What is the hottest day ever recorded in Portland?

Portland's hottest day on record reached 116°F, set on June 28, 2021. That is the single most extreme high in the nearest long-term weather station's full daily record — about 52°F hotter than a typical year's average high of 64°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 Portland?

The all-time record high in Portland is 116°F, recorded on June 28, 2021. 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 Portland?

Portland's coldest day on record bottomed out at -3°F, set on February 2, 1950. 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 Portland?

The all-time record low in Portland is -3°F, recorded on February 2, 1950. The gap between that and the 116°F record high — a span of 119°F — is the full range of temperatures Portland has experienced across its long-term daily record.

Is it normal to be this hot in Portland?

It depends on how far above Portland's normal a given day runs. A typical year here averages a daily high near 64°F; the all-time record of 116°F (set 2021) sits about 52°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 Portland set its temperature records?

Portland's record high of 116°F was set in 2021 (June 28, 2021), and its record low of -3°F in 1950 (February 2, 1950). Both are pulled from the station's full daily record going back to 1938, so they reflect the true extremes rather than a recent or partial sample.

Has Portland been getting hotter?

Yes — Portland's annual mean temperature has trended about 3.1°F warmer since 1939 (+0.36°F per decade, fitted to the complete years of 1939–2025). That gradual shift in the average is separate from the all-time records above, which mark the single most extreme days rather than the trend, but a warming baseline is part of why recent years more often brush up against the record-high end.

Portland, Oregon Weather Records

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

Portland’s all-time temperature records

Hottest day on record: 116°Fset June 28, 2021
Coldest day on record: -3°Fset February 2, 1950

That is a 119°F span between the hottest and coldest days Portland has ever recorded — the full range of what its weather has done across the station’s record back to 1938.

Portland, OR · Today vs. normal

About typical for 7:30 AM on Sep 20

At 7:30 AM PDT on Sep 20 it was 55°F in Portland — about the 54°F typical for that hour (estimated from the Sep 20 normal high of 75°F and low of 53°F, interpolated from the monthly normals).

How extreme Portland’s weather gets

Portland’s weather is usually mild by its own standards — a typical year averages a daily high near 64°F, and the normal high for September runs about 77°F. The records sit well outside that everyday range. The hottest day on record reached 116°F in 2021 — roughly 52°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, Portland has bottomed out at -3°F (1950). 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 116°F record is the rare event the record marks.

Frequently asked

What is the hottest day ever recorded in Portland?: Portland's hottest day on record reached 116°F, set on June 28, 2021. That is the single most extreme high in the nearest long-term weather station's full daily record — about 52°F hotter than a typical year's average high of 64°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 Portland?: The all-time record high in Portland is 116°F, recorded on June 28, 2021. 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 Portland?: Portland's coldest day on record bottomed out at -3°F, set on February 2, 1950. 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 Portland?: The all-time record low in Portland is -3°F, recorded on February 2, 1950. The gap between that and the 116°F record high — a span of 119°F — is the full range of temperatures Portland has experienced across its long-term daily record.
Is it normal to be this hot in Portland?: It depends on how far above Portland's normal a given day runs. A typical year here averages a daily high near 64°F; the all-time record of 116°F (set 2021) sits about 52°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 Portland set its temperature records?: Portland's record high of 116°F was set in 2021 (June 28, 2021), and its record low of -3°F in 1950 (February 2, 1950). Both are pulled from the station's full daily record going back to 1938, so they reflect the true extremes rather than a recent or partial sample.
Has Portland been getting hotter?: Yes — Portland's annual mean temperature has trended about 3.1°F warmer since 1939 (+0.36°F per decade, fitted to the complete years of 1939–2025). That gradual shift in the average is separate from the all-time records above, which mark the single most extreme days rather than the trend, but a warming baseline is part of why recent years more often brush up against the record-high end.