| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 72.1 | 51.3 | 96 | 17 | 0.8 |
| February | 76.8 | 55.5 | 101 | 19 | 0.7 |
| March | 82.3 | 61.3 | 105 | 31 | 1.2 |
| April | 87.7 | 67.1 | 109 | 40 | 1.3 |
| May | 92.3 | 72.9 | 110 | 50 | 2.0 |
| June | 96.6 | 76.6 | 111 | 59 | 2.7 |
| July | 97.9 | 77.5 | 109 | 65 | 2.1 |
| August | 98.9 | 77.7 | 108 | 64 | 1.8 |
| September | 93.6 | 74.3 | 108 | 50 | 4.7 |
| October | 88.5 | 67.5 | 104 | 41 | 2.1 |
| November | 79.8 | 59.1 | 102 | 30 | 1.2 |
| December | 73.1 | 52.9 | 96 | 18 | 1.1 |
| Entire year | 86.7 | 66.2 | 111 | 17 | 22.1 |
|
More McAllen Weather Records
1941–2024
|
||
|---|---|---|
| Highest daily low | 88 °F | August 21, 1945 |
| Lowest daily high | 29 °F | January 30, 1951 |
| Greatest daily range (Difference of high and low) |
50 °F | March 16, 1946 |
| Greatest difference in daily high over two conscutive days |
46 °F | Jan 31 – Feb 1, 1996 |
| Most daily precipitation | 9.4 inches | August 10, 1980 |
| Most monthly precipitation | 12.0 inches | October 1958 |
| Most yearly precipitation | 37.2 inches | 1966 |
| Most yearly days with precipitation | 87 | 1958 |
| Earliest freeze | November 29 | 1959 |
| Earliest day ≥ 100 °F | February 23 | 2017 |
| Latest freeze | March 13 | 1951 |
| Latest day ≥ 100 °F | November 4 | 1988 |
| Most days in a year < 32 °F | 10 | 1963 |
| Most days in a year ≥ 80 °F | 311 | 2017 |
| Most days in a year ≥ 90 °F | 221 | 2016 |
| Most days in a year ≥ 100 °F | 97 | 2023 |
| Most days in a year ≥ 110 °F | 1 | 2017 |
|
McAllen Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 10 days | Sep 9–18, 2013 |
| Without precipitation | 76 days | Oct 25, 1966 – Jan 8, 1967 |
| High temperature ≥ 80 °F | 211 days | Mar 14 – Oct 10, 2017 |
| High temperature ≥ 90 °F | 142 days | May 18 – Oct 6, 2012 |
| High temperature ≥ 100 °F | 49 days | Jul 12 – Aug 29, 2009 |