Portland, OR All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Portland, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 116°F (47°C) | June 28, 2021 |
| Record Low | 8°F (-13°C) | December 8, 1972 |
| Lowest High | 15°F (-9°C) | February 3, 1989 |
| Highest Low | 75°F (24°C) | June 28, 2021 |
| Highest Mean | 95.5°F (35°C) | June 28, 2021 |
| Lowest Mean | 11.9°F (-11°C) | February 3, 1989 |
| Precipitation | ||
| Max in One Calendar Day | 2.69" (68.3 mm) | November 19, 1996 |
| Max in One Month | 15.24" (387.2 mm) | December 2015 |
| Least in One Month | 0.00" (0.0 mm) | August 1970 |
| Max in One Year | 63.23" (1606.0 mm) | 1996 |
| Least in One Year | 22.51" (571.7 mm) | 1985 |
| Snowfall | ||
| Max in One Calendar Day | 10.8" (27.4 cm) | February 22, 2023 |
| Max in One Month | 19.0" (48.3 cm) | December 2008 |
| Max in One Season | 23.9" (60.7 cm) | 2008-09 |
| Max in One Year | 19.0" (48.3 cm) | 2008 |
| Earliest Snow | 0.6" (1.5 cm) | November 17, 1985 |
| Earliest Measurable Snow | 0.6" (1.5 cm) | November 17, 1985 |
| Latest Snow | 0.3" (0.8 cm) | April 12, 2022 |
| Latest Measurable Snow | 0.3" (0.8 cm) | April 12, 2022 |
| Period of Record | ||
| Temperature | January 1, 1970 – August 1, 2026 | |
| Precipitation | January 1, 1970 – August 1, 2026 | |
| Snowfall | January 1, 1970 – August 1, 2026 | |
Note: Records compiled from NOAA GHCN-Daily observations at PORTLAND INTL AP (7 mi from Portland, OR). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Portland, OR?
The all-time record high in Portland, OR is 116°F (47°C), set on June 28, 2021.
What is the coldest temperature ever recorded in Portland, OR?
The all-time record low in Portland, OR is 8°F (-13°C), set on December 8, 1972.
What is the most rain Portland, OR has ever had in one day?
The most precipitation recorded in one calendar day near Portland, OR is 2.69 inches, on November 19, 1996.
What is the biggest snowfall ever recorded in Portland, OR?
The most snow recorded in one calendar day near Portland, OR is 10.8 inches, on February 22, 2023.
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Portland Weather History
Monthly averages, records, and climate data for Portland
Oregon Weather Extremes
Statewide records and extremes for other Oregon cities