, with a very mild winter (but with the possibility of short cold spells) and a very hot, muggy summer.
, near the Mexican border, and 100 km (60 mi) away from the coast. The metropolitan area includes the neighboring cities of Edinburg and Mission. Across the Rio Grande River lies the Mexican city of Reynosa.
of the coldest month (January) is of 17.1 °C (63 °F), that of the warmest month (August) is of 31.8 °C (89 °F). We are in one of the hottest cities in the United States, one of the few where the average annual maximum temperature reaches 30 °C (86 °F).
, from December to February, is mild.
The sun shines quite often, although there are periods characterized by clouds, rain and wind.
There may be hot periods even in the middle of winter, with highs around 30 °C (86 °F) and more.
, with highs below 10 °C (50 °F). Very rarely, as happened on Christmas 2004, in December 2017 and in February 2021, it can even
. In recent decades, the record is -8 °C (17.5 °F), recorded in December 1989.
, from June to September, is very hot and sunny, with some thunderstorms. There combination of humidity and temperature makes the heat sweltering.
There can be long, very hot periods even in May and October, and sometimes in late April, while for short periods, the temperature can reach about 40 °C (104 °F) from March to October. The record is 44 °C (111 °F), recorded in June 2017.
From June to November (but with a higher probability from August to October), there is the risk of
. In general, hurricanes weaken when they penetrate inland, however, they can still bring abundant rains, as happened in July 2008 with Hurricane Dolly and in July 2020 with Hurricane Hanna.
The best time to visit McAllen is from November to March. Winter, from December to February, is generally a mild season, although it can sometimes get cold (especially in December and January). You can therefore choose the months of March and November.
. Here are the average temperatures.
January, the coldest month of the year, is generally a very mild month. The average temperature is of
17.1 °C, with a minimum of
11.5 °C and a maximum of
22.7 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-2.2 °C in January 2002.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
35.6 °C in January 2017.
Precipitation amounts to
20 mm, distributed over 6 days.
The day lasts on average 10 hours and 40 minutes.
The average humidity is 68%.
The average wind speed is of
15.4 kph.
February is generally a warm month. The average temperature is of
19.5 °C, with a minimum of
13.8 °C and a maximum of
25.2 °C.
On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
-5.6 °C in February 1996.
On the warmest days of the month, the temperature usually reaches around
33.5 °C. However, it reached
38.3 °C in February 2017.
Precipitation amounts to
20 mm, distributed over 4 days.
The day lasts on average 11 hours and 20 minutes.
The average humidity is 68%.
The average wind speed is of
17.1 kph.
March is generally a warm to hot month. The average temperature is of
22.8 °C, with a minimum of
17.1 °C and a maximum of
28.4 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
2.2 °C in March 2014.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
40 °C in March 2008.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 66%.
The average wind speed is of
18.5 kph.
April is generally a warm to hot month. The average temperature is of
25.8 °C, with a minimum of
20.2 °C and a maximum of
31.3 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
4.4 °C in April 2007.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
41.7 °C in April 2014.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 50 minutes.
The average humidity is 67%.
The average wind speed is of
19.6 kph.
May is generally a very hot month. The average temperature is of
28.7 °C, with a minimum of
23.4 °C and a maximum of
33.9 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C. However, it dropped to
10.6 °C in May 2004.
On the warmest days of the month, the temperature usually reaches around
37.5 °C. However, it reached
43.3 °C in May 1999.
Precipitation amounts to
50 mm, distributed over 4 days.
The day lasts on average 13 hours and 30 minutes.
The average humidity is 69%.
The average wind speed is of
19.9 kph.
June is generally a very hot month. The average temperature is of
30.9 °C, with a minimum of
25.6 °C and a maximum of
36.3 °C.
On the coldest nights of the month, the temperature usually drops to around
21.5 °C. However, it dropped to
18.8 °C in June 1995.
On the warmest days of the month, the temperature usually reaches around
39 °C. However, it reached
43.9 °C in June 2017.
Precipitation amounts to
75 mm, distributed over 5 days.
The day lasts on average 13 hours and 50 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 67%.
The average wind speed is of
18.8 kph.
July is generally a very hot month. The average temperature is of
31.5 °C, with a minimum of
26 °C and a maximum of
36.9 °C.
On the coldest nights of the month, the temperature usually drops to around
22.5 °C. However, it dropped to
20.6 °C in July 2001.
On the warmest days of the month, the temperature usually reaches around
39.5 °C. However, it reached
42.8 °C in July 2009.
Precipitation amounts to
50 mm, distributed over 5 days.
The day lasts on average 13 hours and 35 minutes.
The average humidity is 64%.
The average wind speed is of
19.7 kph.
August, the hottest month of the year, is generally a very hot month. The average temperature is of
31.8 °C, with a minimum of
26.1 °C and a maximum of
37.6 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
20 °C in August 2004.
On the warmest days of the month, the temperature usually reaches around
40 °C. However, it reached
41.7 °C in August 2012.
Precipitation amounts to
45 mm, distributed over 5 days.
The day lasts on average 13 hours and 0 minutes.
The average humidity is 63%.
The average wind speed is of
17.1 kph.
September is generally a very hot month. The average temperature is of
29.4 °C, with a minimum of
24.2 °C and a maximum of
34.6 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C. However, it dropped to
14.4 °C in September 1991.
On the warmest days of the month, the temperature usually reaches around
38.5 °C. However, it reached
42.2 °C in September 2011.
Precipitation amounts to
115 mm, distributed over 8 days.
The day lasts on average 12 hours and 20 minutes.
The average humidity is 70%.
The average wind speed is of
13.4 kph.
October is generally a warm to hot month. The average temperature is of
26.1 °C, with a minimum of
20.4 °C and a maximum of
31.8 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C. However, it dropped to
0.5 °C in October 1993.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40 °C in October 2012.
Precipitation amounts to
55 mm, distributed over 6 days.
The day lasts on average 11 hours and 30 minutes.
The average humidity is 68%.
The average wind speed is of
14.3 kph.
November is generally a warm month. The average temperature is of
21.2 °C, with a minimum of
15.6 °C and a maximum of
26.8 °C.
On the coldest nights of the month, the temperature usually drops to around
5.5 °C. However, it dropped to
0 °C in November 1992.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
37.2 °C in November 2016.
Precipitation amounts to
30 mm, distributed over 5 days.
The day lasts on average 10 hours and 50 minutes.
The average humidity is 69%.
The average wind speed is of
14.7 kph.
December is generally a very mild month. The average temperature is of
17.8 °C, with a minimum of
12.3 °C and a maximum of
23.2 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-3 °C in December 1996.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
33.9 °C in December 2016.
Precipitation amounts to
25 mm, distributed over 6 days.
The day lasts on average 10 hours and 30 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 69%.
The average wind speed is of
14.7 kph.