Climate averages 1991–2020

McAllen weather
in June.

A very hot, moderately wet month: the 3rd warmest and the 8th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 34.9°C Daytime mean, June
Average low 25.1°C Night-time mean, June
Rainfall 51 mm 7 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in McAllen · average highYear overview

June is a very hot month in McAllen: daytime highs average 34.9°C and nights cool to about 25.1°C. By daytime temperature it is the 3rd warmest of the 12 months.

Expect about 51 mm of rain on roughly 7 days, which makes June a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 45 min on an average June day.

The nearest other city in this atlas is Mission (10 km away). In June its highs average 35.2°C, about as warm as McAllen, with 51 mm of rain.

Among the 498 cities listed in the United States, McAllen ranks 23rd of 498 for the warmest June highs and joint 161st of 498 for the driest June (rainfall, lowest first). The mean June high of those 498 cities is 27.9°C; McAllen is 7.0°C warmer than that mean.

From June to July, average highs rise by 0.7°C to 35.6°C, and monthly rainfall rises from 51 mm to 55 mm.

The annual picture

June in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 10152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

McAllen climate table

1991–2020
Monthly climate averages for McAllen, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 21.8°C12.1°C12.1°C264.410.711 h
February 24.4°C14.1°C14.1°C244.411.311 h
March 27.2°C16.8°C16.8°C365.212.012 h
April 30.5°C19.9°C19.9°C445.312.813 h
May 33.0°C23.1°C23.1°C556.613.413 h
June, selected 34.9°C25.1°C25.1°C517.013.714 h
July 35.6°C25.5°C25.5°C555.713.614 h
August 35.9°C25.7°C25.7°C396.713.113 h
September 32.5°C23.8°C23.8°C8811.812.312 h
October 30.1°C20.5°C20.5°C596.711.612 h
November 25.7°C16.2°C16.2°C355.310.911 h
December 22.5°C13.0°C13.0°C305.110.511 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

June in nearby cities

Distance from McAllen

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for McAllen) is explained once on the McAllen year overview and on the Sources, method and limits page.

Edinburg and Mission lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.