McAllen (TX) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at McAllen

McAllen average temperature chart (Celsius) McAllen average temperature chart (Fahrenheit)
Average monthly temperatures in McAllen (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.3 22.4 26.9 30.3 32 34.2 35.5 35.6 33.4 29.7 25.6 21.6
°F 68.6 72.4 80.4 86.5 89.6 93.6 95.9 96.1 92.1 85.5 78.1 70.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

McAllen monthly rainfall chart (mm) McAllen monthly rainfall chart (inches)
Average monthly rainfall in McAllen (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 31 31 12 34 77 67 36 50 101 57 26 29
inches 1.2 1.2 0.5 1.3 3 2.7 1.4 2 4 2.2 1 1.1
Rainy days 4 4 2 3 4 4 3 4 6 4 3 4

Average annual rainfall in McAllen: 476.5mm (187.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in McAllen

McAllen average daily sunshine chart
Average daily sunshine McAllen
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.5 5.5 6.4 7 7.7 9.5 10.1 9.3 7.8 6.9 5.6 4.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

McAllen average minimum / maximum temperatures (Celsius) McAllen average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in McAllen (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 9.6 11.1 15.5 19.5 22.2 23.9 24.5 24.5 23.2 18.8 14.5 10.5
Max °C 20.6 22.7 27.2 30.6 32.3 34.5 35.8 35.9 33.7 30 25.9 21.9
Min °F 49.3 52 59.8 67 71.9 75 76 76.1 73.7 65.8 58.1 50.9
Max °F 59.2 62.4 70.3 77 81 84.6 86.2 86.4 83.1 75.9 68.4 61.2

Sea temperature

The graph below shows the average sea temperature.

McAllen average sea temperature chart (Celsius) McAllen average sea temperature chart (Fahrenheit)
Average sea temperature around McAllen in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.6 19.8 20.3 22.2 25.3 27.8 28.5 28.9 28.9 27.2 24.4 22.2
°F 69.1 67.7 68.5 72 77.5 82.1 83.4 84 84 81 75.9 71.9

Wind speed

The graph below shows the average wind speed.

McAllen average winspeed by month (km/h) McAllen average winspeed by month (mph)
Average wind speed in McAllen (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 18 19 20 18 17 17 15 14 14 16 16
mph 10 11 12 12 11 11 10 9 9 9 10 10

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

McAllen relative humidity averages
Average relative humidity in McAllen
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 72% 70% 71% 74% 72% 69% 70% 73% 73% 73% 74%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

McAllen weather stats

McAllen weather statistics
Hottest month: August 35.6°C 96.1°F
Driest month: March 12mm 0.5ins
Sunniest month: July 10.1hrs
Coldest month: January 20.3°C 68.5°F
Wettest month: September 101mm 4ins
Warmest sea: August 28.9°C 84°F
Map showing location of McAllen (26.20341, -98.23001) McAllen map pin © Google

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