41.2° (1962) |
| 2 | 77.2° | 60.4° | 18% | 96.4° (2023) | 33.3° (1980) |
| 3 | 77° | 59.9° | 15% | 92.8° (2020) | 38.3° (2002) |
| 4 | 75.7° | 59.4° | 13% | 91.4° (1983) | 38.5° (2002) |
| 5 | 76.5° | 59.7° | 23% | 88.5° (2004) | 38.3° (2019) |
| 6 | 75.9° | 59.9° | 15% | 96.8° (1991) | 39.2° (1966) |
| 7 | 77.4° | 59.9° | 8% | 93.2° (2025) | 40.6° (1989) |
| 8 | 77.5° | 61.9° | 17% | 100.6° (2025) | 40.3° (1996) |
| 9 | 76.5° | 61.9° | 22% | 91.4° (2019) | 45.3° (1995) |
| 10 | 76.8° | 61.3° | 25% | 90.5° (2006) | 45.5° (1994) |
| 11 | 77.7° | 62.6° | 25% | 93.9° (2006) | 47.1° (1994) |
| 12 | 78.1° | 62.1° | 18% | 96.3° (2023) | 40.8° (2022) |
| 13 | 78.6° | 61.9° | 17% | 94.1° (2025) | 41° (1993) |
| 14 | 78.8° | 62.2° | 23% | 102° (2025) | 41.4° (1993) |
| 15 | 79.2° | 63.9° | 27% | 97.3° (2008) | 46.8° (1962) |
| 16 | 78.1° | 64° | 28% | 93.7° (1961) | 45.5° (1962) |
| 17 | 79° | 62.6° | 20% | 90° (1963) | 48.4° (2005) |
| 18 | 80.6° | 63.5° | 8% | 97.9° (2013) | 42.4° (1960) |
| 19 | 79.2° | 63.5° | 13% | 92.7° (1974) | 42.4° (1988) |
| 20 | 78.8° | 62.6° | 17% | 98.1° (2006) | 41.4° (1965) |
| 21 | 78.6° | 61.9° | 13% | 89.4° (1995) | 43° (2010) |
| 22 | 79° | 63° | 8% | 97.3° (1991) | 43.5° (2010) |
| 23 | 80.2° | 64.2° | 20% | 99.9° (1975) | 41.9° (1968) |
| 24 | 80.2° | 64.8° | 12% | 96.4° (2023) | 46° (2006) |
| 25 | 80.1° | 64.9° | 10% | 94.3° (2020) | 48.4° (2006) |
| 26 | 79.7° | 65.3° | 15% | 94.3° (2020) | 52.9° (1965) |
| 27 | 81.7° | 66.4° | 25% | 102.9° (1984) | 49.8° (1996) |
| 28 | 82.4° | 66° | 27% | 98.1° (2020) | 48° (1996) |
| 29 | 81.3° | 65.5° | 25% | 95.7° (2000) | 50° (2010) |
| 30 | 81.3° | 65.3° | 12% | 99.5° (1989) | 41.7° (1987) |
| 31 | 81.3° | 64° | 5% | 93.2° (2016) | 39.6° (1987) |