When to go · United States

When to go to McAllen

Twelve months of averages for McAllen, and what they say about when to go.

When to go

What the averages say

Mean daily highs and lows and the month's rain, averaged over 2001 to 2020.

On these averages, McAllen has a mean high between 18°C and 32°C and under 150 mm of rain in October to March.

Of those months, it is also dry (under 50 mm of rain) and not humid in December to March.

Hot months (a mean high of 32°C or more): April to September.
Humid months (a high of 25°C or more with relative humidity of 70% or more): September to November.
The warmest month is June (36°C) and the coolest January (22°C). The wettest is September (134 mm) and the driest February (20 mm); about 604 mm of rain falls in a year.

How these sentences are worded

Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.

McAllen: highs, lows and rainHighLowRain

The year at a glance

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

JanMild–warm, dry
FebMild–warm, dry
MarMild–warm, dry
AprHot
MayHot
JunHot
JulHot
AugHot
SeptHot
OctMild–warm, mixed
NovMild–warm, mixed
DecMild–warm, dry

Month by month

Every month in McAllen

The whole year, with humidity, cloud and the sunlight reaching the ground.

Climate in McAllen by month: mean daily high and low, rain, and what the month is like
Month	High	Low	Rain	Humidity	Cloud	Sunlight (kWh/m²/day)	High in Dubai	What it is like
January	22°C	10°C	24 mm	71%	57%	3.2	23°C	Mild to warm and dry
February	25°C	12°C	20 mm	69%	57%	4	24°C	Mild to warm and dry
March	29°C	15°C	27 mm	67%	58%	4.8	27°C	Mild to warm and dry
April	32°C	19°C	34 mm	65%	56%	5.6	31°C	Hot
May	34°C	22°C	53 mm	65%	49%	6.1	35°C	Hot
June	36°C	24°C	71 mm	65%	37%	6.9	37°C	Hot
July	35°C	24°C	75 mm	68%	38%	6.8	39°C	Hot
August	36°C	25°C	42 mm	66%	33%	6.6	39°C	Hot
September	33°C	23°C	134 mm	72%	43%	5.4	37°C	Hot
October	31°C	20°C	57 mm	70%	36%	4.7	34°C	Mild to warm, humid or showery
November	26°C	15°C	38 mm	71%	44%	3.7	29°C	Mild to warm, humid or showery
December	23°C	11°C	29 mm	71%	55%	3	25°C	Mild to warm and dry

The Dubai column is Dubai's mean daily high, for comparison.

Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.

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Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.

Plan a trip to McAllen More about McAllen When to go

Month

High

Low

Rain

Humidity

Cloud

Sunlight (kWh/m²/day)

High in Dubai

What it is like

January

22°C

10°C

24 mm

71%

57%

3.2

23°C

Mild to warm and dry

February

25°C

12°C

20 mm

69%

57%

24°C

Mild to warm and dry

March

29°C

15°C

27 mm

67%

58%

4.8

27°C

Mild to warm and dry

April

32°C

19°C

34 mm

65%

56%

5.6

31°C

Hot

May

34°C

22°C

53 mm

65%

49%

6.1

35°C

Hot

June

36°C

24°C

71 mm

65%

37%

6.9

37°C

Hot

July

35°C

24°C

75 mm

68%

38%

6.8

39°C

Hot

August

36°C

25°C

42 mm

66%

33%

6.6

39°C

Hot

September

33°C

23°C

134 mm

72%

43%

5.4

37°C

Hot

October

31°C

20°C

57 mm

70%

36%

4.7

34°C

Mild to warm, humid or showery

November

26°C

15°C

38 mm

71%

44%

3.7

29°C

Mild to warm, humid or showery

December

23°C

11°C

29 mm

71%

55%

25°C

Mild to warm and dry