Climate normals · 1970–2000
McAllen Climate
McAllen is a city in United States (TX) with a population of about 140,269. Its average annual temperature is 23.5°C (74°F), with roughly 578 mm of rain per year.
23.5°C
Avg Temp
578
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
McAllen Climate
McAllen has an average annual temperature of 23.5°C (74°F) and receives about 578 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
23.5°C
Avg Temp
578
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 15° / 59° | 34 mm |
| February | 17° / 63° | 32 mm |
| March | 21° / 70° | 16 mm |
| April | 24° / 76° | 36 mm |
| May | 27° / 80° | 76 mm |
| June | 29° / 84° | 69 mm |
| July | 30° / 85° | 46 mm |
| August | 30° / 86° | 54 mm |
| September | 28° / 82° | 102 mm |
| October | 24° / 76° | 57 mm |
| November | 20° / 68° | 27 mm |
| December | 16° / 62° | 29 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit McAllen
The most comfortable months to visit McAllen are typically March, November and April, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 36°C high). The coldest is January (near 9°C low). September is usually the wettest month.
Where to stay near McAllen
Planning a trip to McAllen? Compare hotels and short-term rentals — live availability and prices.
Top-rated places to stay near McAllen
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to McAllen?
Get climate tips and the best lodging deals for McAllen by email. No spam, unsubscribe anytime.
Other cities in United States
Frequently Asked Questions
The most comfortable months to visit McAllen are typically March, November and April, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
McAllen, United States has an average annual temperature of 23.5°C and about 578 mm of precipitation per year. The warmest month is August and the coldest is January.
In August, the hottest month, daily highs in McAllen average about 36°C (97°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.