McAllen, TX Weather & Climate Normals
McAllen's real weather, in one number
McAllen, TX scores 56/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
McAllen's hottest and coldest months
McAllen's hottest month is Aug, averaging 88°F; its coldest is Jan, averaging 60°F, a 27.6°F swing across the year, a middling gap by national standards.
McAllen's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 71°F | 49°F | 0.65in | 0in |
| Feb | 76°F | 53°F | 0.64in | 0in |
| Mar | 82°F | 59°F | 1.04in | 0in |
| Apr | 87°F | 65°F | 1.37in | 0in |
| May | 92°F | 71°F | 1.39in | 0in |
| Jun | 96°F | 76°F | 3.05in | 0in |
| Jul | 98°F | 77°F | 1.62in | 0in |
| Aug | 99°F | 77°F | 1.45in | 0in |
| Sep | 94°F | 73°F | 3.81in | 0in |
| Oct | 89°F | 66°F | 2.04in | 0in |
| Nov | 80°F | 57°F | 1.05in | 0in |
| Dec | 73°F | 51°F | 0.57in | 0.1in |
Jan, Feb, Mar, Nov, and Dec are the best time to see McAllen at its mildest; the rest of the year, plan around Aug's heat.
Rain and snow in McAllen
McAllen averages 18.68in of precipitation a year across roughly 43 days with measurable rain or snow, and 0.1in of snow a year.
Where McAllen ranks
McAllen ranks 723 of 4876 US cities in this dataset for comfort score, and 71 of 384 within TX. About 148,782 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Mcallen, TX US, 2.3 miles from McAllen, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure