What is the hottest day ever recorded in McAllen?

McAllen's hottest day on record reached 107°F, set on September 5, 2000. That is the single most extreme high in the nearest long-term weather station's full daily record — about 21°F hotter than a typical year's average high of 86°F, which is why a day like it stands out as genuinely rare rather than just a hot afternoon.

What is the record high temperature in McAllen?

The all-time record high in McAllen is 107°F, recorded on September 5, 2000. Records are drawn from the nearest long-term weather station's full daily history, so this is the hottest single day the station has ever logged — not a typical summer peak.

What is the coldest day ever recorded in McAllen?

McAllen's coldest day on record bottomed out at 17°F, set on January 12, 1962. Like the record high, it comes from the station's full daily record, so it captures the most extreme cold the area has recorded rather than an average winter low.

What is the record low temperature in McAllen?

The all-time record low in McAllen is 17°F, recorded on January 12, 1962. The gap between that and the 107°F record high — a span of 90°F — is the full range of temperatures McAllen has experienced across its long-term daily record.

Is it normal to be this hot in McAllen?

It depends on how far above McAllen's normal a given day runs. A typical year here averages a daily high near 86°F; the all-time record of 107°F (set 2000) sits about 21°F above that. When a live reading is available, the live readout just below the record high and low compares it with the temperature typical for that hour this month (estimated from the month's normal high and low), so you can see how unusual the day is rather than guessing.

When did McAllen set its temperature records?

McAllen's record high of 107°F was set in 2000 (September 5, 2000), and its record low of 17°F in 1962 (January 12, 1962). Both are pulled from the station's full daily record going back to 1952, so they reflect the true extremes rather than a recent or partial sample.

Has McAllen been getting hotter?

There isn't enough station data to say: the latest stretch of complete years with no gap over 10 years is 1997–2025, only 26 years (a trend needs at least 30). The all-time records above still use every valid day in the record.

McAllen, Texas Weather Records

The hottest and coldest days McAllen has ever recorded — and how today compares to normal

McAllen’s all-time temperature records

Hottest day on record: 107°Fset September 5, 2000
Coldest day on record: 17°Fset January 12, 1962

That is a 90°F span between the hottest and coldest days McAllen has ever recorded — the full range of what its weather has done across the station’s record back to 1952.

McAllen, TX · Today vs. normal

7°F above typical for 9:15 AM on Sep 21

At 9:15 AM CDT on Sep 21 it was 84°F in McAllen — 7° above the 77°F typical for that hour (estimated from the Sep 21 normal high of 91°F and low of 71°F, interpolated from the monthly normals).

How extreme McAllen’s weather gets

McAllen’s weather is usually mild by its own standards — a typical year averages a daily high near 86°F, and the normal high for September runs about 92°F. The records sit well outside that everyday range. The hottest day on record reached 107°F in 2000 — roughly 21°F above a typical year’s average high, the kind of gap that turns an ordinary summer into a genuine heat event.

At the other end, McAllen has bottomed out at 17°F (1962). Those edges are why the today-versus-normal readout above is worth a glance: it shows where today falls between the normal and the record, so a hot afternoon can be judged against the real history rather than a hunch. A reading a few degrees over the September normal is ordinary; one pushing toward the 107°F record is the rare event the record marks.

Frequently asked

What is the hottest day ever recorded in McAllen?: McAllen's hottest day on record reached 107°F, set on September 5, 2000. That is the single most extreme high in the nearest long-term weather station's full daily record — about 21°F hotter than a typical year's average high of 86°F, which is why a day like it stands out as genuinely rare rather than just a hot afternoon.
What is the record high temperature in McAllen?: The all-time record high in McAllen is 107°F, recorded on September 5, 2000. Records are drawn from the nearest long-term weather station's full daily history, so this is the hottest single day the station has ever logged — not a typical summer peak.
What is the coldest day ever recorded in McAllen?: McAllen's coldest day on record bottomed out at 17°F, set on January 12, 1962. Like the record high, it comes from the station's full daily record, so it captures the most extreme cold the area has recorded rather than an average winter low.
What is the record low temperature in McAllen?: The all-time record low in McAllen is 17°F, recorded on January 12, 1962. The gap between that and the 107°F record high — a span of 90°F — is the full range of temperatures McAllen has experienced across its long-term daily record.
Is it normal to be this hot in McAllen?: It depends on how far above McAllen's normal a given day runs. A typical year here averages a daily high near 86°F; the all-time record of 107°F (set 2000) sits about 21°F above that. When a live reading is available, the live readout just below the record high and low compares it with the temperature typical for that hour this month (estimated from the month's normal high and low), so you can see how unusual the day is rather than guessing.
When did McAllen set its temperature records?: McAllen's record high of 107°F was set in 2000 (September 5, 2000), and its record low of 17°F in 1962 (January 12, 1962). Both are pulled from the station's full daily record going back to 1952, so they reflect the true extremes rather than a recent or partial sample.
Has McAllen been getting hotter?: There isn't enough station data to say: the latest stretch of complete years with no gap over 10 years is 1997–2025, only 26 years (a trend needs at least 30). The all-time records above still use every valid day in the record.