McAllen weather by month
Average highs run from 73°F in January to 98°F in July, and January nights average 53°F. It gets 22 inches of rain and melted snow a year, with almost no snow. Expect about 177 days a year at 90°F or hotter. The most comfortable months are November to March.
Best time to visit McAllen
For comfortable weather, go in November to March. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 73°F | 53°F | 0.8 in | 0.0 in | 2 | 0 | 0 | mild |
| February | 77°F | 57°F | 0.7 in | 0.0 in | 2 | 2 | 0 | warm |
| March | 83°F | 63°F | 1.4 in | 0.0 in | 2 | 6 | 0 | warm |
| April | 88°F | 68°F | 1.4 in | 0.0 in | 2 | 13 | 0 | hot |
| May | 93°F | 74°F | 2.0 in | 0.0 in | 3 | 24 | 0 | hot |
| June | 97°F | 78°F | 3.1 in | 0.0 in | 3 | 28 | 0 | very hot |
| July | 99°F | 79°F | 2.0 in | 0.0 in | 3 | 30 | 0 | very hot |
| August | 100°F | 79°F | 1.8 in | 0.0 in | 3 | 30 | 0 | very hot |
| September | 94°F | 76°F | 4.6 in | 0.0 in | 6 | 24 | 0 | hot |
| October | 89°F | 69°F | 2.1 in | 0.0 in | 3 | 16 | 0 | hot |
| November | 80°F | 60°F | 1.2 in | 0.0 in | 2 | 3 | 0 | warm |
| December | 74°F | 54°F | 1.1 in | 0.1 in | 3 | 1 | 0 | mild |
| Year | 87°F avg | 67°F avg | 22.2 in | 0.1 in | 32 | 177 | 1 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Mcallen Miller Intl. Airport, TX (USW00012959), 2.6 miles from the city center; snowfall from Mcallen, TX. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in McAllen
The shortest day is December 21, with 10h 29m of daylight; the longest is June 21, with 13h 47m. The earliest sunset comes around November 23 (5:40 pm) and the latest around June 28 (8:29 pm). The sun sets after 8 pm on 124 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:22 am | 6:02 pm | 10h 41m |
| February | 7:08 am | 6:25 pm | 11h 17m |
| March | 7:42 am | 7:41 pm | 11h 59m |
| April | 7:09 am | 7:56 pm | 12h 47m |
| May | 6:46 am | 8:12 pm | 13h 26m |
| June | 6:40 am | 8:26 pm | 13h 46m |
| July | 6:50 am | 8:27 pm | 13h 37m |
| August | 7:05 am | 8:08 pm | 13h 03m |
| September | 7:18 am | 7:36 pm | 12h 18m |
| October | 7:32 am | 7:04 pm | 11h 32m |
| November | 6:51 am | 5:42 pm | 10h 51m |
| December | 7:13 am | 5:43 pm | 10h 30m |
Calculated for 2026 at the center of McAllen with NOAA's solar equations, in local clock time (Central Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is McAllen getting warmer?
The last 10 years averaged 2.4°F warmer than the 20th century. See the climate stripes for McAllen.Frequently asked questions
What is the warmest month in McAllen?
August is the warmest month, with an average high of 100°F and an average low of 79°F (NOAA 1991-2020 normals).
What is the coldest month in McAllen?
January is the coldest, with average lows of 53°F and highs of 73°F.
What is the rainiest month in McAllen?
September gets the most precipitation, 4.6 inches on average. February is the driest at 0.7 inches.
Does it snow in McAllen?
Very little. The normal yearly snowfall is under one inch.
When is the best time to visit McAllen?
For comfortable weather, November to March. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to McAllen?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full McAllen profile.
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